Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 81

3 SPECIFICATIONS
SEND
Q25H
CPU
Q25H
CPU
3 - 27
(8) Checking the transient transmission abnormal detection time
By using this function, the "Time," "Abnormal detection network number," and
"Abnormal detection station number" can be checked when a transient
transmission (SEND, READ, SREAD, WRITE, SWRITE, REQ and other
instructions) ends abnormally.
Logs such as time logs can be used to identify the network problems.
For details of these instructions, refer to Section 7.4.5.
Request source
QJ71
LP21
QJ71
LP21
Q25H QJ71
CPU LP21
Q25H QJ71
QJ71
CPU LP21
BR11
MELSEC-Q
Abnormal detection station
Q25H QJ71
CPU BR11
Request destination
3 - 27