Products

 

MELSEC iQ-R Series

Serial communication module

  • Simply selecting from the communication protocol library in the engineering software GX Works3, data communication supporting general-purpose protocols such as MODBUS® is easily performed.

  • RJ71C24
    • RJ71C24
      RS-232: 1-channel, RS-422/485: 1-channel
    • RJ71C24-R2
      RS-232: 2-channel
    • RJ71C24-R4
      RS-422/485: 2-channel

    MODBUS®

Data collection from the existing MELSEC-A Series and MODBUS®-compatible devices

  • Just by registering parameters, easy device data exchange with the existing MELSEC-A Series and MODBUS®-compatible devices is possible
  • Simply installing the MELSEC iQ-R Series for data collection enables data collection from the existing MELSEC-A Series easily

Data collection from the existing MELSEC-A Series and MODBUS®-compatible devices

Serial communication module specifications

Item RJ71C24 RJ71C24-R2 RJ71C24-R4
Transmission speed (bps) 1.2k/2.4k/4.8k/9.6k/14.4k/19.2k/28.8k/38.4k/57.6k/115.2k/230.4k
MODBUS® communication function *1
Interface
CH1 RS-232 RS-232 RS-422/485
CH2 RS-422/485 RS-232 RS-422/485
Overall transmission distance
RS-232 (m) 15 15
RS-422/485 (m) 1200 1200
Function
Simple CPU communication function

*1.The MODBUS® master function is supported when used with the simple CPU communication function.