User's Manual for REMIND EPC 50

REMIND™ EPC 50 Network

User´s Manual

Product No.

31830-6410-1

Printed Book No.

Jan 2001 493107611 (3-1)

Alfa Laval Marine & Power

Alfa Laval reserve the right to make changes at any time without prior notice. Any comments regarding possible errors and omissions or suggestions for improvement of this publication would be gratefully appreciated. Copies of this publication can be ordered from your local Alfa Laval company. company. Published by:

Alfa Laval Marine & Power AB S - 147 80 Tumba Sweden

© Copyright Alfa Laval Marine & Power AB 1999.

Contents

1

Scope

5

2

Introduction

7

2 .1

Requirements

7

12

SattBus Serial Unit, SBSU Description

39

1 2 .1

Mechanical De Design

41

1 2 .2

LED Indicators

41

1 2 .3

Switches

41

1 2 .4

Installation

42

3

Software Installation

4

General about SattBus installation

11

1 2 .5

Switch Se Settings

43

5

Hardware Installation

13

12..6 12

Tec ech hnical Spe Specificati ations

47

5 .1

O v e r v ie w

13

5 .2

Connect a PC to EPC50 Control Cabinet using a SattBus 14 PC Board

5 .3

Connect a PC to EPC50 Control Cabinet using a SattBus Serial 17 Unit, SBSU

6

Interconnect several EPC50 units

21

7

HELP Documentation

25

8

Troubleshooting the Network

27

Troubleshooting the PC PC Bo Board Network

27

Troubleshooting th the SB SBSU Network

28

9

Drawings and Figures

31

10

Parts List

33

11

SattBus PC-board Description

35

Layout and Settings

35

8 .1 8 .2

1 1 .1

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9

493107611 (3-1)

1

Scope

This manual is valid for Alfa Laval REMIND™ EPC 50 program, version 1.0 and for connection of a PC to EPC 50 Control Systems. The manual is intended for personnel with good process knowledge and those who are operating Separating Units with EPC 50 Control System.

493107611 (3-1)

5

1 Scope

6

REMIND™ EPC 50 Network User´s Manual

493107611 (3-1)

2

Introduction

REMIND™ EPC 50 Network, is an Alfa Laval software specifically designed for supervision and remote control of separation units with EPC 50 Control System. With the EPC 50 Control System in remote mode, you can supervise and control the separator units from a personal computer, PC, placed in a control room.

2.1

Requirements

The program REMIND™ EPC 50 Network will run on a PC which meets the following requirements: •

Processor at least Pentium 200 MHz with 16 Mbyte RAM (32 Mbye is recommended) and 30 Mbyte hard disk space available.

•

Operating system Windows 95 and later or Windows NT 4.00 and later.

•

One free RS232 COM-port or one free ISA PC slot.

Warning! Before carrying out any operation that may effect the EPC 50, take steps to ensure that no injury to personnel or damage to equipment can occur as a result of the changes.

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7

2 Introduction

8


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3

3 Software Installation

Software Installation

This chapter describes how to install REMIND™ EPC 50 software in your PC. The installation program is contained on two diskettes. The program requires Windows 95 and later or Windows NT 4.00 and later. The installation can be aborted at any time by clicking the button CANCEL.

The installation procedure When installing the REMIND™ EPC 50 software, proceed as follows: 1. Insert "REMIND™ EPC 50 Network" disk 1 into drive a: Note1. Other PC applications should be closed before installation. Note 2. When requested, insert diskette no. 2.

2. Select Run... from the Start Menu. 3. Welcome" dialog box appears Click the next button. Fill in ”User information” 4. Click the button "Next". The dialog box "Choose Destination Location" appears. The recommended (default) volume and directory path for the REMIND™ EPC 50 program is C:\Program Files\Remind\EPC 50\Network

Click the button "Browse" if another path is requested and enter volume an directory. Click on "OK" to confirm the selected path.

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9

4

General about SattBus installation

A shielded twisted pair cable with a minimum of 3 twists/m and 80–120 Ω characteristic impedance should be used as the bus cable. Minimum area is 0.35 mm 2. The same type of cable must be used for the entire SattBus installation. Note!

