4) Action Request for monitor register: Request for read of address registered by monitor register.
Total bytes = 7
4.1) Acknowledge response:
Total bytes = 7 + n * 4 = Max 39
4.2) Negative response:
Total bytes = 9
5) Error code
Error code Description
When master is sending codes other than Function code (R, W, X, Y).
When parameter address does not exist
When Data value exceeds its permissible range during ‘W’ (Write).
When the specific parameters cannot be written during ‘W’ (Write).
(For example, in the case of Read Only, Write disabled during Run)
When frame size of specific function is not correct and Checksum field is
wrong.
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