ES-7803-BC Rev.0

R7M-RR8C

Remote I/O R7 Series

MODBUS I/O MODULE

(remote control relay control, 8 points, independent output common, 115.2 kbps)
Functions & Features
• 8 points remote control relay control module for Modbus
• Extension module can be connected

MODEL:R7M-RR8C-[1][2]

ORDERING INFORMATION

• Code number: R7M-RR8C-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R7M-RR8C-AR/Q)
• Specify the specification for option code /Q
(e.g. /C01/SET)

I/O TYPE

RR8C: Remote control relay control, 8 points
(independent output common)

[1] POWER INPUT

DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
Universal
AR: 24 V AC/24 V DC (universal)
(Operational voltage range 24 V AC±10 %, 50 - 60 Hz /
24 V DC±10 %, ripple 10 %p-p max.)

[2] OPTIONS

blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
EX-FACTORY SETTING
/SET: Preset according to the Ordering Information Sheet
(No. ESU-7803-T)

RELATED PRODUCTS

• PC Configurator cable (model: MCN-CON or COP-US)
• PC configurator software (model: R7CON)
Downloadable at our web site.
• Discrete input extension module (model: R7M-EAx)
• Discrete output extension module (model: R7M-ECx)

RECOMMENDED PRODUCTS (OPERATION CHECKED)

Remote control relay:
BR-12D, BR-22D (Mitsubishi Electric)
WR6165 (Panasonic)
Remote control transformer:
BRT-10B, BRT-20B (Mitsubishi Electric)
WR2301 (Panasonic)
Remote control switch
WR8501 (Panasonic)

GENERAL SPECIFICATIONS

Connection: M3 separable screw terminal (torque 0.5 N·m)
Solderless terminal: Refer to the drawing at the end of the section.
Recommended manufacturer: Japan Solderless Terminal MFG. Co., Ltd., Nichifu Co., Ltd.
Applicable wire size: 0.25 to 1.65 mm² (AWG 22 to 16)
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (gray)
Isolation: Output 0 to output 1 to output 2 to output 3 to output 4 to output 5 to output 6 to output 7 to Modbus or FG to power
Output data length: Selectable between 8-bit (*) and 16-bit with the front DIP switch
(*) Factory default setting
Extension: No extension (*), Discrete input 8 or 16 points, Discrete output 8 or 16 points
Selectable with the front DIP SW
(*) Factory default setting
Status indicator LEDs: PWR, RUN, ERR, SD, RD
(Refer to the instruction manual)
I/O status indicator: Feedback input status turns on with the input supplied.
Output status LED turns on with the output ON.
Configurator connection: 2.5 dia. miniature jack

■Recommended solderless terminal

MODBUS COMMUNICATION

Standard: Conforms to TIA/EIA-485-A
Transmission distance: 500 meters max.
Transmission media: Shielded twisted-pair cable
(CPEV-S 0.9 dia.)
Communication parameter: With Configurator Software (model: R7CON)
• Data Mode: RTU (default) or ASCII
• Parity: NONE (default), ODD or EVEN
• Data bit: 8: RTU (default), 7: ASCII
• Stop bit: 1 or 2 (default)
Baud rate setting: With rotary switch
115.2 kbps, 57.6 kbps, 38.4 kbps (default), 28.8 kbps,
19.2 kbps, 14.4 kbps, 9600 bps, 4800 bps, 2400 bps,
1200 bps
Node address setting: 1 - 99 (with rotary switch) (factory default setting: 00)
Terminating resistor: Built-in (Selected with the DIP SW; factory setting: disabled)

OUTPUT SPECIFICATIONS

Common: 1 common per 1 point
Maximum outputs applicable at once: No limit
Pulse output time: 100 msec.
Rated load voltage: 24 V AC ±10 % (supplied by the remote control transformer)
Load voltage frequency: 50 / 60 Hz

INSTALLATION

Current consumption
•AC: Approx. 140 mA
•DC: Approx. 60 mA
Operating temperature: -10 to +55°C (14 to 131°F)
Storage temperature: -20 to +65°C (-4 to +149°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Atmosphere: No corrosive gas or heavy dust
Mounting: DIN rail (35 mm rail)
Weight: 200 g (0.44 lb)

PERFORMANCE

Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute (output to Modbus or FG to power)
500 V AC @ 1 minute (output 0 to output 1 to output 2 to output 3 to output 4 to output 5 to output 6 to output 7)