Cable length and number of nodes The total length must not exceed 500 m.

Termination The bus cable should be terminated with 100 Ω resistors, connected at the two most remote ends, measured along the cable. See figure above. All units in EPC 50 system, i.e. OP, I/O and MT 50, have internal termination resistors which can be connected/disconnected by jumpers. For EPC 50 I/O-board termination resistor is connected by placing jumper XJ3 in position TERM.

I/O Board

O P E N

X J 3

T E R M

Termination resistor connected when XJ3 in this position

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11

4 General about SattBus installation

EPC 50 Service Guide

For MT 50 the termination resistor is connected by placing a jumper wire between terminal no. 5 and 6 in connector X3.

1

X1

2 3 4 5 6

MT50 Circuit Board

1

X3

2 3 4 5 6

Termination resistor in MT50 is connected when X3:5 - 6 is jumpered

For EPC 50 Remote OP the termination resistor is connected by placing a jumper wire between terminal no. 5 and 6 in connector X1, i.e the screw terminal in the panel box. At the PC, a 100 Ω termination resistor should be connected in the SattBus connector. This is valid for both SattBus PC board and SBSU unit. Only two termination resistor, one at each end, of a SattBus network must be connected! IMPORTANT!

12

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3 Software Installation


Note1. The program must be locally placed. Do not use a network path. Note 2. If a new directory is selected which does not exist, a dialog box appears requesting to create one.

Click the next button ”Setup type” Select typical installation. 5. Click "Next" to open the next dialog box "Select Folder Selection". This folder name will, when installed, appear in the "Start Up" menu for Windows 95 or NT 4.0. Accept proposed name or enter a new one. Note. If there is an already existing version of REMIND™ EPC 50, a dialog box appears asking if the old version should be overwritten or not. Click "Yes" to overwrite the old version or click "No" to select another destination. Click next button ”Start copying files”. Confirm that the setting are OK. 6. Click "Next" to start the installation. It takes a few seconds. The dialog box "Setup Complete" appears. Mark the checkbox if you want launch the REMIND™ EPC 50 program. Click on "Finish" to complete the installation.

10

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5

Hardware Installation

This chapter describes how to connect the PC with REMIND EPC50 Network installed, to EPC 50 Control Cabinets via SattBus network. Up to nine EPC 50 Control Cabinets can be connected. Warning! When handling electronics, avoid electrostatic discharge e.g. by wearing an ESD bracelet.

5.1

Overview

SattBus interconnects the EPC 50 units, MT50, OP and I/O module, in the EPC 50 control system. See figure below. An optional remote OP may also be connected to SattBus. A PC with REMIND™ EPC 50, Network can be connected to SattBus in two alternative ways: •

to SattBus via a SattBus PC board which is mounted inside the PC. (REMIND™ EPC 50, Network Kit, PC-card art.no. 31830-6410-1)

•

to SattBus via a SattBus Serial Unit, SBSU. One of the serial ports of the PC is then used. (REMIND™ EPC 50, Network Kit, SBSU art.no. 31830-6411-1).

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13

5 Hardware Installation


A maximum of 9 EPC 50 Control Cabinets can be controlled and monitored by the PC with the REMIND™ program. Alternative 1: PC with SattBus PC board SattBus

PC

Remote OP (optional)

EPC 50 No. 1

EPC 50 No. 2

EPC 50 No. 9

Alternative 2: PC and SBSU SattBus

EPC 50 No. 1

EPC 50 No. 2

SBSU

RS232

PC

EPC 50 No. 9

The two alternatives for REMIND™ EPC 50, Network.

5.2

Connect a PC to EPC50 Control Cabinet using a SattBus PC Board

This is an alternative which connects the SattBus network directly to the PC using a SattBus PC board. Below is a step-by-step description that shows how to connect the PC to a single or the first one of several EPC 50 Control Cabinets.

