Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual 01 06 0706 1770 66 AB

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

Program Example:

Connect PLC to VFD series AC motor drive (RTU mode, M1143 = ON), (8-bit mode, M1161 = ON), Write the data to be sent (H1770) into address H0706 on VFD.

	M1002			MOV	H86	D1120	Set communication protocol as
							9600,7,E,1
				SET	M1120	Retain communication setting
				MOV	K100	D1129	Set communication timeout as:
							100ms
				SET	M1161	8-bit mode
	Sending
	request pulse			Write data to be sent in advance
				SET	M1122	Sending request
	X0
				RS	D100	K8	D120	K8
	Receiving completed
	M1123			Processing received data
				RST	M1123	Reset M1123
PLC VFD, PLC sends:					01 06 0706 1770 66 AB
Registers for sent data (sending messages)
			Register		Data	Explanation
		D100 low byte			01 H	Address
		D101 low byte			06 H	Function
		D102 low byte			07 H	Data address
		D103 low byte			06 H
		D104 low byte			17 H	Data content
		D105 low byte			70 H
		D106 low byte			66 H	CRC CHK 0
		D107 low byte			AB H	CRC CHK 1

The error checksum CRC CHK (0,1) can be calculated by CRC instruction (8-bit mode, M1161 = ON).

M1000

CRC D100 K6 D106

CRC checksum: 66 H is stored in low byte of D106 and AB H in low byte of of D107,

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