RKC INSTRUMENT FAREX SR MINI SYSTEM Use and care manual

FAREX SR Mini SYSTEM
IMSRM04-E8
SRMini
SYSTEM
Communication
Instruction Manual
RKC INSTRUMENT INC.
®
FAREX

All Rights Reserved, Copyright 1994, RKC INSTRUMENT INC.

IMSRM04-E8 i-1
Thank you for purchasing the RKC instrument. In order to achieve maximum performance and ensure
proper operation of your new instrument, carefully read all the instructions in this manual. Please
place this manual in a convenient location for easy reference.
SYMBOLS
: This mark indicates important information on installation, handling and operating
procedures.
: This mark indicates supplemental information on installation, handling and
operating procedures.
: This mark indicates where additional information may be located.
z
An external protection device must be installed if failure of this instrument
could result in damage to the instrument, equipment or injury to personnel.
z
All wiring must be completed before power is turned on to prevent electric
shock, fire or damage to instrument and equipment.
z
This instrument must be used in accordance with the specifications to prevent
fire or damage to instrument and equipment.
z
This instrument is not intended for use in locations subject to flammable or
explosive gases.
z
Do not touch high-voltage connections such as power supply terminals, etc.
to avoid electric shock.
z
RKC is not responsible if this instrument is repaired, modified or
disassembled by other than factory-approved personnel. Malfunction can
occur and warranty is void under these conditions.
CAUTION
: This mark indicates precautions that must be taken if there is danger of electric
shock, fire, etc., which could result in loss of life or injury.
: This mark indicates that if these precautions and operating procedures are not
taken, damage to the instrument may result.
: This mark indicates that all precautions should be taken for safe usage.
WARNING
!
WARNING
!

IMSRM04-E8
i-2
zThis is a Class A instrument. In a domestic environment, this instrument may cause radio
interference, in which case the user may be required to take adequate measures.
zThis instrument is protected from electric shock by reinforced insulation. Provide
reinforced insulation between the wire for the input signal and the wires for instrument
power supply, source of power and loads.
zThis instrument is designed for installation in an enclosed instrumentation panel. All high-
voltage connections such as power supply terminals must be enclosed in the
instrumentation panel to avoid electric shock by operating personnel.
zAll precautions described in this manual should be taken to avoid damage to the
instrument or equipment.
zAll wiring must be in accordance with local codes and regulations.
zTo prevent instrument damage or failure, protect the power line and the input/output lines
from high currents with a protection device such as fuse, circuit breaker, etc.
zPrevent metal fragments or lead wire scraps from falling inside instrument case to avoid
electric shock, fire or malfunction.
zTighten each terminal screw to the specified torque found in the manual to avoid electric
shock, fire or malfunction.
zFor proper operation of this instrument, provide adequate ventilation for heat dispensation.
zDo not connect wires to unused terminals as this will interfere with proper operation of the
instrument.
zTurn off the power supply before cleaning the instrument.
zDo not use a volatile solvent such as paint thinner to clean the instrument. Deformation or
discoloration will occur. Use a soft, dry cloth to remove stains from the instrument.
zTo avoid damage to instrument display, do not rub with an abrasive material or push front
panel with a hard object.
NOTICE
zThis manual assumes that the reader has a fundamental knowledge of the principles of electricity,
process control, computer technology and communications.
zThe figures, diagrams and numeric values used in this manual are only for purpose of illustration.
zRKC is not responsible for any damage or injury that is caused as a result of using this instrument,
instrument failure or indirect damage.
zPeriodic maintenance is required for safe and proper operation of this instrument. Some
components have a limited service life, or characteristics that change over time.
zEvery effort has been made to ensure accuracy of all information contained herein. RKC makes no
warranty expressed or implied, with respect to the accuracy of the information. The information in
this manual is subject to change without prior notice.
zNo portion of this document may be reprinted, modified, copied, transmitted, digitized, stored,
processed or retrieved through any mechanical, electronic, optical or other means without prior
written approval from RKC.
CAUTION