14

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1. Unpack the SattBus PC board and check that switches S1 - S5 are set in appropriate positions as described below. Detailed information for the SattBus PC board is found in chapter ‘‘SattBus PC-board Description’’ on page 35. S1 DIP switch for selection of segment start address location of the dual port RAM in the host processor RAM area.

Memory area in PC (HEX)

Switch S1

-1 ON OFF ON ON OFF

D0 D1 C8 BC BE

-2 ON ON ON OFF OFF

-3 ON ON ON OFF OFF

-4 ON ON OFF ON ON

-5 OFF OFF ON ON ON

Note

-6 ON ON ON ON ON

-7 OFF OFF OFF OFF OFF

-8 OFF OFF OFF OFF OFF

Default setting

S2 Not used S3 Reset switch S4 DIP switch which must have following setting

-1 OFF

-2 OFF

Switch S4 -3 -4 -5 OFF ON OFF

-6 OFF

S5 Set switch S5 in position "OFF".

2. Mount the SattBus PC board in an empty ISA slot. 3. Connect the SattBus cable to connector X1 on the SattBus PC board and to connector X3 on I/O board in EPC 50 Control Cabinet.

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15



X3 X1

The electric diagram below shows the connections. EPC 50 I/O board X3 1 2

PC card or SBSU X1 1 2

3 4

1

1

2

2 3 4

4. As switch S5 is set to "OFF" a resistor, 100 Ω, should be connected for SattBus termination. See figure below.

1 SattBus cable

0 0 1

2 3 4

X1

Termination of the SattBus cable.

16

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5.3


Connect a PC to EPC50 Control Cabinet using a SattBus Serial Unit, SBSU

This alternative connects SattBus to the PC via a SattBus Serial Unit, SBSU. Below is a step-by-step description that shows how to connect the PC to a single EPC 50 unit or to the first of several EPC 50 units. 1. Remove the cover from the SBSU unit and set the switches as described below. The SBSU layout, function etc. is described in ‘‘SattBus Serial Unit, SBSU Description’’ on page 39.

Node identity Set the node address to 19 for control and monitoring. If node address is set to 18 only monitoring is possible. The address is set by the two hexadecimal switches “Node identity”. See chapter ‘‘SattBus Serial Unit, SBSU Description’’ on page 39. Set switch marked “H” to "1" and switch marked "L" to "3" for control and monitoring or to "2" for only monitoring. Other settnings are described in chapter ‘‘SattBus Serial Unit, SBSU Description’’ on page 39.

Filter address All four switches SW1–SW2 must be set to zero.

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17



Mode switch The mode switch SW must be set to zero, see chapter ‘‘SattBus Serial Unit, SBSU Description’’ on page 39).

Serial channel parameters The DIP switch below the node identity switches (see chapter ‘‘SattBus Serial Unit, SBSU Description’’ on page 39) is used to set the serial channel parameters. Normally 9600 baud, no parity (SW1 - 5), and "Host interface mode" (SW6 - 8) should be chosen. Parameter switch SW

1

2

3

4

5

6

7

8

ON

ON

ON

OF F

ON

ON

ON

OF F

Other settings are described in ‘‘SattBus Serial Unit, SBSU Description’’ on page 39. 2. Mount the SBSU unit close to the PC by means of 4 screws or a DIN rail. The unit needs a power supply, see the step below. The unit is described in ‘‘SattBus Serial Unit, SBSU Description’’ on page 39. 3. Connect 24 V DC from the power supply ( art.no.: 490083613) to the SBSU 3-pole jackable screw terminal block (marked “POWER”). A suitable cable is 3 × 1.5 mm 2 . The voltage at the terminal screws must be 19–32 V DC. Connect protective ground to the relevant terminal screw, and connect 0 V to ground only at one end of the cable.

