Delta DVP-ES2 - Manual (Page 387)

3 . I n s t r u c t i o n S e t
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Program Example 2:
Communication between PLC and VFD-B series AC motor drive (RTU Mode, M1143= ON)
MOV D1120 H87
M1002
SET M1120
MOV D1129 K100
M1127
Receiving
completed
Set communication protocol as 9600, 8, E, 1
Retain communication protocol
Sett receiving timeout as 100ms
Processing received data
Reset M1127
Sending request
X1
The received data
in HEX.
is stored
in D1070~D1085
Set as RTU mode
X0
MODRD K1 H2102
Set communication instruction:
D
Data address: H2102
D
ata length: 2 words
evice address: 01
K2
SET M1143
SET M1122
RST M1127
PLC
→ VFD-B , PLC transmits: 01 03 2102 0002 6F F7
VFD-B
→ PLC, PLC receives: 01 03 04 1770 0000 FE 5C
Registers for data to be sent (sending messages)
Register Data Descriptions
D1089 low byte 01 H Address of AC motor drive
D1090 low byte 03 H Command code of AC motor drive
D1091 low byte 21 H
D1092 low byte 02 H
Starting data address
D1093 low byte 00 H
D1094 low byte 02 H
Number of data (count by word)
D1095 low byte 6F H CRC CHK Low
D1096 low byte F7 H CRC CHK High
Registers for received data (responding messages)
Register Data Descriptions
D1070 low byte 01 H Address of AC motor drive
D1071 low byte 03 H Command code of AC motor drive
D1072 low byte 04 H Number of data (count by byte)
D1073 low byte 17 H
D1074 low byte 70 H
Content of address 2102 H
D1075 low byte 00 H
D1076 low byte 00 H
Content of address 2103 H