user's manual for remind epc 50

Alfa Laval Marine & Power

REMIND™ EPC 50 Network

User´s Manual

Product No.

PrintedBook No.

31830-6410-1

Jan 2001493107611 (3-1)

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.

Published by: Alfa Laval Marine & Power ABS - 147 80 TumbaSweden

© Copyright Alfa Laval Marine & Power AB 1999.

Contents

1 Scope 5

2 Introduction 7

2.1 Requirements 7

3 Software Installation 9

4 General aboutSattBus installation 11

5 Hardware Installation 13

5.1 Overview 13

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

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

6 Interconnect several EPC50 units 21

7 HELP Documentation 25

8 Troubleshooting the Network 27

8.1 Troubleshooting the PC Board Network 27

8.2 Troubleshooting the SBSU Network 28

9 Drawings and Figures 31

10 Parts List 33

11 SattBus PC-board Description 35

11.1 Layout and Settings 35

12 SattBus Serial Unit, SBSU Description 39

12.1 Mechanical Design 41

12.2 LED Indicators 41

12.3 Switches 41

12.4 Installation 42

12.5 Switch Settings 43

12.6 Technical Specifications 47

493107611 (3-1)

493107611 (3-1)

1 Scope

n

g

This manual is valid for Alfa Laval REMIND™ EPC 50 program, version 1.0 and for connectioof a PC to EPC 50 Control Systems.

The manual is intended for personnel with goodprocess knowledge and those who are operatinSeparating Units with EPC 50 Control System.

493107611 (3-1) 5

1 Scope REMIND™ EPC 50 Network User´s Manual

6 493107611 (3-1)

2 Introduction

u s

h

r

REMIND™ EPC 50 Network, is an Alfa Laval software specifically designed for supervision and remote control of separationunits with EPC 50 Control System. With the EPC 50 Control System in remote mode, yocan supervise and control the separator unitfrom 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 wit16 Mbyte RAM (32 Mbye is recommended) and 30 Mbyte hard disk space available.

• Operating system Windows 95 and later oWindows 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.

493107611 (3-1) 7

2 Introduction REMIND™ EPC 50 Network User´s Manual

8 493107611 (3-1)

REMIND™ EPC 50 Network User´s Manual 3 Software Installation

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2.

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3 Software Installation

This chapter describes how to install REMIND™ EPC 50 software in your PC. Theinstallation program is contained on two diskettes.

The program requires Windows 95 and lateror Windows NT 4.00 and later.

The installation can be aborted at any time bclicking 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. 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 anddirectory path for the REMIND™ EPC 50program is

C:\Program Files\Remind\EPC 50\Network

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

493107611 (3-1) 9

4 General about SattBus installation

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or

e

A shielded twisted pair cable with a minimum of 3 twists/m and 80–120 Ω characteristic impedance should be used as the bus cableMinimum area is 0.35 mm 2.

Note! The same type of cable must be used fthe entire SattBus installation.

Cable length and number of nodes

The total length must not exceed 500 m.

Termination

The bus cable should be terminated with 100Ω resistors, connected at the two most remote ends, measured along the cable. Sefigure 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 isconnected by placing jumper XJ3 in positionTERM.

I/O Board

Termination resistor connected when XJ3 in this position

TE

RM

XJ3

OP

EN

493-1077-11 (0-3) 11

4 General about SattBus installation EPC 50 Service Guide

For MT 50 the termination resistor is con-nected by placing a jumper wire between ter-minal no. 5 and 6 in connector X3.

For EPC 50 Remote OP the termination resis-tor 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.

IMPORTANT! Only two termination resistor, one at each end, of a SattBus network must be connected!

1 2 3 4 5 61 2 3 4 5 6

X1

X3

MT50 Circuit Board

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

12 493-1077-11 (0-3)

3 Software Installation REMIND™ EPC 50 Network User´s Manual

e.

.