18

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4. Use the serial communication cable (RS232, art.no.: 490173740) for connection between the serial port of the PC and the SBSU unit (channel 1). Maximum cable length is 15 m. Use a screened cable and connect the screen to the metal case of the connector. Use a 25-pole metallic male Dtype connector on the SBSU side. The electric diagram below shows the required connections. PC 9-pole D-sub

SBSU 25-pole D-sub Channel 1

2 RD 3 TD

1 2

2 1

5 GND

3

3

2 RD 3 TD 7 GND

5. Connect the SattBus cable to the 4-pole plug-in screw connector, ‘‘SattBus Serial Unit, SBSU Description’’ on page 39. The connector is delivered with the SBSU. Connect the other end to connector X3: 1 and 2 on EPC 50 I/O board in EPC 50 Control Cabinet.

X3

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19



The electric diagram below shows the connections. EPC 50 I/O board X3 1 2 3 4

SBSU SattBus connector 1 2

1

1

2

2 3 4

How to connect SattBus to the next EPC 50 is described in the next section.

20

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6

Interconnect several EPC50 units

Before the systems will be interconnected, check that the systems have different identities. Unexpected problems could arise if two systems have the same identity and communication would be delayed. NOTE!

A maximum of nine EPC 50 units can be connected via SattBus to the PC with the REMINDTM program. The node addresses for each unit must be set before starting up. They are set using the Operator´s panel.

Setting the node addresses All node addresses on SattBus must be unique, which means that each EPC 50 connected to SattBus must have a unique separator identity. The EPC 50 identity is default 1. If one EPC 50 unit is connected, this should have the identity 1, the second unit should have the identity 2 etc. The identity 1 means that all nodes belonging to the unit start at 10, identity 2 means start at 20 etc., see figure below. Monitoring mode means address 18, and Control monitoring mode means address 19. To set the identity, select on the Operator´s panel menu item “Separator Identity In 5”, and then select set required identity (1–9).

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21

6 Interconnect several EPC50 units


PC with REMIND program

Remote Operator’s panel

Remote Operator’s panel

19

12

22

SattBus

I/O Unit

Operator’s Panel

MT50 13

Operator’s Panel

MT50 11

10

23 EPC 50 unit No. 1

22

I/O Unit

21

20

EPC 50 unit No. 2

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Connect SattBus to the next EPC 50 1. Connect SattBus to the next EPC 50 unit using connector X3 on the I/O board, see figure. SattBus is un-polarized, which means that the wires can be swapped. SattBus LED

I/O board

Operator´s panel OP Transducer MT 50 SattBus connection to next EPC 50

SattBus connected To the PC with REMIND TM program SattBus is connected to the next EPC 50 via X3 on the I/O board.

The electric diagram below shows the connections. EPC 50 I/O board X3 1 2

EPC 50 I/O board X3 1 2

1 2

1 2

EPC 50 I/O board X3 1 2

1 2

1 2

3 4

3 4

3 4

SU no. 1

SU no. 2

SU no. 3

493-1077-11 (0-3)

SBSU SattBus connector 1 2

1

1

2

2 3 4

23



Terminate SattBus using the jumper on the I/O board, see figure in the chapter 4. Note. Only the first and the last EPC 50 unit must be terminated.

Inspect Sattbus nodes from the EPC50 The available nodes on the SattBus network can be inspected from the EPC50. Hold in the alarm reset button and press Enter four times on the Operator’s panel. Select SB-list in the menu and press Enter. Step trough the nodes by pressing the + button.

24

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7

HELP Documentation

Detailed HELP information for the current window is available from the REMIND™ EPC 50 menus.

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25

7 HELP Documentation

26


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8

Troubleshooting the Network

8.1

Troubleshooting the PC Board Network

Follow the troubleshooting steps below, if an attempt to establish communication with the EPC network using the PC board fails. 1. Is the PC board address appropriately selected? The address is default HD1000, set in the REMIND program and on the PC board. The later should normally not been changed. 2. Is the “OMM” LED flashing in the front of the PC-board? If no, the PC-board is not appropriately connected to the SattBus network. - Check the SattBus connections. - Check that the EPC units has started and is functioning in an appropriate way. 3. Is the system connected to some nodes but not all? If yes: - Check that the LED “OMM” in the front of the PC board and the SattBus LED on the EPC 50 I/O board (see figure on page 23) are flashing similarly on all EPC’s connected to the network. They must not be off or steady lit. - Check the REMIND system setup. Each EPC system number must correspond to the installation parameter IN5 value in the EPC50 unit. - Check that communication parameter values Fa 94 = 9.6 and Fa 95 = No. - Check that the EPC units which are defined in the system setup, physically are connected to the network.

