Powtran PI9000-S Series - Page 101

Appendix II
97
Whenthe function code is set to valid, if the interval time between one communication and the next
communication exceeds the communication time-out time, the system will report communication
failure error (Fault ID Err.16). Generally, it is set to invalid. If the parameter can be set to monitor
the communication status in continuous communication system.
F9.05
Communication
protocol selection
Default
0
Setting range
0: non-standard Modbus protocol
1: standard Modbus protocol
F9
.05=1: select standard Modbus protocol.
F9
.05=0: when reading command, the number of bytes returned by slave is more 1 byte than
standard Modbus protocol.
F9.06
Communication read
current resolution
Default
0
Setting range
0: 0.01A
1: 0.1A
Used to determine the current output units when communication reads output current.