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 onNote. 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 493107611 (3-1)

5 Hardware Installation

is

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 canbe connected to SattBus in two alternative ways:

• to SattBus via a SattBus PC board whichis 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 then used. (REMIND™ EPC 50, NetworkKit, SBSU art.no. 31830-6411-1).

493107611 (3-1) 13

5 Hardware Installation REMIND™ EPC 50 Network User´s Manual

,

C

EPC 50 No. 9

SBSU

PC

PC

SattBus

SattBus RS232

EPC 50 No. 9

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

The two alternatives for REMIND™ EPC 50Network.

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 Pto a single or the first one of several EPC 50Control Cabinets.

EPC 50 No. 1

EPC 50 No. 2

Alternative 1: PC with SattBus PC board

Alternative 2: PC and SBSU

EPC 50 No. 1

EPC 50 No. 2

RemoteOP(optional)

14 493107611 (3-1)

REMIND™ EPC 50 Network User´s Manual 5 Hardware Installation

y

S1 Note

5 -6 -7 -8FF ON OFF OFFFF ON OFF OFF Default settingN ON OFF OFFN ON OFF OFFN ON OFF OFF

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 startaddress location of the dual port RAM in thehost processor RAM area.

S2 Not used

S3 Reset switch

S4 DIP switch which must have following setting

S5 Set switch S5 in position "OFF".

2. Mount the SattBus PC board in an emptISA slot.

3. Connect the SattBus cable to connectorX1 on the SattBus PC board and to connector X3 on I/O board in EPC 50 Control Cabinet.

Memory area in PC(HEX)

Switch

-1 -2 -3 -4 -D0 ON ON ON ON OD1 OFF ON ON ON OC8 ON ON ON OFF OBC ON OFF OFF ON OBE OFF OFF OFF ON O

Switch S4-1 -2 -3 -4 -5 -6OFF OFF OFF ON OFF OFF

493107611 15


X3

The electric diagram below shows the connections.

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

Termination of the SattBus cable.

X1

12

34

EPC 50I/O board X3

PC card or SBSU X1

1

234

1 12

2

100

1

234

X1SattBuscable

16 493107611 (3-1)


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 onlymonitoring is possible. The address is set bythe 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.

493107611 17


et 0 e

ial

t w.

(

s d

7 8

ON OFF

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 sthe serial channel parameters. Normally 960baud, no parity (SW1 - 5), and "Host interfacmode" (SW6 - 8) should be chosen.

Other settings are described in ‘‘SattBus SerUnit, SBSU Description’’ on page 39.

2. Mount the SBSU unit close to the PC bymeans of 4 screws or a DIN rail. The unineeds a power supply, see the step beloThe 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 screwmust be 19–32 V DC. Connect protectiveground to the relevant terminal screw, anconnect 0 V to ground only at one end ofthe cable.

Parameter switch SW

1 2 3 4 5 6

ON ON ON OFF

ON ON

18 493107611 (3-1)


1

X3

4. Use the serial communication cable (RS-232, 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 D-type connector on the SBSU side. The electric diagram below shows the required connections.

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

2 RD3 TD

5 GND

PC9-poleD-sub

SBSU25-pole D-sub Channel 1

2 RD

3 TD7 GND

1122

3 3

493107611 19


The electric diagram below shows the

connections.

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

12

34

EPC 50I/O board X3

SBSUSattBusconnector

1

234

1 12

2

20 493107611 (3-1)

6 Interconnect several EPC50 units

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g at

n-

NOTE! Before the systems will be intercon-nected, check that the systems have different identities. Unexpected problems could arise if two systems have the same identity and com-munication would be delayed.

A maximum of nine EPC 50 units can be con-nected 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 sepator identity. The EPC 50 identity is default 1.If one EPC 50 unit is connected, this shouldhave the identity 1, the second unit should have the identity 2 etc.

