Sinee A90 Series, Руководство пользователя

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User Manual of A90 Series Inverter
278
Starting address Hi 00 Starting address
Hi 00
Exception
code
03
Starting address Lo 0E Starting address
Lo 0E
Number (Hi) of registers 00 Number (Hi) of
registers 00
Number (Lo) of registers 02 Number (Lo) of
registers 02
Number of bytes 04
Register value Hi
(F00.14) 01
Register value Lo
(F00.14) F4
Register value Hi
(F00.15) 02
Register value Lo
(F00.15) 58
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This function code cannot be used to change the parameters of the attribute “○”
(it cannot be changed during operation). That is, only the parameters of the
attribute “●” (it can be changed during operation) can be changed. Otherwise, the
error code 1 will be returned.
12.3.3.4 0x08: function code for diagnosis
The Modbus function code 08 involves a series of tests to check the communication
system between the client (master station) and server (slave station), or internal error
statuses of the server.
The test to be executed is defined by the sub-function code fields of two bytes in the
request. The server makes responses properly.
Copy the function codes and sub-function codes. Some diagnoses will enable the
remote terminal unit to return the corresponding data through the data field in normal
response.
Under normal circumstances, when the diagnosis function is sent to the remote
terminal unit, the user program in this remote terminal unit will not be affected. The user
logic cannot be accessed by diagnosis, such as: discrete magnitude and register. The error
counter in the remote terminal unit can be remotely reset by applying some functions.