IMSRM04-E8 i-3
CONTENTS
Page
1. SPECIFICATIONS ................................................................1
1.1 Control Unit .....................................................................................................1
1.2 OPM, OPM Z-191 and OPM Z-191 [CE/UL/CSA Conformed] ........................2
1.3 OPL, OPL [CE/UL/CSA Conformed] ...............................................................3
1.4 OPM-H ............................................................................................................4
1.5 Terminal Voltage and Signal Logic..................................................................5
2. CONNECTING.......................................................................6
2.1 Connection Block Diagram..............................................................................7
2.1.1 When connecting control unit with host computer directly.................................. 7
2.1.2 When using operation panel .............................................................................. 8
2.2 Connection Between the Control Unit and a Host Computer...........................9
2.2.1 When the dedicated cable is not used ............................................................... 9
2.2.2 When using the dedicated cable ......................................................................10
2.3 Connection Between the Operation Panel and a Host Computer..................11
2.3.1 OPL or OPL [CE/UL/CSA Conformed]..............................................................11
2.3.2 OPM or OPM Z-191 connection........................................................................14
2.3.3 OPM Z-191 [CE/UL/CSA Conformed] connection.............................................16
2.3.4 OPH Z-191 connection .....................................................................................18
3. SETTING FOR COMMUNICATION ....................................20
3.1 When Connecting Control Unit with Host Computer Directly ........................20
3.2 When Using Operation Panel........................................................................22
3.2.1 Host communication setting..............................................................................22
3.2.2 Between operation panel and control unit communication setting.....................23
3.2.3 Computer/Local transfer ...................................................................................24

IMSRM04-E8
i-4
Page
4. COMMUNICATION PROTOCOL .......................................25
4.1 Polling............................................................................................................25
4.1.1 Polling procedure..............................................................................................26
4.1.2 Polling procedure example (When the host computer requests data)...............29
4.2 Selecting........................................................................................................30
4.2.1 Selecting procedure..........................................................................................30
4.2.2 Selecting procedure (When the host computer sends data) .............................32
4.3 Communication Data Configuration ..............................................................33
4.4 Examples of Selecting and Polling Check Programs ....................................34
5. COMMUNICATION IDENTIFIERS .....................................38
5.1 List of Communication Identifiers ..................................................................38
5.2 Identifiers Function Explanation ....................................................................41
6. TROUBLESHOOTING .......................................................71
6.1 Troubleshooting.............................................................................................71
6.2 Error Code Descriptions (Identifier: ER)........................................................73
7. ASCII CODE TABLE ...........................................................74

IMSRM04-E8 1
1. SPECIFICATIONS
1.1 Control Unit
Communication interface: Based on RS-422A, EIA standard
Based on RS-232C, EIA standard
(Specify when ordering.)
Communications modes: 4-wire system, multi-drop connection (RS-422A)
Point-to-point connection (RS-232C)
Maximum connections: 16 units (RS-422A)
1 unit (RS-232C)
Synchronous method: Start/stop synchronous type
Communication speed: 2400 bps, 4800 bps, 9600 bps, 19200 bps (Any can be selected)
Data format: Start bit: 1
Data bit: 7 or 8
Parity bit: Without, Odd or Even
(Unused when data bit is 8)
Stop bit: 1
Protocol: Based on ANSI X3.28 subcategory 2.5, B1
Polling/selecting type
Error control: Vertical parity (When parity bit is selected)
Horizontal parity
Block length: 128 bytes or less
Data types: Text : ASCII code
Control codes : ENQ (05H), EOT (04H), STX (02H), ETB (17H),
ETX (03H), ACK (06H), NAK (15H)
Codes in brackets ( ) are in hexadecimal.
Time out time: 3 seconds
Unit address: 00 to 15
Communications content: Temperature measured value
Temperature set value,
Check of alarm state and setting of alarms
Data sending transfer time: 0 to 255 ms

1. SPECIFICATIONS
IMSRM04-E8
2
1.2 OPM, OPM Z-191 and
OPM Z-191 [CE/UL/CSA Conformed]
Communication interface: Based on RS-422A, EIA standard
Based on RS-485, EIA standard
Based on RS-232C, EIA standard
(Specify when ordering.)
Communications modes: 4-wire system, multi-drop connection (RS-422A)
2-wire system, multi-drop connection (RS-485)
Point-to-point connection (RS-232C)
Maximum connections: 16 units (RS-422A, RS-485)
1 unit (RS-232C)
Synchronous method: Start/stop synchronous type
Communication speed: 2400 bps, 4800 bps, 9600 bps, 19200 bps (Any can be selected)
Data format: Start bit: 1
Data bit: 7 or 8
Parity bit: Without, Odd or Even
Stop bit: 1 or 2
Protocol: Based on ANSI X3.28 subcategory 2.5, B1
Polling/selecting type
Error control: Vertical parity (When parity bit is selected)
Horizontal parity
Block length: 128 bytes or less
Data types: Text : ASCII code
Control codes : ENQ (05H), EOT (04H), STX (02H), ETB (17H),
ETX (03H), ACK (06H), NAK (15H)
Codes in brackets ( ) are in hexadecimal.
Time out time: 3 seconds
Unit address: 00 to 15
Communications content: Temperature measured value
Temperature set value
Check of alarm state and setting of alarms
Data sending transfer time: 0 to 300 ms (Setting every 3 ms)
Only OPM Z-191 [CE/UL/CSA Conformed]