The identity 1 means that all nodes belonginto the unit start at 10, identity 2 means start 20 etc., see figure below.

Monitoring mode means address 18, and Cotrol 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).

493-1077-11 (0-3) 21

6 Interconnect several EPC50 units EPC 50 Service Guide

22

212023

MT50

I/O Unit

Operator’s Panel

EPC 50 unit No. 2

ttBus

Remote Operator’s

panel

19 12

111013

EPC 50 unit No. 1

MT50

I/O Unit

Operator’s Panel

PC with REMIND

program

Remote Operator’s

panel

Sa

22 493-1077-11 (0-3)

EPC 50 Service Guide 6 Interconnect several EPC50 units

SattBus connection to next EPC 50

SattBus LED

SBSUSattBusconnector

1

234

1

2

50oard

o. 3

12

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 is connected to the next EPC 50 via X3 on the I/O board.

The electric diagram below shows the connections.

Operator´s panel OPTransducer MT 50

I/O board

SattBus connected To the PC with REMINDTM program

12

34

EPC 50I/O board X3

12

SU no. 1

12

34

EPC 50I/O board X3

SU no. 2

12

12

12

34

EPCI/O b X3

SU n

12

493-1077-11 (0-3) 23

6 Interconnect several EPC50 units EPC 50 Service Guide

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 + but-ton.

24 493-1077-11 (0-3)

7 HELP Documentation

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

493107611 25

7 HELP Documentation REMIND™ EPC 50 Network User´s Manual

26 493107611 (3-1)

8 Troubleshooting the Network

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re

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 SattBunetwork.- Check the SattBus connections.- Check that the EPC units has started ais functioning in an appropriate way.

3. Is the system connected to some nodes not all? If yes:- Check that the LED “OMM” in the front of the PC board and the SattBus LED onthe EPC 50 I/O board (see figure on pag23) are flashing similarly on all EPC’s connected to the network. They must nobe off or steady lit.- Check the REMIND system setup. EacEPC system number must correspond tothe installation parameter IN5 value in thEPC50 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 aconnected to the network.

493107611 (3-1) 27

8 Troubleshooting the Network REMIND™ EPC 50 Network User´s Manual

e

e

d

d

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.

it n

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 thSattBus network. - Check the SattBus connections (see thsection on page 17).- Check that the EPC units are started anare functioning in an appropriate way.

3. Are the LEDs “TD Channel 1” and/or “RD Channel 1” flashing directly after thestart of communication? If no, the SBSUis not correctly connected to the PC. - Check that the channel plug is connecteto the SBSU Channel 1. - Check that the cable is connected to thappropriate 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 havedifferent 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 unare in correct positions (see the section opage 17).

28 493107611 (3-1)

REMIND™ EPC 50 Network User´s Manual 8 Troubleshooting the Network

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.

493107611 (3-1) 29

8 Troubleshooting the Network REMIND™ EPC 50 Network User´s Manual

30 493107611 (3-1)

9 Drawings and Figures

l

.

SattBus PC board and SattBus Serial Unit, SBSU

See the chapters ‘‘SattBus PC-board Description’’ on page 35 and ‘‘SattBus SeriaUnit, 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 mDB9 female and DB25 male connector.

493107611 (3-1) 31

9 Drawings and Figures REMIND™ EPC 50 Network User´s Manual

32 493107611 (3-1)

10 Parts List

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

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 492720202 SattBus PC board for ISA bus

4 490030701 Termination resistor, 100 ohm

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

493107611 (3-1) 33

10 Parts List REMIND™ EPC 50 Network User´s Manual

34 493107611 (3-1)

11 SattBus PC-board Description

X1

S5

S3

H2H1

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.

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

12

34

56

78

12

34

56

78

12

34

56

S2

S1

S4

X2

493107611 (3-1) 35

11 SattBus PC-board Description REMIND™ EPC 50 Network User´s Manual

e .

