RKC INSTRUMENT COM-JL User manual

Ethernet [Modbus/TCP] Communication Converter
IMR01Y25-E2
Thank you for purchasing this RKC product. 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.
This manual describes the handling precautions, mounting, wiring and specifications
only. For the basic operations, see COM-JL [For SRZ] Quick Instruction Manual
(IMR01Y29-E). For the detail handling procedures and various function settings,
please refer to separate COM-JL [For SRZ] Instruction Manual (IMR01Y37-E).
The above manuals can be downloaded from our website:
URL: http://www.rkcinst.com/english/manual_load.htm
Product Check
Safety Precautions
This product is intended for use with industrial machines, test and measuring
equipment.
(It is not designed for use with medical equipment and nuclear energy.)
This 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.
This 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, sourceof power and loads.
Be sure to provide an appropriate surge control circuit respectively for the following:
If input/output or signal lines within the building are longer than 30 meters.
If input/output or signal lines leave the building, regardlessthe length.
This 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 electricshock by operating personnel.
All precautions described in this manual should be taken to avoid damage to the
instrument or equipment.
All wiring must be in accordance with local codes and regulations.
To 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.
Prevent metal fragments or lead wire scraps from falling inside instrument case to
avoid electric shock, fire or malfunction.
Tighten each terminal screw to the specified torque found in the manual to avoid
electric shock, fire or malfunction.
For proper operation of this instrument, provide adequate ventilation for heat
dispensation.
Do not connect wires to unused terminals as this will interfere with proper
operation of the instrument.
Turn off the power supply before cleaning the instrument.
Do 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.
To avoid damage to instrument display, do not rub with an abrasive material or
push front panel with a hard object.
Do not connect modular connectors to telephone line.
NOTICE
This manual assumes that the reader has a fundamental knowledge of the
principles of electricity, process control, computer technologyand communications.
The figures, diagrams and numeric values used in this manual are only for purpose
of illustration.
RKC is not responsible for any damage or injury that is caused as a result of using
this instrument, instrument failure or indirect damage.
RKC is not responsible for any damage and/or injury resulting from the use of
instruments made by imitating this instrument.
Periodic maintenance is required for safe and proper operation of this instrument.
Some components have a limited service life, or characteristics that change over
time.
Every 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.
No 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.
1. MOUNTING
1.1 Mounting Cautions
(1) This instrument is intended to be used under the following environmental conditions.
(IEC61010-1) [OVERVOLTAGE CATEGORYII,POLLUTION DEGREE2]
(2) Use this instrument within the following environment conditions.
Allowable ambient temperature: 10 to 50 C
Allowableambient humidity: 5 to 95 %RH
(Absolute humidity: MAX. W. C 29.3 g/m3dry air at 101.3 kPa)
Installation environment conditions: Indoor use
Altitude up to 2000 m
(3) Avoid the following conditions when selecting the mounting location:
Rapid changes in ambient temperature which may cause condensation.
Corrosive or inflammable gases.
Direct vibration or shock to the mainframe.
Water, oil, chemicals, vapor or steam splashes.
Excessive dust, salt or iron particles.
Excessive induction noise, static electricity, magnetic fields or noise.
Direct air flow from an air conditioner.
Exposure to direct sunlight.
Excessive heat accumulation.
(4) Take the following points into consideration when mounting this instrument.
Ensure at least 50 mm space on top and bottom of the instrument for maintenance and
environmental reasons.
Do not mount this instrument directly above equipment that generates large amount of
heat (heaters, transformers, semi-conductor functional devices, large-wattage resistors).
If the ambient temperature rises above 50 C, cool this instrument with a forced air fan,
cooler, or the like. However, do not allow cooled air to blow this instrument directly.
In order to improve safety and the immunity to withstand noise, mount this instrument as
far away as possible from high voltage equipment, power lines, and rotating machinery.
High voltage equipment: Do not mount within the same panel.
Power lines: Separate at least 200 mm.
Rotating machinery: Separate as far as possible.
(5) This instrument is permanently connected to equipment, please take thefollowing points.
A switch or circuit-breaker shall be included in the building installation.
It shall be in close proximity to the equipment and within easy reach of the operator.
It shall be marked as the disconnecting device for the equipment.
1.2 Dimensions
330 109.5
125
78
5
(Unit: mm)
1.3 DIN rail Mounting
Mounting procedures
1. Pull down the mounting bracket at the bottom of the instrument (A). Attach the
hooks on the top of the instrument to the DIN rail and push the lower section into
place on the DIN rail (B).