1. SPECIFICATIONS
IMSRM04-E8 3
1.3 OPL, OPL [CE/UL/CSA Conformed]
Communication interface: Based on RS-422A, EIA standard
Based on RS-485, EIA standard
Based on RS-232C, EIA standard
(Specify when ordering.)
Communications modes: 4-wire system, multi-drop connection (RS-422A)
2-wire system, multi-drop connection (RS-485)
Point-to-point connection (RS-232C)
Maximum connections: 16 units (RS-422A, RS-485)
1 unit (RS-232C)
Synchronous method: Start/stop synchronous type
Communication speed: 2400 bps, 4800 bps, 9600 bps, 19200 bps (Any can be selected)
Data format: Start bit: 1
Data bit: 7 or 8
Parity bit: Without, Odd or Even
Stop bit: 1 or 2
Protocol: Based on ANSI X3.28 subcategory 2.5, B1
Polling/selecting type
Error control: Vertical parity (When parity bit is selected)
Horizontal parity
Block length: 128 bytes or less
Data types: Text: ASCII code
Control codes: ENQ (05H), EOT (04H), STX (02H),ETB (17H),
ETX (03H), ACK (06H), NAK (15H)
Codes in brackets ( ) are in hexadecimal.
Time out time: 3 seconds
Unit address: 00 to 15
Communications content: Temperature measured value
Temperature set value
Check of alarm state and setting of alarms
Data sending transfer time: 0 to 300 ms (Setting every 3 ms)

1. SPECIFICATIONS
IMSRM04-E8
4
1.4 OPM-H
Communication interface: Based on RS-422A, EIA standard
Based on RS-485, EIA standard
Based on RS-232C, EIA standard
(Specify when ordering.)
Communications modes: 4-wire system, multi-drop connection (RS-422A)
2-wire system, multi-drop connection (RS-485)
Point-to-point connection (RS-232C)
Maximum connections: 16 units (RS-422A, RS-485)
1 unit (RS-232C)
Synchronous method: Start/stop synchronous type
Communication speed: 2400 bps, 4800 bps, 9600 bps, 19200 bps (Any can be selected)
Data format: Start bit: 1
Data bit: 7 or 8
Parity bit: Without, Odd or Even
Stop bit: 1 or 2
Protocol: Based on ANSI X3.28 subcategory 2.5, B1
Polling/selecting type
Error control: Vertical parity (When parity bit is selected)
Horizontal parity
Block length: 128 bytes or less
Data types: Text: ASCII code
Control codes: ENQ (05H), EOT (04H), STX (02H), ETB (17H),
ETX (03H), ACK (06H), NAK (15H)
Codes in brackets ( ) are in hexadecimal.
Time out time: 3 seconds
Unit address: 00 to 15
Communications content: Temperature measured value
Temperature set value
Check of alarm state and setting of alarms

1. SPECIFICATIONS
IMSRM04-E8 5
1.5 Terminal Voltage and Signal Logic



RS-422A and RS-485
Name Mark state
(Stop bit and signal 1)
Space state
(Start bit and signal 0)
T (A)
Send data
T (B)
Voltage between T (A) and T (B) −2 V Voltage between T (A) and T (B) +2 V
R (A)
Receive data
R (B)
Voltage between R (A) and R (B) −2 V Voltage between R (A) and R (B) +2 V
Voltage between T (A) and T (B) is the voltage of T (A) to the T (B) terminal.
Voltage between R (A) and R (B) is the voltage of R (A) to the R (B) terminal.



