Communication parameter group07
PARAMETER DESCRIPTION 168
5.8.1 Shihlin protocol and Modbus protocol
 These protocols can link and communicate with upper controller through RS-485 communication port of inverter
for parameter setting, monitoring, etc..
COM1 Communication
protocol selection
PLC protocol(Effective when using Shilin built-in PLC)
COM1 inverter
communication station
number
Maximum inverter connect number is determined by wiring
method and impedance matching. Please set its value to a
non-zero value when using Modbus protocol.
COM1 Serial
communication baud
rate
COM1 parity check
selection
COM1 Modbus
communication format
1, 7, N, 2 (Modbus, ASCII)
1, 7, E, 1 (Modbus, ASCII)
1, 7, O, 1 (Modbus, ASCII)
COM1 Number of
communication retries
If communication error times exceed set value of 07-08
(P.52) and 07-10 (P.153) is set to 0, alarm OPT will be
reported.
COM1 communication
interval allowed time
Checking communication timeout with the set value
COM1 communication
alarm action
No alarm and continuing to operation
PU communication
protocol selection
PLC protocol(Effective when using Shihlin built-in PLC)
PU inverter
communication station
number
Maximum inverter connect number is determined by wiring
method and impedance matching. Please set its value to a
non-zero value when using Modbus protocol.