2. Slide the mounting bracket up to secure the instrument to the DIN rail (C).
Removing procedures
Pull down a mounting bracket with a blade screwdriver (A). Lift the instrument from
bottom, and take it off (B).
1.4 Panel Mounting
Mounting procedures
1. Pull down the mounting bracket (A) until locked and that a mounting hole appears.
2. Prepare one mounting bracket per instrument (B) sold separately (KSRX-55) and
then insert it in the rear of the terminal board at top of the instrument until locked
but a mounting hole does not disappear.
3. Mount each module directly on the panel with screws which are inserted in the
mounting holes of the top and bottom mounting brackets.
Recommended tightening torque: 0.3 Nm (3 kgfcm)
The customer needs to provide the M3 size screws. Select the screwlength
that matches the mounting panel.
(A) Pull down
(B) Insert
Mounting bracket
(Sold separately)
(KSRX-55)
Mounting
holes
Mounting dimensions
130.5 0.2
M3
(Unit: mm)
2. WIRING
2.1 Wiring Cautions
To avoid noise induction, keep communication signal wire away from instrument
power line, load lines and power linesof other electric equipment.
If there is electrical noise in the vicinity of the instrument that could affect
operation, use a noise filter.
Shorten the distance between the twisted power supply wire pitches to
achieve the most effective noise reduction.
Always install the noise filter on a grounded panel. Minimize the wiring
distance between the noise filter output and the instrument power supply
terminals to achieve the most effective noise reduction.
Do not connect fuses or switches to the noise filter output wiring as this will
reduce the effectiveness of the noise filter.
Power supply wiring must be twisted and have a low voltage drop.
For an instrument with 24 V power supply, supply power from a SELVcircuit.
A suitable power supplyshould be considered in the end-use equipment. The
power supply must be in compliance with a limited-energy circuits (maximum
available current of 8 A).
Use the solderless terminal appropriate to the screw size (M3).
2.2 Terminal Configuration

24 V
DC
12
9 8
FG
Controller
communication
T/R(B)
T/R(A)
RS-485
1
5SG 4
Upper-side
terminal
Lower-side
terminal
Power supply Ground
2 1
7 6 5 4
14 13 12
11 10 9 8
3
: The part of internal wiring
As controller communication terminal Nos. 1, 4 and 5 are internally connected
to terminal Nos. 3, 6and 7, any terminals can be used.
As ground and power supply terminal Nos. 8, 9 and 12 are internally
connected to terminal Nos. 10, 11 and 14, any terminals can be used.
Terminal No. 2 and No. 13 is not used.
(Continued on the next page )
CO
M
-
JL
COM-JL [For SRZ] Installation Manual (IMR01Y25-E2).........................................1
COM-JL [For SRZ] Quick Instruction Manual (IMR01Y29-E)..............................1
COM-JL [For SRZ] Communication Data List (IMR01Y33-E).............................1
All Rights Reserved, Copyright 2007, RKC INSTRUMENT INC.
(B) Push
Mounting
bracke
t
DIN rail
(A) Pull down (C) Locked
(A) Pull down
(B) Lift and
take off
5.9 mm or less
3.2 mm or more
Recommended tightening torque:
0.4 Nm (4 kgfcm)
An external protection device must be installed if failure of this instrument
could result in damage to the instrument, equipment or injury to personnel.
All wiring must be completed before power is turned on to prevent electric
shock, fire or damage to instrument and equipment.
This instrument must be used in accordance with the specifications to
prevent fire or damage to instrument and equipment.
This instrument is not intended for use in locations subject to flammable or
explosive gases.
Do not touch high-voltage connections such as power supply terminals,
etc. to avoid electric shock.
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.
!WARNING
CAUTION
To prevent electric shock or instrument failure, always turn off the
power before mounting or removing the instrument.
!WARNING
To prevent electric shock or instrument failure, do not turn on the
power until all the wiring is completed.
!WARNING
Installation
Manual
[For SRZ]

The first edition: APR. 2007 [IMQ00]
The second edition: DEC. 2015 [IMQ00]
®
RKC INSTRUMENT INC.
HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN
PHONE: [phone] ([phone]) E-mail: [e-mail]
FAX: [phone] ([phone]) DEC. 2015
Ethernet is a registered trademark of Xerox Corp.
Modbus is a registered trademark of Schneider Electric
Company names and product names used in this manual are the trademarks or registered
trademarks of the respective companies.
