Delta DVP-ES2 - Page 463

DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
3-342
8. M1177 = ON, other Delta VFDs are supoported
a) Range of S
1
: 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
MOV H86 D1120
SET M1120
MOV
K100
D1129
RST
M1127
M1127
X0
RDST K1 K0
SET
M1122
M1129
X0
Retry when communication time-out occurs
Processing received data
Receiving completed
Communication instruction setting:
Device address: 1
K0:
Reserved
S e t u p communication protocol as
9600, 7, E, 1
Retain communication protocol
Set up communication time-out: 100ms
Sending request
Reset M1127.
The re ce ive d data is s tored in
D1070 ~ D1074.
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
Starting data address
‘1’
31 H
‘0’
30 H
‘0’
30 H
‘0’
30 H
Number of data (count by word)
‘0’
30 H
‘0’
30 H
‘5’
35 H
‘D’
44 H
LRC CHK 1
Error checksum: LRC CHK
(0,1)
‘6’
36 H
LRC CHK 0