Shihlin electric SL3 Series, Руководство пользователя

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Communication parameter group 07
PARAMETER DESCRIPTION 115
Note:1. Maximum inverter connect number is determined by wiring method and impedance matching. Please set
station number value to non-zero when using Modbus protocol.
2. If communication error times exceed set value of 07-08(P.52), and 07-10(P.153) is set to 0, OPT alarm will
trigger.
3.
Modbus protocol is expressed according to start bit, data bit, parity check bit and stop bit. In addition, N means
no parity check, E means 1-bit even check, and O means 1-bit odd check.
4.
In shilin protocol, please check the settings of parameter 07-03~07-05(P.48~P.50).If 07-04(P.49) is set to 1(stop
bit 2 bit)，set 07-05(P.50) to 0 and select no parity check；the format of 07-03(P.48)=1, 07-04(P.49)= 07-05
(P.50)=0 is unusable.

Composition and wiring of SL3 RS-485 communication interface
1.
Terminal configuration of SL3 RS-485 communication interface
RJ45 PIN Instruction
1,2,3,6:Reserved
4:DB-
5:DA+
7:+5V
8:GND
8 1
Cord End Terminal
RJ45
2. Communication between upper controller and a single inverter (take PLC as an example)
Number 1
PLC
Inverter 1
DA+
DB-
3. Communication between upper controller and multiple inverters (take PLC as an example)
PLC
.....
Number 1
Inverter 1
DA+
DB-
Number 2
Inverter 2
DA+
DB-
Number n
Inverter n
DA+
DB-
4. SL3 series inverter support Shihlin communication protocol and MODBUS communication protocol

Shilin protocol
1. Upper controller and inverter automatically converted into ASCII code (hexadecimal) for communication
2. Please follow the steps to perform data communication between upper controller and inverter.