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27

8 Troubleshooting the Network


8.2 Troubleshooting the SBSU Network Follow the troubleshooting steps below, if an attempt to establish communication with the EPC network using the SBSU unit fails. 1. Is the SBSU power supplied? Check that the “Power on” LED is on. 2. Is the LED “SB Active” flashing? If no, the SBSU is not correctly connected to the SattBus network. - Check the SattBus connections (see the section on page 17). - Check that the EPC units are started and are functioning in an appropriate way. 3. Are the LEDs “TD Channel 1” and/or “RD Channel 1” flashing directly after the start of communication? If no, the SBSU is not correctly connected to the PC. - Check that the channel plug is connected to the SBSU Channel 1. - Check that the cable is connected to the appropriate COM port on the PC, as selected in the REMIND EPC 50 program. 4. Are the LEDs “TD Channel 1” and/or “RD Channel 1” starting to flash directly after start of communication, but then stops? If yes, the connection is OK but there is no response. - Check that the SBSU node identity is appropriately set (see the cover of the SBSU unit). The node identity must have different settings for the two types of REMIND modes. Control&Monitoring: High = 1, Low = 3. Monitoring: High = 1, Low = 2. - Check that the switches in the SBSU unit are in correct positions (see the section on page 17).

28

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5. Is communication established with some nodes, but not all? - Check that all EPC units which are defined in the system setup, physically are connected to the network. - Check that the SattBus LED on the I/O board (see figure on page 23) is flashing on all EPC units connected to the network. - Check the REMIND system setup. Each EPC system number must correspond to the installation parameter IN5 value in the EPC50 unit. - Check that communication parameter values are Fa 94 = 9.6 and Fa 95 = No.

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29


30


493107611 (3-1)

9

Drawings and Figures

SattBus PC board and SattBus Serial Unit, SBSU See the chapters ‘‘SattBus PC-board Description’’ on page 35 and ‘‘SattBus Serial Unit, SBSU Description’’ on page 39 .

Power Supply, 24 VDC, Article No. 490083613

Serial Communication cable. Article No. 490173740 Type: AT Serial Modem Cable. Length 1.8 m. DB9 female and DB25 male connector.

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31

9 Drawings and Figures

32


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10 Parts List

REMIND™ EPC 50, Network Kit, PC-board, art.no. 31830-6410-1

Item

Article No.

Description

1

31830-6430-1

REMIND™ EPC 50 Network, Installation diskettes, 2 p.

2

4931076-11

REMIND™ EPC 50 Network, User’s Manual

3

492720202

SattBus PC board for ISA bus

4

490030701

Termination resistor, 100 ohm

REMIND™ EPC 50, Network Kit, SBSU, art.no. 31830-6411-1

Item

Article No.

Description

1

31830-6430-1

REMIND™ EPC 50 Network, Installation diskettes, 2 p.

2

4931076-11

REMIND™ EPC 50 Network, User’s Manual

3

492829701

SattBus converter, SBSU 232

4

490083613

Power suppy for SBSU

5

490173740

Cable PC - SBSU

6

490030701

Termination resistor, 100 ohm

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33

10 Parts List

34


493107611 (3-1)

11 SattBus PC-board Description

This chapter describes the layout of the SattBus PC-board och how to configure it. The board is used as the hardware interface for connecting a personal computer (PC) of IBM compatible PC type to a SattBus network. The SattBus PC-board is a half size standard I/O channel board (approximately 161 x 127 x 22 mm) which mounts in the PC.

11.1 Layout and Settings The figure below shows the location of the main components on the SattBus PC-board. S2

S4

1 2 3 4 5 6 7 8

X1 S5

1 2 3 4 5 6

1

S3

2 3 4

H1 H2

5 6 7 8

S1 X2 View of the SattBus PC-board with the main parts indicated by numbers.

