Mitsubishi Electric MELSEC iQ-RJ71C24-R4 - Return Slave Busy Count (Sub-Function Code: 11 H)

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3 MODBUS STANDARD FUNCTION DETAILS
3.8 Diagnostics (FC: 08H)
Return slave busy count (sub-function code: 11H)
Operation description
Reads out the number of busy responses to the master.
Request message format (from master to slave)
Response message format (from slave to master)
■ When completed successfully
Returns the count value of the buffer memory listed below to the master.
• 'Slave busy count' (Un\G32521/Un\G32585)
It is always '0' in C24s.
■ When completed with an error
(H) (L)
08H (0011H) (0000H)
(H) (L)
DataFunction code Sub-function code
(H) (L)
(H) (L)
08H (0011H)
Function code Sub-function code
Slave busy count value
Data
(0000H)
88H
Data
Exception code
Function code