Chapter 8 Communication Function
8-75
Error code is as follow
Code
Error type
Meaning
01
Illegal Function
Error in inputting function code in instruction.
02
Illegal Address
Error of exceeding the area limit of reading/writing on the slave station.
03
Illegal Data Value
Error when the data value to be read from or write on the slave station isn’ t
allowed.
04
Slave Device Failure
Error status of the slave station.
05
Acknowledge
It’ s a responding code of the slave station for the master station to prevent the
master station time-out error, when request command processing takes time.
The master station marks an error code and waits for a certain time without
making any second request.
06
Slave Device Busy
Error when request command processing takes too much time. The master
should request again.
07
Time Out
Error when exceeds the time limit of the communication parameter as it
communicates.
08
Number Error
Errors when data is 0 or more than 256 bytes
09
Parameter Error
Error of setting parameters (mode, master/ slave)
10
Station Error
Error when the station number of itself and the station number set by the
S1 of instruction are the same.