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35


S1


DIP switch for selection of segment start address location of the dual port RAM in the host processor RAM area. S1-1 is the least significant bit and S1-8 the most significant bit. Position ON corresponds to 0. See recommended examples below.

Switch S1Memory area in PC (hex)

-1

-2

-3

-4

-5

-6

-7

-8

D0000

ON

ON

ON

ON

OFF

ON

OFF

OFF

D1000

OFF

ON

ON

ON

OFF

ON

OFF

OFF

C8000

ON

ON

ON

OFF

ON

ON

OFF

OFF

C6000

ON

OFF

OFF

ON

ON

ON

OFF

OFF

C7000

OFF

OFF

OFF

ON

ON

ON

OFF

OFF

S2

Not used.

S3

To manually reset the communication processor, push the button at the front. At ”Ctrl - Alt Del” the PC may not always generate a reset pulse on its I/O-channel bus.

S4

DIP Switch. S4 must have the following fixed setting (default setting from factory): S4-1 = OFF S4-2 = OFF S4-3 = OFF S4-4 = ON S4-5 = OFF S4-6 = OFF

36

Note

Default setting

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S5


Switch for connection of the 100 ohm termination resistor on the SattBus PC-board, if the board is located at the end of the network, see figure. S5 = OFF when the resistor is not connected. The switch is set to the right. This is the normal position. A standard 100 ohm resistor must be placed in the jackable side of the terminal to avoid interrupting the SattBus communication if the jackable terminal is disconnected. S5 = ON when the resistor is connected. The switch is set to the left. This position is not recommended. Note: If the jackable terminal is disconnected, the SattBus then loses the termination resistor and the communication is corrupted.

X1

4 3 2 1

Jumper Jumper

100 ohm

SattBus cable

X1

4 3 2 1

Jumper Jumper

e l b a c s u B t t a S

The SattBus cable ending in the SattBus PC-board.

The SattBus cable not ending in the SattBus PC-board.

Connection at terminal X1 of the SattBus Cable.

The other end of the bus cable is normally connected to connector X3 on the motherboard of the I/O panel. H1

A red LED for watchdog indication. Normally not lit. The LED is lit at reset and flashes at communication processor or PCboard memory failures.

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37


H2

A yellow LED indicating (intermittently) all traffic on the SattBus network.

X1

Terminals for the SattBus wires. X1 is 4-pole jackable with the screw terminals connected in pairs by jumpers 1,2 and 3,4, see figure above.

X2

Contact for insertion in the PC expansion board slot (8-bit PC-bus).

38


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12 SattBus Serial Unit, SBSU Description

This chapter is an excerpt of the “SBSU, User´s Manual”, which is applicable for this manual. The chapter provides design, configuration and installation of the unit.

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39



Hex. switches for filter addresses (under the cover) Hex. switch for operating mode (under the cover) LED indicators

Hex. switches for SattBus address (under the cover) m m 2 3

DIP switch for serial channel parameters (under the cover)

m m m m 5 0 2 7 1 1

The RS-485 version has an extra DIP switch under the cover here

120 mm 138 mm

106 mm

Connector for serial channel No. 1 Screw terminals for SattBus

m m 5 4

Screw terminals for power supply

SBSU with serial channel RS-232. Front panel indicators and dimensions.

40

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12.1 Mechanical Design The unit is built on a single board (D185 × W138 × H46 mm) with its processor, memory, SattBus and power supply circuitry. The board is mounted in an aluminum profile box with protection class IP40. The unit can be mounted on a wall or in a cabinet by means of four screws. Alternatively, the four smaller holes in the middle can be used to mount a DIN-rail clamp.The cables are connected underneath the unit.