RS-232C
Signal voltage Logic
+ 3V or more 0 (Space status)
- 3V or less 1 (Mark status)

6IMSRM04-E8
2. CONNECTING
Connect connectors correctly in the right position. If it is forcibly pushed in with pins in the
wrong positions, the pins may be bent resulting in instrument failure.
When connecting or disconnecting the connectors, do not force it too far to right and left or
up and down, but move it as straight as possible. Otherwise, the connector pins may be bent,
causing instrument failure.
When disconnecting a connector, hold it by the connector itself. Disconnecting connectors
by yanking on their cables can cause breakdowns.
In order to prevent malfunction, never touch the contact section of a connector with bare
hands or with hands soiled with oil or the like.
In order to prevent malfunction, connect cable connectors securely, then firmly tighten the
connector fastening screws.
In order to prevent damage to cables, do not bend cables over with excessive force.
If the instrument is easily affected by noise, use the ferrite core in the both ends of the cable
(nearest the connector).
To prevent electric shock or instrument failure, turn off the power before
connecting or disconnecting the instrument and peripheral equipment.
WARNING
!

2. CONNECTING
IMSRM04-E8 7
2.1 Connection Block Diagram
2.1.1 When connecting control unit with host computer directly
The communication interface for control unit are RS-232C and RS-422A. When using the RS-422A, a
maximum of 16 control units can be connected.
However, when connecting to the computer which only has a RS-232C driver, conversion of the
communication interface will be necessary.
Our recommended RS-232C/RS-422A converter are shown below:
RS-232C/RS-422A converter: COM-A
For details on the RS-232C/RS-422A converter, see the RS-232C/RS-422A converter
instruction manual.
RS-232C
When RS-232C is selected for the
control unit communications, only
one control unit may be connected.
RS-232C
RS-422A
Maximum of 16 units
RS-422A
Control unit Control unit
RS-232C/RS-422A
converter
Host computer
Host computer

2. CONNECTING
IMSRM04-E8
8
2.1.2 When using operation panel
The communication interface for operation panel are RS-232C, RS-422A and RS-485. When using
the RS-422A or RS-485, a maximum of 16 control units (OPC/OPC-H: 32 control units) can be
connected.
However, when connecting to the computer which only has a RS-232C driver, conversion of the
communication interface will be necessary.
RS-232C (Only one unit may be connected)
RS-422A
RS-422A
RS-422A
RS-422A
RS-422A
or
RS-485
RS-422A
or
RS-485
RS-422A
or
RS-485
RS-422A or
RS-485
RS-232C RS-422A
or
RS-485 RS-422A
RS-422A
Maximum of 16 units
Control unit
Control unit
Control unit
Control unit
Operation panel
Operation panel
Operation panel
Operation panel
Maximum of 8 units
Maximum of 8 units
Maximum of 8 units
Maximum of 8 units
RS-232C/RS-422A or
RS-232C/RS-485
converter
Host computer
Junction branch box
Junction branch box
Our recommended RS-232C/RS-422A or RS-232C/RS-485 converter and junction branch
boxes are shown below:
Converter: COM-A (RS-232C/RS-422A), COM-B (RS-232C/RS-485)
Junction branch box: BRA-100B-4 (RS-422A), BRA-100B-2 (RS-485)
For details on the RS-232C/RS-422A (or RS-232C/RS-485) converter and junction branch
boxes, see the each instruction manuals.

2. CONNECTING
IMSRM04-E8 9
2.2 Connection Between the Control Unit and a Host
Computer
2.2.1 When the dedicated cable is not used



RS-422A
R(A)
R(B)
SG
T(B)
T(A)
Shield
T(A)
T(B)
SG
T(B)
T(A)
Connection by the
modular connector
PCP module
Paired wire
Shielded twisted
pair wire
Host computer or
RS-232C/RS-422A converter
RS-422A



RS-232C
Shielded wire
SD
SG
RD
RS
CS
Not used
SD
SG
RD
Not used
Shield
Connection by the
modular connector
PCP module
*RS and CS should be shorted
inside the connector.
Host computer
RS-232C
*
The 6 pins type modular connector should be used.
(TM4P-66P to HEROSE ELECTRIC CO., LTD. or equivalent)

2. CONNECTING
IMSRM04-E8
10
2.2.2 When using the dedicated cable



RS-422A
RS-422A
Ferrite core
RS-232C
Connect to the modular connector
on the PCP module [COM.PORT1].
Control unit
RKC special cable type: W-BF-01-3000 (Sold separately)
[Standard cable length: 3m]
Host computer
Connect to the
communication connector
RS-232C/RS-422A converter
Connect to terminal
block
Connect according to the label names as they are without crossing
the wires.
R(A)
SG
T(A)
T(B)
R(B)
R(A)
SG
T(A)
T(B)
R(B)



