Omron CPM2C-S100C Operation Manual page 154

Explicit Message Communications
C200HX/HG/HE PCs: Writing Data with IOWR(––)
Example Network
Conditions
IOWR(––) Operand Details
[IOWR C S D]
132
This example shows the instruction operands and results when 20 words of
data are written from a Master mounted in a C200HX/HG/HE PC to words IR
010 to IR029 in a Slave.
Refer to the DeviceNet Masters Operation Manual (W379) for details on
explicit messages and refer to the C200HX/HG/HE Programmable Controllers
Operation Manual (W303) for details on IOWR(––).
Master's node number:
Slave's network address:
Slave's node number:
• Control Code
Word Contents
(Hex)
C 3F FE Master's node number = 3F (Hex) specifies 63
Master's unit address = FE (Hex) specifies the local Unit
• Command Words (Source Information)
Word Contents
(Hex)
S 82 07 Specifies starting response word = DM 2000
S+1 D0 00 82 (Hex) specifies the DM area
07D0 (Hex) specifies address 2000
(Refer to the C200HX/HG/HE Operation Manual (W303) for
details.)
S+2 00 64 Response monitoring time = 64 (Hex) specifies 10.0 seconds
S+3 00 0B Number of bytes of command data beginning with word S+4 =
32 (Hex) specifies 50 bytes
S+4 28 01 EXPLICIT MESSAGE SEND command code = 2801 (Hex)
S+5 02 1E Slave node number = 02 (Hex)
WRITE BYTE DATA command service code = 1E (Hex)
S+6 00 2F Class ID = 002F (Hex)
S+7 00 01 Instance ID = 0001 (Hex) specifies data area
S+8 0A 00 Starting write address = 000A (Hex) specifies IR 010
Address L = 0A (Hex); Address H = 00 (Hex)
S+9 HH LL These words contain the data to be written to slave words
IR 010 to IR 029. When the WRITE BYTE DATA command is
to :
executed from an OMRON Master, the bytes are written to the
S+28 HH LL
Slave in the same order (HH LL) in which they appear in the
Master.
• Destination Information
Word Contents
(Hex)
D 00 29 Master Unit's unit number = 00
Number of words of command data beginning with word S = 29
(BCD) specifies 29 words
• Response Words (The results are stored as follows.)
Word Contents
(Hex)
DM 2000 28 01 EXPLICIT MESSAGE SEND command code = 2801 (Hex)
DM 2001 00 00 Normal completion code = 0000 (Hex)
DM 2002 00 02 Number of bytes received = 02 (Hex) indicates 2 bytes
(This is the number of bytes from D+3 to the end.)
DM 2003 02 9E Slave's node number = 02 (Hex)
READ BYTE DATA response service code = 9E (Hex)
63
0
2
Function
Function
Function
Function
Section 6-3