Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Range of S1 K1 ~ K255

3. Instruction Set

a)Range of S1: K1 ~ K255

b)The instruction will read VFD status at parameter address 2100H~2104H (Please refer to user manual of specific VFD for details.) and store the feedback data in D1070~D1074. However, the content in D1070~D1074 will not be updated when receiving error or timeout occurs. Therefore, please check the status of receiving completed flag before applying the received data

Program Example: COM2 (RS-485)

1.Communication between PLC and VFD-B series inverter (ASCII Mode, M1143 = OFF). Retry when communication time-out occurs.

2.Read VFD status at parameter address 2100H~2104H and store the received data in D1070 ~ D1074.

M1002					Set up communication protocol as
		MOV	H86	D1120
					9600, 7, E, 1
		SET	M1120	Retain communication protocol
		MOV	K100	D1129	Set up communication time-out: 100ms
	X0

M1129

SET M1122 Sending request

Retry when communication time-out occurs

X0				Communication instruction setting:
	RDST	K1	K0	Device address: 1
Receiving completed				K0: Reserved
M1127				The received data is stored in
	Processing received data
	RST			D1070 ~ D1074.
		M1127	Reset M1127.

PLC VFD-B, PLC sends: “:01 03 2100 0005 D6 ”

VFD-B PLC, PLC receives: “:01 03 0A 00C8 7C08 3E00 93AB 0000 2A ”

Data to be sent (sending messages)

	Data			Descriptions
‘0’		30 H	ADR 1	AC drive address : ADR (1,0)
‘1’		31 H	ADR 0
‘0’		30 H	CMD 1	Command code: CMD (1,0)
‘3’		33 H	CMD 0
2’		32 H
‘1’		31 H	Starting data address
‘0’		30 H
‘0’		30 H

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