Mitsubishi Electric MELSEC iQ-R04ENCPU - Return Slave NAK Count (Sub-Function Code: 10 H)

3 MODBUS STANDARD FUNCTION DETAILS
3.8 Diagnostics (FC: 08H)
33
3
Return slave NAK count (sub-function code: 10H)
Operation description
Reads out the number of NAK 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 NAK count' (Un\G32520/Un\G32584)
It is always '0' in C24s.
■ When completed with an error
(H) (L)
08H (0010H) (0000H)
(H) (L)
DataFunction code Sub-function code
(H) (L)
(H) (L)
08H (0010H)
Function code Sub-function code
Slave NAK count value
Data
(0000H)
88H
Data
Exception code
Function code