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

3. Instruction Set
PLC VFD-B,PLC transmits: “01 10 2000 0002 04 1770 0012 EE 0C”
VFD-BPLC, PLC receives: ”01 10 2000 0002 4A08”
Registers for data to be sent (sending messages)
Register Data Descriptions
D1256 Low byte 01 H Address
D1257 Low byte 10 H Function
D1258 Low byte
D1259 Low byte
D1260 Low byte
D1261 Low byte
20 H
00 H
00 H
02 H
Data Address
Number of Register
D1262 Low byte 04 H Byte Count
D1263 Low byte
D1264 Low byte
D1265 Low byte
D1266 Low byte
17 H
70 H
00 H
12 H
Data
content 1
Data
content 2
D1262 Low byte EE H CRC CHK Low
D1263 Low byte 0C H CRC CHK High
Registers for received data (responding messages)
The content of D50: H1770 (K6000)
The content of D51: H0012 (K18)
Register Data Descriptions
D1070 Low byte 01 H Address
D1071 Low byte 10 H Function
D1072 Low byte
D1073 Low byte
D1074 Low byte
D1075 Low byte
20 H
00 H
00 H
02 H
Data Address
Number of Register
D1076 Low byte 4A H CRC CHK Low
D1077 Low byte 08 H CRC CHK High
Program example 12: COM1 (RS-232) / COM3 (RS-485), Function Code H10
1. Function code K16 (H10): Write in multiple Word devices. Up to 16 Words can be written. For
PLC COM2 ASCII mode, only 8 words can be written.
2. PLC COM1/COM3 will not process the received data
3. Take the connection between PLC COM3 and VFD-B for example, the tables below explain
the status when PLC COM3 writes multiple Words in VFD-B. (M1320 = OFF, ASCII mode)
(M1320 = ON, RTU mode)
• If PLC applies COM1 for communication, the below program can be usable by changing:
1. D1109→D1036: communication protocol
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