-7 -8 Note

OFF OFF

OFF OFF Default setting

OFF OFF

OFF OFF

OFF OFF

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.

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 generata reset pulse on its I/O-channel bus

S4 DIP Switch. S4 must have the following fixed setting (default setting from factory):S4-1 = OFFS4-2 = OFFS4-3 = OFFS4-4 = ONS4-5 = OFFS4-6 = OFF

Switch S1-Memory area in PC (hex)

-1 -2 -3 -4 -5 -6

D0000 ON ON ON ON OFF ON

D1000 OFF ON ON ON OFF ON

C8000 ON ON ON OFF ON ON

C6000 ON OFF OFF ON ON ON

C7000 OFF OFF OFF ON ON ON

36 493107611 (3-1)

REMIND™ EPC 50 Network User´s Manual 11 SattBus PC-board Description

Sat

tBus

cab

le

per

attBus PC-board.

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.

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 PC-board memory failures.

Jumper

34

21

X1 SattBuscable

34

21

X1Jumper

Jum

The SattBus cable ending in the SattBus PC-board.

The SattBus cable not ending in the S

100 ohm

Jumper

493107611 (3-1) 37

11 SattBus PC-board Description REMIND™ EPC 50 Network User´s Manual

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 493107611 (3-1)

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.

493107611 (3-1) 39

12 SattBus Serial Unit, SBSU Description REMIND™ EPC 50 Network User´s Manual

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

Hex. switches for filter addresses (under the cover)

Hex. switch for operating mode (under the cover)

Hex. switches for SattBus address (under the cover)

LED indicators

DIP switch for serial channel parameters (under the cover)

106 mm45

mm

Connector for serial channel No. 1

Screw terminals for SattBus

Screw terminals for power supply

120 mm

125

mm

138 mm

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

170

mm

32 m

m

40 493107611 (3-1)

REMIND™ EPC 50 Network User´s Manual 12 SattBus Serial Unit, SBSU Description

Colour

nel 1l 1

imer)

ctive

YellowYellowYellowYellowGreen

Red

YellowYellow

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

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 “Switchsettings”.

LED Function

TD CHANNEL 1RD CHANNEL 1TD CHANNEL 2RD CHANNEL 2POWER ONRUN/STOP

NODE ACTIVE

SB ACTIVE

Data are transmitted on chanData are received on channeNot usedNot usedThe unit is receiving powerThe processor is stopped (supervised by a watchdog tThe unit is taking part in theSattBus communicationSattBus communication is a

493107611 (3-1) 41


-

ect r.

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’’ onpage 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 connthe screen to the metal case of the connecto

Pin layout for the RS-232 channel:

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

Pin No. Control signal

3 TD Transmitted data

2 RD Received data

7 GND Signal ground

42 493107611 (3-1)


”

er

us l

B C D E F11 12 13 14 1527 28 29 30 3143 44 45 46 4759 60 61 62 6375 76 77 78 7991 92 93 94 95

107 108 109 110 111123 124 125 - -

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 tablebelow shows how to find the switch settingscorresponding to a decimal address.

Example: The “H” switch set to 4 and the “L” switch set to 2 means the hexadecimal numb42 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 SattBaddresses set by means of four hexadecimaswitches.

Low0 1 2 3 4 5 6 7 8 9 A

0 - - - - - 5 6 7 8 9 101 16 17 18 19 20 21 22 23 24 25 262 32 33 34 35 36 37 38 39 40 41 423 48 49 50 51 52 53 54 55 56 57 584 64 65 66 67 68 69 70 71 72 73 745 80 81 82 83 84 85 86 87 88 89 906 96 97 98 99 100 101 102 103 104 105 1067 112 113 114 115 116 117 118 119 120 121 122

High

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e

e

SattBus message with destination address Y

SattBus network No. 2

(hexadecimal)

(hexadecimal)

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.

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 fromthe table above.

