DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
Program Example 1:
Communication between PLC and VFD-B series AC motor drives (ASCII Mode, M1143 = OFF)
M1002
MOV
H87
D1120
Set communication protocol as 9600, 8, E, 1
SET
M1120
Retain communication protocol
X1
MOV
SET
K100
M1122
D1129 Set receiving timeout as 100ms
Sending request
X0
M1127
MODWR
K1
Processing received data
H0100
H1770
Set communication instruction:
Data: H1770
Data address: H0100
Device address: 01
The received data is stored in
D1070~D1085 in ASCII format.
Receiving
completed
RST
M1127
Reset M1127
PLC → VFD-B, PLC transmits: “01 06 0100 1770 71 ”
VFD-B → PLC, PLC receives: “01 06 0100 1770 71 ”
Registers for data to be sent (sending messages)
Register Data Descriptions
D1089 low ‘0’ 30 H ADR 1
D1089 high ‘1’ 31 H ADR 0
D1090 low ‘0’ 30 H CMD 1
D1090 high ‘6’ 36 H CMD 0
D1091 low ‘0’ 30 H
D1091 high ‘1’ 31 H
D1092 low ‘0’ 30 H
D1092 high ‘0’ 30 H
D1093 low ‘1’ 31 H
D1093 high ‘7’ 37 H
D1094 low ‘7’ 37 H
D1094 high ‘0’ 30 H
Data address
Data contents
D1095 low ‘7’ 37 H LRC CHK 1
D1095 high ‘1’ 31 H LRC CHK 0
Address of AC motor drive: ADR
(1,0)
Command code of AC motor
drive: CMD (1,0)
Checksum: LRC CHK (0,1)
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