Return Iop Overrun Error Count (Sub-Function Code: 13H) - Mitsubishi Electric MELSEC iQ-R Series Reference Manual

Return IOP overrun error count (sub-function code: 13H)

Operation description
Reads the IOP overrun error count value to the master.
C24 returns to the master the number of times the request message size exceeds the upper limit. (Same as the Return bus
character overrun count)
Request message format (from master to slave)
Function code Sub-function code
08H
(H)
Response message format (from slave to master)
■ When completed successfully
Function code Sub-function code
08H
(H)
Returns the count value of the buffer memory listed below to the master.
• 'Character overrun count' (Un\G32514/Un\G32578)
Refer to the following for the counter descriptions, count range, and count clear methods.
Page 21 Checking communication conditions using a diagnostic counter
■ When completed with an error
Function code Data
Exception code
88H
3 MODBUS STANDARD FUNCTION DETAILS
36
3.8 Diagnostics (FC: 08H)
(0013H)
(L) (H)
Bus character overrun
count value
(0013H) (0000H to FFFFH)
(L) (H)
Data
(0000H)
(L)
Data
(L)