Example: An SBSU in bridge configuration is to transmit messages from the SattBus sidwith destination addresses only in the range18–59.

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

SBSU No.2

Low filter addressHigh filter address

SattBus message with destination address X

SBSU No.1

Low filter addressHigh filter address

SattBus network No. 1

H

H

L

L

SW1

SW2

Low filter address: 18 (decimal) = 12

High filter address: 59 (decimal) = 3B

1 2

3 B

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4 5

N ON ONN ON ONN OFF ONN OFF ONFF ON OFFFF ON OFFN ON ONFF OFF ONFF ON OFFN ON ONFF ON ONFF OFF ONFF OFF ON

FF ON OFFN OFF OFF

FF ON ONFF ON ONFF OFF ONN ON OFF

N OFF OFFN OFF OFF

FF ON ONN ON OFF

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 tabbelow. The SBSU always uses one stop bit and 8 data bits.

Parameter selection 1 2 3

300 baud, no parity ON ON O300 baud, no parity, modem delay* OFF ON O300 baud, odd parity ON OFF O300 baud, odd parity, modem delay* OFF OFF O300 baud, even parity ON ON O300 baud, even parity, modem delay* OFF ON O600 baud, no parity ON OFF O600 baud, odd parity ON ON O600 baud, even parity ON OFF O1200 baud, no parity OFF OFF O1200 baud, no parity, modem delay* ON ON O1200 baud, odd parity OFF ON O1200 baud, odd parity, modem delay*

ON OFF O

1200 baud, even parity OFF OFF O1200 baud, even parity, modem delay*

ON ON O

2400 baud, no parity OFF ON O2400 baud, no parity, modem delay* ON OFF O2400 baud, odd parity OFF OFF O2400 baud, odd parity, modem delay*

ON ON O

2400 baud, even parity OFF ON O2400 baud, even parity, modem delay*

ON OFF O

4800 baud, no parity OFF OFF O4800 baud, odd parity OFF ON O

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,

d

N OFF OFFN OFF ONN ON OFFFF OFF OFF

, but for 300,

NNFF

4 5

• Switch 6 must be set to ON.

• Switch 7 specifies if “Redundancymode” should be used.

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

12.5.5 Default Switch Settings

The SBSU is delivered with the following default settings:

The hexadecimal switches (for Node identityFilter address and Mode) are all zero.

The serial channel parameters are 9600 bauwith no parity and normal mode.

4800 baud, even parity OFF OFF O9600 baud, no parity ON ON O9600 baud, odd parity ON OFF O9600 baud, even parity ON ON O

*. Use this selection when a modem is connected1200 and 2400 baudrate only.


Normal mode ON ON ORedundancy mode ON OFF OHost interface mode ON ON O


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12.6 Technical Specifications

Serial ChannelRS-485 or RS-232 data format, 1 stop bit, 8 data bits; selectable baud rate, parity and modem delay

SattBus NetworkToken passing, frequency shift keying at 62.5 kHz, 3 kilobytes/s effective transmission rate, up to 120 nodes, galvanic separation, non-polarized connection

SattBus CableSingle twisted pair (at least 3 twists/meter), unscreened, characteristic impedance 80–1Ω, area ≥0.20 mm2 (AWG 24) Note! Use the same type of cable in the entiSattBus installation.Suitable type of cable: Belden 8442External 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 lengtPermitted 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 Supply19–32 V DC

Power Consumption5 W

Cable for Power Supply3 × 1.5 mm2

Protection ClassIP40

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Ambient TemperatureNormal operation ±0 to +55 °CStorage –25 to +70 °C

Humidity10–95% relative humidity, non-condensing

Electrical EnvironmentFulfils ElectroMagnetic Compatibility, EMC, Directive 89/336 EEC

DimensionsH187 × W138 × D46 mm

Weight580 g

48 493107611 (3-1)

493107611

0101 Ver. (3-1)

user's manual for remind epc 50

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