12.2 LED Indicators LED

Function

Colour

TD CHANNEL 1 RD CHANNEL 1 TD CHANNEL 2 RD CHANNEL 2 POWER ON RUN/STOP

Data are transmitted on channel 1 Data are received on channel 1 Not used Not used The unit is receiving power The processor is stopped (supervised by a watchdog timer) The unit is taking part in the SattBus communication SattBus communication is active

Yellow Yellow Yellow Yellow Green

NODE ACTIVE SB ACTIVE

Red Yellow Yellow

12.3 Switches The RS-232 version has 7 hex switches and one DIP switch; the RS-485 version has an additional DIP switch. The function of the switches is described in the chapter “Switch settings”.

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12.4 Installation 12.4.1 Power Supply and Grounding Use a stabilized 24 V DC power supply unit placed close to the SBSU and connect it to the 3-pole jackable screw terminal block. A suitable cable is 3 × 1.5 mm2. The voltage at the terminal screws must be 19–32 V DC. Connect protective ground to the relevant terminal screw, and connect 0 V to ground only at one end of the cable.

12.4.2 SattBus Connection See ‘‘General about SattBus installation’’ on page 11.

12.4.3 Serial Channel Connection The SBSU has two 25-pole metallic female Dtype connectors for serial channels. Only channel 1 is used for the present SBSU application. Use a screened cable and connect the screen to the metal case of the connector. Pin layout for the RS-232 channel: Pin No.

Control signal

3

TD

Transmitted data

2

RD

Received data

7

GND

Signal ground

The cable length may be up to 15 m for RS-232.

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12.5 Switch Settings 12.5.1 SattBus Node Identity Each unit connected to SattBus must have a unique node address between 5 and 125 (decimal). The address is set by the two hexadecimal switches “Node identity” (see figure on page 40). The switch marked “H” (High) is used for the most significant hexadecimal digit, and the switch marked “L” (Low) for the least significant digit. The table below shows how to find the switch settings corresponding to a decimal address. Low

High

0 1 2 3 4 5 6 7

0 16 32 48 64 80 96 112

1 17 33 49 65 81 97 113

2 18 34 50 66 82 98 114

3

4

19 35 51 67 83 99 115

20 36 52 68 84 100 116

5 5 21 37 53 69 85 101 117

6

7

8

9

6 22 38 54 70 86 102 118

7 23 39 55 71 87 103 119

8 24 40 56 72 88 104 120

9 25 41 57 73 89 105 121

A 10 26 42 58 74 90 106 122

B 11 27 43 59 75 91 107 123

C 12 28 44 60 76 92 108 124

D 13 29 45 61 77 93 109 125

E 14 30 46 62 78 94 110 -

F 15 31 47 63 79 95 111 -

Example: The “H” switch set to 4 and the “L” switch set to 2 means the hexadecimal number 42 representing the decimal address 66.

12.5.2 Filter Address When the SBSU is used as a bridge, it is transparent for a range of consecutive SattBus addresses set by means of four hexadecimal switches.

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A message from a node in SattBus network No. 1 with the destination address X is transmitted to SattBus network No. 2 only if X is in the range set by the low and the high filter addresses of SBSU No. 1, see figure below. In the same way, a message is transmitted from SattBus network No. 2 to network No. 1 only if the destination address Y is in between the low and the high filter addresses of SBSU No. 2. SattBus network No. 1

SBSU No.1

SBSU No.2

Low filter address High filter address

Low filter address High filter address

SattBus message with destination address X

SattBus network No. 2

SattBus message with destination address Y

The low and high filter addresses are set by means of the hexadecimal switches SW1 and SW2, see figure on page 40. The decimal address in the range 5–125 can be read from the table above. Example: An SBSU in bridge configuration is to transmit messages from the SattBus side with destination addresses only in the range 18–59 .

1

2

SW1

H

L

Low filter address: 18 (decimal) = 12 (hexadecimal)

SW2

H

L

High filter address: 59 (decimal) = 3B (hexadecimal)

3

B

When the SBSU is used as an interface to the serial channel of a computer system, all four switches SW1–SW2 must be set to zero.

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12.5.3 Mode Switch The mode switch (see figure on page 40) must be set to zero. It is used for production testing and is also intended for future needs.

