Return Slave Nak Count (Sub-Function Code: 10H) - Mitsubishi Electric MELSEC iQ-R Series Reference Manual

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)
Function code Sub-function code
08H (0010H)
(H)
Response message format (from slave to master)
■ When completed successfully
Function code Sub-function code
08H (0010H)
(H)
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
Function code Data
Exception code
88H
Data
(0000H)
(L) (H) (L)
Data
Slave NAK count value
(0000H)
(L) (H) (L)
3 MODBUS STANDARD FUNCTION DETAILS
3.8 Diagnostics (FC: 08H)
3
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