XLT Hitachi X200 - Manual (Page 252)

No response occurs:
In the cases below, the inverter ignores a query and returns no response.
x When receiving a broadcasting query
x When detecting a transmission error in reception of a query
x When the slave address set in the query is not equal to the slave address of the
inverter
x When a time interval between data elements constituting a message is shorter than
3.5 characters
x When the data length of the query is invalid
NOTE: Provide a timer in the master and make the master retransmit the same query
when no response is made within a preset time period after the preceding query was
sent.
B 9
Appe
ndix B
B −9
Appendix B