Product Features

MELSEC iQ-R Series Features System Recorder Lineup System configuration CPU I/O Analog Motion, Positioning, High-speed counter, Channel isolated pulse input Network Advanced information Technology

Features Input Output I/O Combined Module

Input Modules

Digital input modules like the 24 V direct-current (DC) power supply are among the most used input signals in the control industry. The robust design of the various modules in this diversified lineup makes them ideal for industrial use.In addition, spring-clamp terminal blocks with easier wiring and maintenance features reduce installation time.

Multiple features integrated

A single MELSEC iQ-R input module can handle input response devices as fast as 0.1 ms, interrupt input devices and can be wired using either positive or negative (sink or source) common terminals. Since multiple modules are no longer required, a substantial reduction in overall footprint of up to 20% and a reduction in total system costs of up to 60% can be realized.

*1: The RX42C4 module can be configured to use both sink and source wiring (between the left and right sides of 32 point terminal).
*2: Based on a comparison with the MELSEC-Q Series

Reduce downtime with disconnection detection

Similar to analog modules, the MELSEC iQ-R Series input module (with diagnostic functions) includes input disconnection detection which enables detection of inputs directly on the I/O module. When an error occurs, the control system can quickly highlight the fault via a monitoring system or on GX Works3 programming software, reducing system downtime and loss of production.

Input module specifications

Item	AC input
Item	RX28	RX10-TS	RX10
Number of input points	8	16	16
Rated input voltage, frequency	100...240 V AC, 50/60 Hz	100...120 V AC, 50/60 Hz	100...120 V AC, 50/60 Hz
Rated input current (mA)	16.4 (200 V AC, 60 Hz) 13.7 (200 V AC, 50 Hz) 8.2 (100 V AC, 60 Hz) 6.8 (100 V AC, 50 Hz)	8.2 (100 V AC, 60 Hz) 6.8 (100 V AC, 50 Hz)	8.2 (100 V AC, 60 Hz) 6.8 (100 V AC, 50 Hz)
Response time (ms)	≤ 20	≤ 20	≤ 20
Common terminal arrangement (points/common)	8	16	16
Interrupt function	●	●	●
External interface^*3
Spring-clamp terminal block	—	●	—
18-point screw terminal block	●	—	●

Item	DC input
Item	RX40C7-TS	RX40C7	RX41C4-TS	RX41C4	RX42C4	RX70C4	RX71C4	RX72C4
Number of input points	16	16	32	32	64	16	32	64
Rated input voltage (V DC)	24	24	24	24	24	5/12	5/12	5/12
Rated input current (mA, TYP.)	7.0	7.0	4.0	4.0	4.0	1.7 (5 V DC) 4.8 (12 V DC)	1.7 (5 V DC) 4.8 (12 V DC)	1.7 (5 V DC) 4.8 (12 V DC)
Response time (ms)	0.1...70	0.1...70	0.1...70	0.1...70	0.1...70	0.1...70	0.1...70	0.1...70
Common terminal arrangement (points/common)	16	16	32	32	32	16	32	32
Interrupt function	●	●	●	●	●	●	●	●
External interface^*3
Spring-clamp terminal block	●	—	●	—	—	—	—	—
18-point screw terminal block	—	●	—	—	—	●	—	—
40-pin connector	—	—	—	●	● (2x)	—	●	● (2x)

Item	DC high-speed input				DC input (with diagnostic functions)
Item	RX40PC6H	RX40NC6H	RX41C6HS	RX61C6HS	RX40NC6B
Number of input points	16	16	32	32	16
Rated input voltage (V DC)	24	24	24	5	24
Rated input current (mA)	6.0	6.0	6.0	6.0	6.0
Response time	5 µs...70 ms	5 µs...70 ms	1 µs...70 ms	1 µs...70 ms	1 µs...70 ms
Common terminal arrangement (points/common)	8 (positive common)	8 (negative common)	32 (positive/negative common)	32 (positive/negative common)	16 (negative common)
Interrupt function	●	●	●	●	●
SIL 2-compliant	—	—	—	—	●^*4
Diagnostic function^*5
Disconnection detection	—	—	—	—	●
External interface^*3
18-point screw terminal block	●	●	—	—	●
40-pin connector	—	—	●	●	—

*3: For applicable options, please refer to the relevant product manual.
*4: When used together with a SIL 2 redundant control system (SIL 2 is supported in the module firmware version of "02" or later).
*5: For more information about diagnostic functions, please refer to the relevant product manual.