Serial Communication Function - Mitsubishi Electric melsec q00ujcpu User Manual

6.23

Serial Communication Function

(1) Definition
This function communicates in the MC protocol
personal computer, and HMI by RS-232 cable.
This section describes the specifications, functions, and various settings of the function.
*1: The MC protocol is an abbreviation for the MELSEC communication protocol.
The MELSEC communication protocol is a communication method to access from an external device to the CPU
module according to the communication procedure for the Q series programmable controller (such as a serial
communication module, Ethernet module).
For the MC protocol, refer to the following.
Q Corresponding MELSEC Communication Protocol Reference Manual
●
A personal computer or HMI can communicate with a CPU module by the serial communication function only when the
CPU module is connected to it.
The CC-Link IE controller network, MELSECNET/H, Ethernet, or CC-Link cannot be communicated with another
station.
●
The serial communication function is not used for connection of GX Developer or GX Configurator with the CPU
module.
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Note6.11
Universal
When using the serial communication function for the Q02UCPU, check the versions of the CPU module and GX
Developer. (
When using the Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, Q20UDHCPU,
Q26UDHCPU, or Built-in Ethernet port QCPU, the serial communication function cannot be used.
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RS-232 cable
Personal computer or HMI
Communication in the MC protocol
Figure 6.92 Communication with personal computer or HMI
Appendix 2)
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Note6.11
*1
by connecting the RS-232 interface of the CPU module,