RS-232C
D-SUB (25P type) modular
conversion connector (TM12RV-
64-H to HIROSE ELECTRIC CO.,
LTD. or equivalent.)
RKC special cable type: W-BF-02-3000 (Sold separately)
[Standard cable length: 3m]
RS-232C
Connect to the modular connector
on the PCP module [COM.PORT1].
Host computer
Connect to the
communication connector
Control unit
Ferrite core
We recommend to use the ferrite core (ZCAT1325-0530 to TDK Ltd. or equivalent) in the
both ends of the cable to connect the operation panel and host computer to decrease the
noise.

2. CONNECTING
IMSRM04-E8 11
2.3 Connection Between the Operation Panel and a Host
Computer
2.3.1 OPL or OPL [CE/UL/CSA Conformed] connection
Connect to the modular connector on
the oparation panel [COM.PORT].
Connect to the modular connector
on the PCP module [COM.PORT1].
Control unit
100 to 240 V AC [OPL-A ∗]
24 V DC [OPL-A ∗]
CE/UL/CSA Conformed
100 to 240 V AC,
24 V DC
[OPL-A
∗/CE]
Modular cable pin numbers
Control
unit
Operation
panel
1
to
6
1 to 6
RKC special cable type : W-BF-02-3000 (Sold separately)
[Standard cable length: 3m]
The cable type partially differs depending
on the cable length when ordering.
For the CE/UL/CSA approved instrument, install the ferrite cores attached to the operation
panel to both ends of the cable.

2. CONNECTING
IMSRM04-E8
12



RS-422A
Pin number and signal name
PinNo. Mark Name SignalDirection
Operation panel Host computer
2 T(A) Send data
6 T(B) Send data
5 SG Ground for signal
4 R(A) Receive data
8 R(B) Receive data
Contents of communication cable wiring



RS-485
Pin number and signal name
PinNo. Mark Name SignalDirection
Operation panel Host computer
2 T/R(A) Send data/Receive data
6 T/R(B) Send data/Receive data
5 SG Ground for signal
Contents of communication cable wiring
2
6
5
Shielded twisted
pair wire
(Maximum connections: 16 units) TXD and RXD : negative logic.
TXR/RXD
TXR/RXD
SG
T/R (A)
T/R (B)
SG
Paired wire
Host computer
Operation panel
2
6
5
4
8
Shielded twisted
pair wire
(Maximum connections: 16 units)
Paired wire Host computer
T (A)
T (B)
SG
R (A)
R (B)
TXD
TXD
SG
RXD
RXD
Operation panel
TXD and RXD : negative logic.

2. CONNECTING
IMSRM04-E8 13



RS-232C
Pin number and signal name
PinNo. Mark Name SignalDirection
Operation panel Host computer
3 SD (TXD) Send data
2 RD (RXD) Receive data
5 SG (GND) Ground for signal
Contents of communication cable wiring
*Short RS and CS
within connector
3
2
5
Host computer
Operation panel RS-232C
Shield wire
(Maximum connections: 1 unit)
SD (TXD)
RD (RXD)
SG (GND)
SD (TXD)
RD (RXD)
SG (GND)
RS (RTS)
CS (CTS)
*

2. CONNECTING
IMSRM04-E8
14
2.3.2 OPM or OPM Z-191 connection
1
13
1425
Connector used: SDBB-25S
(Manufactured by HIROSE ELECTRIC CO.,LTD.)
The customer must prepare the communication cables.
These cables (excluding RS-485) are also available from RKC.
Recommended connector type: SDBB-25P
(Manufactured by HIROSE ELECTRIC CO.,LTD.)
Specify when ordering
RS-422A
RS-485
RS-232C
Host computer
Connector pin numbers
Operation panel
Connect to the
host communication
connector [HOST]
Connect to the
communication
connector



RS-422A
Pin number and signal name
PinNo. Mark Name SignalDirection
Operation panel Host computer
2 T(A) Send data
14 T(B) Send data
8 SG Ground for signal
4 R(A) Receive data
16 R(B) Receive data
Contents of communication cable wiring
2
14
8
4
16
Shielded twisted
pair wire
(Maximum connections: 16 units)
Paired wire Host computer
T (A)
T (B)
SG
R (A)
R (B)
TXD
TXD
SG
RXD
RXD
Operation panel
TXD and RXD : negative logic.