Delta DVP-EX2 - Page 486

3. Instruction Set
3-365
D13 low byte
‘0’
30 H
Content of
address H2105
0000 H
PLC COM2 automatically
converts ASCII codes to hex
and stores the converted
value in D1301
D13 high byte
‘0’
30 H
D14 low byte
‘0’
30 H
D14 high byte ‘0’ 30 H
D15 low byte
‘3’
33 H
LRC CHK 1
D15 high byte
‘B’
42 H
LRC CHK 0
RTU mode (M1143 = 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 data to be sent (sending messages)
Register
Data
Descriptions
D1256 Low byte
01 H
Address
D1257 Low byte
03 H
Function
D1258 Low byte
21 H
Data Address
D1259 Low byte
00 H
D1260 Low byte
00 H
Number of data (count by word)
D1261 Low byte
06 H
D1262 Low byte
CF H
CRC CHK Low
D1263 Low byte
F4 H
CRC CHK High
Registers for received data (responding messages)
Register
Data
Descriptions
D0 low byte
01 H
Address
D1 low byte
03 H
Function
D2 low byte
0C H
Number of data (count by byte)
D3 low byte
00 H
Content of
address H2100
0000 H
PLC COM2 automatically
stores the value in D1296
D4 low byte 00 H
D5 low byte
05 H
Content of
address H2101
0503 H
PLC COM2 automatically
store the value in D1297
D6 low byte 03 H
D7 low byte
0B H
Content of
address H2102
0BB8 H
PLC COM2 automatically
stores the value in D1298
D8 low byte B8 H
D9 low byte
0B H
Content of
address H2103
0BB8 H
PLC COM2 automatically
store the value in D1299
D10 low byte B8 H
D11 low byte
00 H
Content of
address H2104
0000 H
PLC COM2 automatically
store the value in D1300
D12 low byte 00 H
D13 low byte
01 H
Content of
address H2105
012D H
PLC COM2 automatically
store the value in D1301
D14 low byte 2D H
D15 low byte
8E H
CRC CHK Low
D16 low byte
C5 H
CRC CHK High