Ethernet
Communication Converter
IMR02E13-E1
Thank you for purchasing this RKC product. In order to achieve maximum performance and
ensure proper operation of the instrument, carefully read all the instructions in this manual.
Please place the manual in a convenient location for easy reference.
This manual describes the mounting, wiring and specifications only.
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 plant.)
In a domestic environment, this instrument may cause radio interference, in which case the
user may be required to take additional measures.
Provide reinforced insulation between the wire for the input signal and the wires for instrument
power supply, source of 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, regardless the 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 electric shock to operating personnel.
All precautions described in this manual should be taken to avoid damage to the instrument or
equipment.
If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
All wiring must be in accordance with local codes and regulations.
To prevent instrument damage as a result of failure, protect the power line and the
input/output lines from high currents with a suitable overcurrent protection device with
adequate breaking capacity such as a fuse, circuit breaker, etc.
A malfunction in this product may occasionally make control operations impossible or prevent
alarm outputs, resulting in a possible hazard. Take appropriate measures in the end use to
prevent hazards in the event of malfunction.
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 dissipation.
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 may occur. Use a soft, dry cloth to remove stains from the instrument.
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 technology and communications.
The figures, diagrams and numeric values used in this manual are only for explanation
purpose.
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. OUTLINE
COM-ML-1 [For SRZ] (hereafter called COM-ML) is communication converter to connect the RKC module
type controller SRZ to the Ethernet [Modbus/TCP or PLC communication (MAPMAN)]. Multi-zone
temperature control system can be easily achieved by connecting functional modules (Z-TIO, Z-DIO
and Z-CT modules) of SRZ to COM-ML. Host communication (RKC communication, Modbus) is also
possible. The combination of COM-ML and functional module of SRZ is called an SRZ unit.
2. PARTS DESCRIPTION
Mainframe
Indication lamp
FAIL/RUN
[Green
or
Red]
When normal:
A green lamp is on (RUN)
During setting of default IP address setting: A green lamp flashes (RUN)
Self-diagnostic error (Recoverable fault): A green lamp flashes (FAIL)
Self-diagnostic error (Major fault):
A red lamp is on (FAIL)
RX/TX
[Green] During host communication data send and receive: Turns on
NS (Network status)
[Green
or
Red]
No power or no IP address:
Turns off
In Process Active or Idle state:
A green lamp is on
(The green lamp flashes during the PLC communication)
Waiting for connection:
A green lamp flashes
Duplicate IP address, or FATAL error:
A red lamp is on
Process Active Timeout:
A red lamp flashes
Link/Activity
(Port 1/Port 2)
[Green
and
Yellow]
No link, no activity:
Turns off
Link established, 100 Mbps:
A green lamp is on
Activity, 100 Mbps:
A green lamp flickering
Link established, 10 Mbps:
A yellow lamp is on
Activity, 10 Mbps:
A yellow lamp flickering
MS (Module status)
[Green
or
Red]
No power:
Turns off
Normal operation:
A green lamp is on
Major fault:
A red lamp is on
Recoverable fault:
A red lamp flashes
Communication port (modular connector) and communication connector
COM. PORT
Use to connecting the Operation panel or Host computer.
[RS-485
or
RS-422A]
Loader communication
connector
Use to connecting the communication converter and personal computer
when loader communication is performed.
Ethernet connector
(Port 1/Port 2)
Use to connecting the Ethernet.
Switch
Host communication
address setting switch
Sets unit address for host communication.
DIP switch
Sets communication speed and communication protocol corresponding
to host communication.
Sets DIP switch setting validity/invalidity.
Sets the default IP address settings.
Base
3. MOUNTING
3.1 Mounting Cautions
(1) Use this instrument within the following ambient temperature and ambient humidity.
Allowable ambient temperature:
10 to
50
C
Allowable ambient humidity:
5 to 95 %RH
(Absolute humidity: MAX. W. C 29.3 g/m
3
dry air at 101.3 kPa)
Installation environment conditions: Indoor use,
Altitude up to 2000 m
(2) 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.
(3) Mount this instrument in the panel considering the following conditions:
Provide adequate ventilation space so that heat does not build up.
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 the 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. Cooled air should not blow directly on this instrument.
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.
For correct functioning mount this instrument in a horizontal position.
Be sure the COM-ML and function modules are joined when using them.
Top
Bottom
(4) If this instrument is permanently connected to equipment, it is important to include a switch or
circuit-breaker into the installation. This should be in close proximity to the equipment and within
easy reach of the operator. It should be marked as the disconnecting device for the equipment.
3.2 Joining Each Module
Before joining the COM-ML and function modules, use the DIP switch to make the
communication settings. For the setting procedure, refer to COM-ML-1 [For SRZ]
Quick Instruction Manual (IMR02E14-E
).
The maximum number of function modules (Z-TIO, Z-DIO and Z-CT) described in the following can
be joined per COM-ML. For details on joining function modules with the COM-ML, refer to the
Z-TIO
INSTRUCTION MANUAL (IMS01T01-E
)
.
When joining function modules of the same type:
Up to 16 modules
When joining function modules of two or more different types: Up to 30 modules
(However, the maximum joinable number of function modules of the same type is 16.)
[Example] When the Z-TIO-A/B and Z-DIO-A modules are joined
SRZ unit
16 Z-TIO-A/B modules
COM-ML
Function modules: Up to 30 modules
14 Z-DIO-A modules
When the number of correspondence channels is specified using the model code, only the
amount of data corresponding to the specified number of channels can be sent or received.
