65
CHAPTER 5 MC PROTOCOL COMMUNICATION
5
5.2 Sending a C
ommand fr
om the CPU Mod
ule to
an Exter
nal Device
5.1.4 Er
ror
code
s, end
code
s, and
abnormal codes in MC
protocol com
m
unication
5.2
Sending a Command from the CPU Module to an
External Device
MC protocol messages (QnA-compatible 3E frame and 4E frame) can be sent from the CPU module to external
devices on the Ethernet network.
To send the messages, use the SLMP frame send instruction.
Note 5.1
Note
5.1
The SLMP frame send instruction can be used only with the QnUDVCPU.
When sending a command from the CPU module to an external device, check the versions of the CPU module.
(
Universal
Header
Subheader
Command
Access destination
Request message
Ethernet
CPU module
External device
Header
Subheader
Response data
Response message
Summary of Contents for melsec q03ud(E)cpu
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