12.5.4 Serial Channel Parameters The DIP switch below the Node identity switches (see figure on page 40) is used to set the serial channel parameters. Switches 1–5 are used to specify baud rate, parity and modem delay according to the table below. The SBSU always uses one stop bit and 8 data bits. Parameter selection

1

2

3

4

5

300 baud, no parity 300 baud, no parity, modem delay * 300 baud, odd parity 300 baud, odd parity, modem delay* 300 baud, even parity 300 baud, even parity, modem delay* 600 baud, no parity 600 baud, odd parity 600 baud, even parity 1200 baud, no parity 1200 baud, no parity, modem delay* 1200 baud, odd parity 1200 baud, odd parity, modem delay* 1200 baud, even parity 1200 baud, even parity, modem delay* 2400 baud, no parity 2400 baud, no parity, modem delay* 2400 baud, odd parity 2400 baud, odd parity, modem delay* 2400 baud, even parity 2400 baud, even parity, modem delay* 4800 baud, no parity 4800 baud, odd parity

ON OFF ON OFF ON OFF ON ON ON OFF ON OFF ON

ON ON OFF OFF ON ON OFF ON OFF OFF ON ON OFF

ON ON ON ON OFF OFF ON OFF OFF ON OFF OFF OFF

ON ON OFF OFF ON ON ON OFF ON ON ON OFF OFF

ON ON ON ON OFF OFF ON ON OFF ON ON ON ON

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OFF OFF OFF ON OFF ON ON ON OFF OFF OFF ON OFF ON

ON OFF OFF ON

OFF OFF OFF ON

OFF ON ON ON OFF ON

ON ON OFF ON

ON ON ON OFF

OFF OFF OFF OFF

OFF OFF OFF ON OFF ON ON ON

ON OFF

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Parameter selection

1

2

3

4

5

4800 baud, even parity 9600 baud, no parity 9600 baud, odd parity 9600 baud, even parity

OFF ON ON ON

OFF ON OFF ON

ON ON ON OFF

OFF OFF ON OFF

OFF ON OFF OFF

*.

Use this selection when a modem is connected, but for 300, 1200 and 2400 baudrate only . •

Switch 6 must be set to ON.

•

Switch 7 specifies if “Redundancy mode” should be used.

•

Switch 8 specifies if the “Host interface mode” should be used,

Parameter selection

6

7

8

Normal mode Redundancy mode Host interface mode

ON ON ON

ON ON OFF ON ON OFF

12.5.5 Default Switch Settings The SBSU is delivered with the following default settings: The hexadecimal switches (for Node identity, Filter address and Mode) are all zero. The serial channel parameters are 9600 baud with no parity and normal mode.

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12.6 Technical Specifications Serial Channel RS-485 or RS-232 data format, 1 stop bit, 8 data bits; selectable baud rate, parity and modem delay SattBus Network Token passing, frequency shift keying at 62.5 kHz, 3 kilobytes/s effective transmission rate, up to 120 nodes, galvanic separation, nonpolarized connection SattBus Cable Single twisted pair (at least 3 twists/meter), unscreened, characteristic impedance 80–120 Ω, area ≥0.20 mm2 (AWG 24) Note! Use the same type of cable in the entire SattBus installation. Suitable type of cable: Belden 8442 External termination resistor: 100 Ω Cable Length (SattBus) Up to 2000 m; drop cables less than 0.4 m need not be included in the total cable length Permitted drop cables: max. 115 between 0.4 and 2 m max. 3 between 2 and 20 m max. 2 between 20 and 30 m Power Supply 19–32 V DC Power Consumption 5W Cable for Power Supply 3 × 1.5 mm2 Protection Class IP40

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Ambient Temperature Normal operation ±0 to +55 °C Storage –25 to +70 °C Humidity 10–95% relative humidity, non-condensing Electrical Environment Fulfils ElectroMagnetic Compatibility, EMC, Directive 89/336 EEC Dimensions H187 × W138 × D46 mm Weight 580 g

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User's Manual for REMIND EPC 50

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