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

3. Instruction Set
Register Data Descriptions
D5
0000 H
PLC converts ASCII codes in 2105 H and stores the converted
data automatically.
RTU mode (COM3: M1320 = ON COM1: M1139 = ON):
When X0 = ON, MODRW instruction executes the function specified by Function Code 03
PLC VFD-B, PLC sends: ” 01 03 2100 0006 CF F4”
VFD-B PLC, PLC receives: “01 03 0C 0000 0503 0BB8 0BB8 0000 012D 8E C5”
Registers for received data (responding messages)
Register Data Descriptions
D0
D1
D2
D3
D4
D5
0000 H
0503 H
0BB8 H
0BB8 H
0136 H
012D H
PLC converts data in 2100 H and stores the converted data
automatically.
PLC converts data in 2101 H and stores the converted data
automatically.
PLC converts data in 2102 H and stores the converted data
automatically.
PLC converts data in 2103 H and stores the converted data
automatically.
PLC converts data in 2104 H and stores the converted data
automatically.
PLC converts data in 2105 H and stores the converted data
automatically.
Program example 5: COM2(RS-485), Function Code H05
1. Function code K5(H05): Force ON/OFF bit device
2. PLC1 connects to PLC2: (M1143 = OFF, ASCII mode), (M1143 = ON, RTU Mode)
3. n = 1 indicates Force ON (set FF00H) and n = 0 indicates Force OFF (set 0000H)
4. For ASCII or RTU mode, PLC COM2 stores the data to be sent in D1256~D1295 and stores
the received data in D1070~D1085
5. Take the connection between PLC1 (PLC COM2) and PLC2 (PLC COM1) for example, the
tables below explain the status when PLC1 Force ON PLC2 Y0.
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