TRICONEX-3301 Haiwei PLC communicates with Delta inverter
TRICONEX-3301 First, Haiwei PLC communication features:
1, a variety of built-in communication protocols: Haiwell PLC hosts of various models have built-in Modbus RTU/ASCII protocol, free communication protocol and HaiwellBus high-speed communication protocol;
2. Communication ports can be expanded: Haiwell PLC hosts of various models have 2 communication ports (one is RS-232, the other is RS-485), which can be extended to 5 communication ports with communication expansion modules. Each communication port can be used for programming and networking, and the communication ports are independent from each other.
3, TRICONEX-3301 extremely convenient communication instruction system: no matter what kind of communication protocol you use, you only need one communication instruction to complete complex communication functions, simple programming and simple program, no longer need to worry about communication port conflict, send and receive control, communication interruption processing and other problems, you can mix a variety of protocols in the program to easily complete the various data exchange you need;
TRICONEX-3301 Second, Delta inverter communication protocol introduction
TRICONEX-3301 Delta frequency converter adopts Modbus communication protocol. According to Delta frequency converter manual, the main parameters related to communication are as follows:
P00: Frequency instruction source setting, default 00, need to be set to 03
00: Controlled by a digital operator
01: controlled by analog signal 0~10V
02: controlled by analog signal 4~20mA
03: Controlled by RS485 communication
04: VR control on digital operator control
P01: Run instruction source Settings, default 00, need to be set to 03
00: Controlled by a digital operator
01: Controlled by the external terminal, the keyboard STOP is valid
02: Controlled by an external terminal, the keyboard STOP is invalid
03: Controlled by RS485 communication, keyboard STOP is effective
04: Controlled by RS485 communication, keyboard STOP is invalid
P88: indicates the communication address, ranging from 1 to 254. The default value is 1
P89: Communication transfer speed (baud rate), default 01
00:48 00
01:9,600
02:19 200
03:38 400
P92: Communication data format, default 00, set to 01
00: Modbus ASCII <7,N,2>
01: Modbus ASCII <7,E,1>
02: Modbus ASCII <7,O,1>
03: Modbus RTU <8,N,2>
04: Modbus RTU <8,E,1>
05: Modbus RTU <8,O,1>