Omron DeviceNet CV Series Operation Manual page 271

C200H I/O Link Units
Using the IOWR
Instruction (C200HX/HG/
HE PLCs) to Write Data
254
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Word Contents (Hex)
S+7 00 01
S+8 0A 00
S+9 28 00
D: Destination Information
Results are stored as shown in the following table.
Word Contents (Hex)
D 00 10
(0 010)
Response Storage Words
Results are stored as shown in the following table.
Word Contents (Hex)
DM 2000 28 01
DM 2001 00 00
DM 2002 00 2A
DM 2003 02 9C
DM 2004 to HH LL...
DM 2023
In the following example, the IOWR instruction is used to write data to words
IR 010 to IR 029 (20 words) on the Slave Unit, from the Master (C200HX/HG/
HE PLCs). For more detailed information on explicit messages, refer to the
DeviceNet Master Unit Operation Manual or for information on the IOWR
instruction, refer to the SYSMAC C200HX/HG/HE PLCs Operation Manual .
Example Conditions
Master node address: 63
Master's Unit address: 0
Slave node address: 2
Example: Using IOWR
C: Control Words (C: First Control Word)
Word Contents (Hex)
C 3F FE
Meaning
Instance ID: For IR Area 1: 0001 Hex
Read start address: 10 = 000A Hex
Address L: 0A Hex, Address H: 00 Hex
No. of bytes of read data: 40 bytes = 28 Hex
(The rightmost byte is not used.)
Meaning
Master's Unit address: 0, No. of words of
command data: 10 words (specified in BCD)
(No. of words from S onwards)
Meaning
EXPLICIT MESSAGE SEND command
code: 28 01 Hex
Response code (0000 Hex: Normal comple-
tion)
No. of received bytes (data length after
DM 2003): 42 bytes
Slave node address: 2
BYTE DATA READ response service code:
9C Hex
Data read from the Slave's IR 010 to IR 029.
When the BYTE DATA READ command is
used from an OMRON Master, data is stored
in the Master in the same sequence as the
Slave; leftmost byte to rightmost byte.
Meaning
Master's node address: 63
Master's Unit address: FE Hex
Section 6-1