Delta DVP-ES2 User Manual download pdf (Page 393)

100

101

3. Instruction Set

3-277

Program Example 3:

1. In the communication between PLC and VFD-B series AC motor drive (ASCII Mode, M1143 =

OFF), executes Retry when communication time-out, data receiving error or parameter error

occurs

2. When X0 = ON, PLC will write data H1770 (K6000) into address H0100 in device 01 (VFD-B).

3. M1129 will be ON when communication time-out occurs. The program will trigger M1129 and

send request for reading the data again.

4. M1140 will be ON when data receiving error occurs. The program will trigger M1140 and send

request for reading the data again.

5. M1141 will be ON when parameter error occurs. The program will trigger M1141 and send

request for reading the data again.

M1002

MOV H87 D1120

SET M1120

Set communication protocol as 9600, 8, E, 1

Retain communication protocol

Set communication timeout as 100ms

MODWR K1 H0100 H1770

Set communication instruction:

Data address:

Data: H1770

H0100

Device address: 01

M1129

M1140

M1141

Sending request

Retry when communication time-out occurs

Retry when data receiving error occurs

Retry when parameter error occurs

RST

M1127

RST

M1129

Receiving completed

Processing received data

The received data is stored in D1070-D1085

i.n ASCII format

Reset M1127

Reset M1129 (receiving timeout)

MOV K100 D1129

SET

M1122

M1129

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Delta DVP-ES2 User Manual Page 393

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