R7M MODBUS I/O MODULE

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ES-7803 Rev.33

R7M

Remote I/O R7 Series

MODBUS I/O MODULE

ORDERING INFORMATION

• Basic module: R7M-[1]-[2][3]
Specify a code from below for each of [1] through [3].
  (e.g. R7M-DC16A-R/UL)
• Specify the specification for option code /Q
  (e.g. /C01/SET)

• Extension module: R7M-[1][2]
Specify a code from below for each of [1] and [2].
  (e.g. R7M-EC16A/UL)
• Specify the specification for option code /Q
  (e.g. /C01)

BASIC MODULE: R7M–[1]–[2][3]

[1] I/O TYPE

DA16: Discrete input, 16 points
DA16F: Discrete input, 16 points
(115.2 kbps, Option /UL Not selectable)
(Terminating resistor incorporated)
DC16A: NPN transistor output, 16 points
DC16B: PNP transistor output, 16 points
DAC16C: NPN discrete input &
NPN transistor output, 8 points each
(115.2 kbps, option /UL Not selectable)
(Terminating resistor incorporated)
DAC16D: PNP discrete input &
PNP transistor output, 8 points each
(115.2 kbps, option /UL Not selectable)
(Terminating resistor incorporated)
DC8C: Relay contact output, 8 points
(Option /UL Not selectable)
(Not usable with ‘extension’ modules)
DC4G: Relay c contact output, 4 points
(115.2 kbps, Option /UL Not selectable)
(Not usable with ‘extension’ modules)
(Terminating resistor incorporated)
RR8: Remote control relay control, 8 points
(115.2 kbps, CE not available, option /UL Not selectable)
(Terminating resistor incorporated)
SV4: DC voltage/current input (10 V / 20 mA), 4 points
TS4: Thermocouple input, 4 points
RS4: RTD input, 4 points (Option /UL Not selectable)
MS4: Potentiometer input, 4 points (Option /UL Not selectable)
CT4E: AC current input, 4 points,
Clamp-on current sensor CLSE use
(Option /UL Not selectable)
PA8: Totalized pulse input, 8 points,
(115.2 kbps, CE not available, option /UL Not selectable)
(Terminating resistor incorporated)
YV2: DC voltage output, 2 points
YS2: DC current output, 2 points

[2] POWER INPUT

DC power
R: 24 V DC
(Operational voltage range: ±10 %; ripple 10 %p-p max.)
Universal
AR: 24 V AC/DC (Only for R7M-PA8 and RR8)
(Operational voltage range: ±10 %; ripple 10 %p-p max.)

[3] OPTIONS

Standards & Approvals
blank: CE marking (Refer I/O TYPE code for exception)
/UL: UL approval, CE marking
Other Options
blank: none
/Q: Option other than the above (specify the specification)
(UL not available)

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-x)

EXTENSION MODULE: R7M–[1][2]

[1] I/O TYPE

EA8: Discrete input, 8 points
(Option /UL Not selectable)
EA16: Discrete input, 16 points
EC8A: NPN transistor output, 8 points
(Option /UL Not selectable)
EC16A: NPN transistor output, 16 points
EC8B: PNP transistor output, 8 points
(Option /UL Not selectable)
EC16B: PNP transistor output, 16 points
EC8C: Relay contact output, 8 points
(CE not available. Option /UL Not selectable)

[2] OPTIONS

STANDARDS & APPROVALS
blank: CE marking (Refer I/O TYPE code for exception)
/UL: UL approval, CE marking
blank: none
/Q: Option other than the above (specify the specification)
(UL not available)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

FUNCTIONS & FEATURES

The R7M interfaces analog and discrete I/O signals with a PC via Modbus.
A ‘basic’ module can be attached with an ‘extension’ module.
(R7M-DC8C and R7M-DC4G can not be attached with an ‘extension’ module.)
By combining two modules, single station can handle mixed analog and discrete signals, 32-point discrete inputs, 32-point discrete outputs, 16-point discrete I/Os and other combinations of signals.
Input sensor type (thermocouple, RTD) and range can be selected with the front DIP switches for all channels.
In order to set different selections for individual channels, zero/span adjustments, scaling and temperature unit, use the PC Configurator Software (model: R7CON)

RELATED PRODUCTS

• PC configurator software (model: R7CON)
Downloadable at our web site.
A dedicated cable is required to connect the module to the PC. Please refer to the internet software download site or the users manual for the PC configurator for applicable cable types.
• Clamp-on current sensor (model: CLSE)
For R7M-CT4E, the clamp-on current sensors must be ordered separately. Required number depends upon the channel number.

PACKAGE INCLUDES...

