Frame - Mitsubishi Electric MELSEC IQ-R series Reference Manual

Frame

This section explains the types and purposes of the frames (data communication messages) used by the external device to
access the supported devices using MC protocol.
The frames for Ethernet interface modules are as follows:
Frame Features and purposes
4E frame A message format that a "Serial No." (arbitrary number
for message identification) is added to 3E frame. By
appending a "Serial No.", the send source can be
identified when multiple request messages have been
sent.
3E frame These frames have the same message structures as
when accessing the CPU module using MELSEC-QnA
series Ethernet interface module.
Data communication software for MELSEC-QnA series
programmable controllers can be used.
1E frame These frames have the same message structures as
when accessing the CPU module using an MELSEC-A
series Ethernet interface module.
Data communication software for MELSEC-A series
programmable controllers can be used.
5 MESSAGES OF ETHERNET INTERFACE MODULE
40
5.1 Types and Purposes of Messages
Compatible message format
Message formats for SLMP
Message formats for SLMP
Message formats for MELSEC-QnA series Ethernet interface
modules
Message formats for MELSEC-A series Ethernet interface
modules
Corresponde
nce code
ASCII code
Binary code
ASCII code
Binary code
ASCII code
Binary code