(PLC communication specification only)
The number of the
correspondence channels
Z-TIO module
Z-DIO module
64 channels
64 channels
(Up to 16 modules) *
128 channels
(Up to 16 modules) *
48 channels
48 channels
(Up to 12 modules) *
96 channels
(Up to 12 modules) *
32 channels
32 channels
(Up to 8 modules) *
64 channels
(Up to 8 modules) *
16 channels
16 channels
(Up to 4 modules) *
32 channels
(Up to 4 modules) *
*
The number indicated in parentheses is the maximum joinable number per module when
the indicated number of correspondence channels is specified. The amount of data that
can be sent or received does not increase even when modules exceeding the maximum
number are joined.
3.3 Dimensions
76.9
30 6.7
10
0
5
4.7
(Unit: mm)
Procedure for mounting or removing
The procedure for mounting or removing the COM-ML is the same as that of the function module
(Z-TIO, Z-DIO or Z-CT). Both DIN rail mounting and screw mounting are available.
For the mounting or removing, refer to the
Z-TIO INSTRUCTION MANUAL (IMS01T01-E
)
.
4. WIRING
4.1 Wiring Cautions
To avoid noise induction, keep communication signal wire away from instrument power line,
load lines and power lines of 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 input, supply power from “SELV” circuit defined as
IEC 60950-1.
A suitable power supply should 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).
Supply the power to only one of the joined modules. When power is supplied to any one of
the joined modules, all of the joined modules will receive power.
Select the power capacity which is appropriate for the total power consumption of all joined
modules (including COM-ML) and the initial current surge when the power is turned on.
Power consumption (at maximum load): 120 mA max. (at 24 V DC)
Rush current: 12 A or less
When connecting the wiring to the terminals on the base, use the specified solderless
terminals. Only these specified solderless terminals can be used due to the insulation
between the terminals.
Screw Size:
Power supply terminals: M3
7 (with 5.8
5.8 square washer)
Recommended tightening torque: 0.4 N
･
m (4 kgf
･
cm)
Applicable wire: Solid/twisted wire of 0.25 to 1.65 mm
2
Specified solderless terminal:
Manufactured by J.S.T MFG CO., LTD.
Circular terminal with isolation V1.25
MS3
(M3 screw, width 5.5 mm, hole diameter 3.2 mm)
Make sure that during field wiring parts of conductors cannot
come into contact with adjacent conductive parts.
4.2 Terminal Configuration
3 4 5
2
1
1
2
24 V DC
+
Power supply
terminals
Supply the power to only one of the joined
modules or COM-ML.
When power is supplied to any one of the
joined modules or COM-ML, all of the joined
modules and COM-ML will receive power.
Terminals 3, 4 and 5
(Usage is prohibited.)
Lower part of the base
(Unit: mm)
50 mm or more
Depth for communication cables
mounting
Space for communication cables must
be considered when installing
Space required between each
module vertically
When the module is mounted on the
panel, allow a minimum of 50 mm at the
top and bottom of the module to attach
the module to the mainframe.
Communication cable
Approx. 50
76.9
Loader
communication
connector
Indication lamp RX/TX
Indication lamp FAIL/RUN
Host communication
address setting switch
Communication port
COM. PORT
Indication lamp Link/Activity (Port 1)
Ethernet connector
(Port 1)
Left side view
DIP switch
Front view
Indication lamp MS
Indication lamp NS
Indication lamp Link/Activity (Port 2)
Ethernet connector
(Port 2)
COM-ML
FAIL/RUN
LO
AD
E
R
RX/TX
NS
M
S
M
O
DB
US
/T
CP
Ethernet
Ethernet
Communication Converter
COM-ML-1
SRZ unit
Host
computer
Z-TIO, Z-DIO and Z-CT modules
RKC communication
Modbus
RS-485
RS-422A
COM-ML-1 [For SRZ] Installation Manual (IMR02E13-E
) .................................................. 1
COM-ML-1 [For SRZ] Quick Operation Manual (IMR02E14-E
)......................................... 1
COM-ML-1 [For SRZ] Host Communication Data List (IMR02E15-E
) .............................. 1
COM-ML-1 [For SRZ] PLC Communication Data List (IMR02E16-E
) ............................... 1
All Rights Reserved, Copyright
2018, RKC INSTRUMENT INC.
COM-ML-1
Installation
Manual
[For SRZ]
To prevent electric shock or instrument failure, always turn off the power
before mounting or removing the instrument.
To prevent electric shock or instrument failure, do not turn on the power
until all the wiring is completed. Make sure that the wiring has been
properly made before applying power to the instrument.
5.5 MAX
3.2 MIN
9.0 mm
5.6 mm
5.0
For detailed handling procedures and various function settings, refer to
separate
COM-ML-1 [For SRJ] Instruction Manual (IMR02E17-E
)
.
The manual can be downloaded from the official RKC website:
http://www.rkcinst.com/english/manual_load.htm
Joint connector
Used to mechanically and
electrically connect
each function module.
Power supply terminals
These are terminals to supply
power to the COM-ML and
joined function modules.
Terminal 3, 4 and 5
These terminals cannot be
used for the COM-ML.
(Usage is prohibited.)
Mounting bracket
Used to fix the COM-ML on
DIN rails.
Mounting holes (M3 screw)
Holes for screws to fix the base
to a panel, etc.
Customer must provide the M3
screws.
1 2
3 4 5
To prevent injury to persons, damage to the instrument and the
equipment, a suitable external protection device shall be required.
All wiring must be completed before power is turned on to prevent
electric shock, fire or damage to the instrument and the equipment.
This instrument must be used in accordance with the specifications to
prevent fire or damage to the instrument and the 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
may occur and warranty is void under these conditions.