2.3 Connection to Ethernet
Pin layout of connector
Pin layout
Modular connecto
r
for Ethernet
RJ-45
1
8
Pin No. Signal name Symbol
1 Send data TX
2 Send data TX
3 Receive data RX
4 Unused 
5 Unused 
6 Receive data RX
7 Unused 
8 Unused 
The cable must be provided by the customer.
Used cable: The cable is based on the 10BASE-T or the
100BASE-TX standard of Ethernet.
Used connector: RJ-45 type
Wiring example
When directly connected to client
Use a cross cable when directly connected to the client (such as computer).
TX
TX
RX
RX
TX
TX
RX
RX
Computer COM-JL
Cross cable
When use network hub
Use straight cables when connected to the network hub.
Network hub
TX
TX
RX
RX
TX
TX
RX
RX
TX
TX
RX
RX
TX
TX
RX
RX
Computer COM-JL
Straight cable Straight cable
Cross cables may be used depending on the connecting device used.
Therefore, follow the instructions for the respective device.
2.4 Connection to the Controllers
Conduct wiring between the COM-JLand controller (SRZ) as shown in the following.
Connection diagram
RS-485



Paired
wire
Shielded twisted
pair wire
Controller (SRZ)
Up to 16 Z-TIO modules can be connected.
R2
R2: Termination resistor for external
connection (120
1/2 W)
3
4
5SG
COM-JL
SG
1
5
4
R1
Terminal block
T/R (A)
T/R (B)
3
4
5SG
T/R (B)
T/R (A)
T/R (B)
T/R (A)
Z-TIO module
Z-TIO module
The maximum number of SRZ modules (including other function modules) on the same
communication line is 31.
Connected by
the internal
communication
line
R1: Internal termination resistor
(Example: 120
1/2 W)
The cable must be provided by the customer.
The termination resistor existing within the COM-JL can be connected or
disconnected by the switch. (Factory set value: Termination resistor connected)
2.5 System Configuration Example
When directly connected to client
Power supply (24 V DC)
Ethernet
Computer
(Client)
Ethernet
[Modbus/TCP]
communication
converter COM-JL
(Server)
Controller
communication
(RS-485: Modbus)
SRZ unit
21 16 17 30 31
Internal communication line (RS-485)
Z-DIO module
Module
(Controller)
address Z-TIO module
When use network hub
Ethernet
Network hub
Ethernet
Power supply (24 V DC)
Computer
(Client)
Ethernet
[Modbus/TCP]
communication
converter COM-JL
(Server)
Controller
communication
(RS-485: Modbus)
SRZ unit
21 16 17 30 31
Internal communication line (RS-485)
Z-DIO module
Module
(Controller)
address Z-TIO module
The data request side (such as computer) is called “client” and the data
response (supply) side (COM-JL) is called “server.”
Basically, one client corresponds to one server (COM-JL) (i.e. one to one).
However, one client can communicatewith two or more servers depending
on the program on the client side, but two or more clients cannot
communicate with one server.
3. SPECIFICATIONS
Ethernet communication
Physical layer: Ethernet
10BASE-T/100BASE-TX automatic recognition
Application layer: Modbus/TCP
Communication data: Based on Modbus message format
Connector type: RJ-45
Controller communication
Interface: Based on RS-485, EIA standard
Protocol: Modbus-RTU
Communication speed: 9600 bps, 19200 bps, 38400 bps
Data bit configuration: Data 8-bit, Without parity, Stop 1-bit
Maximum connections: 31 controllers * (SRZ modules)
* A combined total of up to 31 Z-TIO and Z-DIO modules can be
connected in the SRZ.
However, the maximum joinable number of functional modules of the
same type is 16.
General specifications
Power supply voltage: 24 V DC
Power supply voltage range:
21.6 to 26.4 V DC
Current consumption: 110 mA max.
Allowable ambient temperature:
10 to 50 C
Allowable ambient humidity:
5 to 95 %RH
(Absolute humidity: MAX.W.C 29.3 g/m3dry air at 101.3 kPa)
Installation environment conditions:
Indoor use
Altitude up to 2000 m
Weight: Approx. 180 g
Standard
Safety standard: UL: UL61010-1
cUL: CAN/CSA-C22.2 No.61010-1
CE marking: LVD: EN61010-1
EMC: EN61326-1
RCM: EN55011
4. MODEL CODE
COM-JL-1 02
(1) (2)
(1) Communication type
1: Modbus/TCP
(2) Corresponding to the RKCcontroller
02: SRZ
*