Communication Between Plc And Vfd-B Series Ac Motor Drive; Registers For Data To Be Sent (Sending Messages) - Delta DVP-ES2 Operation Manual

DVP- ES2 / EX2 / SS2 / SA2 / SX2 / SE&TP O pe r a t i on Ma nua l - Pr ogr am m i ng
Program Example 2:
Communication between PLC and VFD-B series AC motor drive (RTU Mode, M1143= ON)
M1002
X1
X0
M1127
Receiving
completed
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
D1089 low byte
D1090 low byte
D1091 low byte
D1092 low byte
D1093 low byte
D1094 low byte
D1095 low byte
D1096 low byte
Registers for received data (responding messages)
Register
D1070 low byte
D1071 low byte
D1072 low byte
D1073 low byte
D1074 low byte
D1075 low byte
D1076 low byte
D1077 low byte
D1078 low byte
3 - 2 8 4
MOV H87 D1120
Retain communication protocol
SET M1120
MOV K100 D1129
Set as RTU mode
SET M1143
Sending request
SET M1122
MODRD K1 H2102
Processing received data
RST M1127 Reset M1127
Data
01 H Address of AC motor drive
03 H Command code of AC motor drive
21 H
Starting data address
02 H
00 H
Number of data (count by word)
02 H
6F H CRC CHK Low
F7 H CRC CHK High
Data
01 H Address of AC motor drive
03 H Command code of AC motor drive
04 H Number of data (count by byte)
17 H
Content of address 2102 H
70 H
00 H
Content of address 2103 H
00 H
FE H CRC CHK Low
5C H CRC CHK High
Set communication protocol as 9600, 8, E, 1
Sett receiving timeout as 100ms
K2
Set communication instruction:
D ata length: 2 words
Data address: H2102
D evice address: 01
The received data is stored
in D1070~D1085 in HEX.
Descriptions
Descriptions