• Terminating resistor (110 Ω, 0.25 W)
(Not provided for models terminating resistor incorporated)

GENERAL SPECIFICATIONS

• Common Specifications
Power input:
24 V AC ±10 % (50 / 60 Hz)
24 V DC ±10 %; ripple 10 %p-p max.
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @1 minute
(between isolated circuits)
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Atmosphere: No corrosive gas or heavy dust
Storage temperature: -20 to +65°C (-4 to +149°F)
Mounting: DIN rail (35 mm wide)
Connection: M3 separable screw terminals
(torque 0.5 N·m)
Screw terminal material: Nickel-plated steel
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 (AWG22 to 16)
Housing material: Flame-resistant resin (gray)
Status indicator LEDs: PWR, RUN, ERR, SD, RD
(Refer to the instruction manual for details)
■ DC Power Current Consumption & Weight
R7M-DA16: Approx. 60 mA; 200 g (7.1 oz)
R7M-DA16F: Approx. 40 mA; 200 g (7.1 oz)
R7M-DC16A: Approx. 70 mA; 200 g (7.1 oz)
R7M-DC16B: Approx. 70 mA; 200 g (7.1 oz)
R7M-DAC16C: Approx. 40 mA; 200 g (7.1 oz)
R7M-DAC16D: Approx. 40 mA; 200 g (7.1 oz)
R7M-DC8C: Approx. 60 mA (60 mA); 200 g (7.1 oz)
R7M-DC4G: Approx. 35 mA (70 mA); 200 g (7.1 oz)
R7M-RR8: Approx. 60 mA; 200 g (7.1 oz)
R7M-SV4: Approx. 90 mA; 200 g (7.1 oz)
R7M-TS4: Approx. 90 mA; 200 g (7.1 oz)
R7M-RS4: Approx. 90 mA; 200 g (7.1 oz)
R7M-MS4: Approx. 80 mA; 200 g (7.1 oz)
R7M-CT4E: Approx. 100 mA; 200 g (7.1 oz)
R7M-PA8: Approx. 40 mA; 200 g (7.1 oz)
R7M-YV2: Approx. 100 mA; 180 g (6.3 oz)
R7M-YS2: Approx. 140 mA; 180 g (6.3 oz)
R7M-EA8: Approx. 10 mA; 90 g (3.2 oz)
R7M-EA16: Approx. 20 mA; 150 g (5.3 oz)
R7M-EC8A: Approx. 10 mA; 90 g (3.2 oz)
R7M-EC16A: Approx. 20 mA; 150 g (5.3 oz)
R7M-EC8B: Approx. 10 mA; 90 g (3.2 oz)
R7M-EC16B: Approx. 20 mA; 150 g (5.3 oz)
R7M-EC8C: Approx. 40 mA (60mA); 150 g (5.3 oz)
The consumed current of supply power for the output is shown in ().
■ AC Power Current Consumption
R7M-RR8: Approx. 140 mA
R7M-PA8: Approx. 75 mA
■ 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.)

STANDARDS & APPROVALS

Refer to the manuals to comply with the standards.
EU conformity:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
(R7M-DC8C only. Refer to the instruction manual for the detail.)
EN 61010-1, EN 61010-2-201
Measurement Category II (output)
Pollution Degree 2
Output to power: Basic insulation (150 V)
RoHS Directive
Approval:
UL/C-UL nonincendive Class I, Division 2,
Groups A, B, C, and D
(ANSI/UL 121201、CAN/CSA-C22.2 No.213-17)
UL/C-UL general safety requirements
(UL 61010-1, CAN/CSA-C22.2 No.61010-1)
Note: This equipment is to be supplied by a Class 2 power supply when using as conformity with UL/C-UL.

EXTERNAL VIEW

■ BASIC MODULE

■ EXTENSION MODULE

■ DISCRETE I/O STATUS INDICATOR LED
Discrete I/O modules, including those for extensions, have LED indicators showing I/O signal status.
Totalized pulse modules have LED indicators showing input signal status.
Contact ON : LED ON
Contact OFF : LED OF

CONNECTION DIAGRAMS

MODBUS FUNCTION CODES & SUPPORTED CODES

MODBUS I/O ASSIGNMENT

DATA CONVERSION

EXTENSION MODULE

A ‘basic’ module can be attached with one ‘extension’ module. The extension module is powered from the basic module.
By combining two modules, single station can handle mixed analog and discrete signals, 32-point discrete inputs, 32-point discrete outputs, 16-point discrete I/Os and other combinations of signals.
Note: Relay contact 8 points output module and relay c contact 4 points output module can not be attached with an ‘Extension’ module.
■ OUTPUT AT THE LOSS OF COMMUNICATION
The extension module is set to ‘Hold Output’ by factory default setting. The PC Configurator software is used to change the setting to ‘Reset Output.’