232
3.23 Serial Communication Function
This function communicates data using the MC protocol by connecting the RS-232 interface of the CPU module and a
personal computer or HMI from other companies with an RS-232 cable. This section describes the specifications,
functions, and settings of the function. Note 3.16
● A personal computer or HMI from other companies can communicate only with a CPU module connected to it. It cannot
communicate with stations connected over CC-Link IE, MELSECNET/H, Ethernet, or CC-Link.
● This function is not used to connect a programming tool or GOT to a CPU module.
● To execute this function with the Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU,
Q20UDHCPU, or Q26UDHCPU, use GX Works2. (GX Developer does not support this function.)
Note 3.16
Before executing the function with the Q02UCPU, Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q10UDHCPU,
Q13UDHCPU, Q20UDHCPU, or Q26UDHCPU, check the versions of the CPU module and programming tool used.
( Page 465, Appendix 2)
The Built-in Ethernet port QCPU does not support this function.
RS-232 cable
Personal computer or
HMI from other companies
Communication
using the MC protocol
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