Product
Product Features
Serial communication
These highly flexible communications modules allow connection to practically any serial device
●Serial communication module RS-232 1ch, RS-422/485 1chQJ71C24N
●Serial communication module RS-232 2chQJ71C24N-R2
●Serial communication module RS422/485 2chQJ71C24N-R4
- Push the limits of serial technology: baud rates up to 230.4 kbps, distance up to 1200 m, and multiple block batch read/write up to 960 words from QCPU device memory.
- External devices (personal computer, HMI, etc.) may read and write data in the programmable controller CPU using MC protocol.
- Connect with intelligent devices using their native protocol (barcode reader, measurement device, etc.) by selecting non-procedure protocol and using a sequence program for communication control.
- MELSOFT engineering tools can establish a connection to the programmable controller CPU through the serial connection to perform programing and maintenance duties.
- Dedicated functions are available to facilitate RS-232 communication over public telephone lines using a serial modem. One of them, the remote password function, prevents unauthorized access to programmable controllers via the modem line.
Combination of Ethernet/serial communication module and GX Works2 (predefined protocol support function)
Communication with any device can be started quickly only by selecting the device from the predefined protocol library
❸ Execute the protocol with ladder program.
With ladder program, communication with any external device can be made only by executing a dedicated predefined protocol starting instruction.
Easy to prepare and edit predefined protocol
- Even if the device to be connected is not contained in the predefined protocol library, the device can be added easily.
- The contents of the prepared predefined protocol can be displayed in list form. The protocol can be edited easily.
*: Supported by QJ71C24N (-R2/R4) with the function version B and a serial number whose first 5 digits are 11062 or higher.
*: Supported by products with the first five digits of the QJ71E71-100 product number of 15042 or later.