Omron CPM2C-S100C Operation Manual page 156

Explicit Message Communications
C200HW Master in a CS Series PC: Writing Data with IOWR
Example Network
Conditions
IOWR(––) Operand Details
[IOWR C S W]
134
This example shows the instruction operands and results of the IOWR com-
mand when 20 words of data are written from a Master mounted in a CS-
series PC to words IR 200 to IR 219 in a Slave.
Refer to the DeviceNet Masters Unit Operation Manual (W379) for details on
explicit messages, and refer to the SYSMAC CS/CJ Series Communications
Commands Reference Manual (W342) for details on IOWR(––).
Master's node number:
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
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 CS Series Operation Manual (W339) for details.)
S+2 00 64 Response monitoring time = 10.0 seconds
S+3 00 32 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 02 Instance ID = 0002 (Hex) specifies data area 2
S+8 C8 00 Starting write address = 00C8 (Hex) specifies IR 200
Address L = C8 (Hex); Address H = 00 (Hex)
S+9 HH LL These words contain the data to be written to Slave words
IR 200 to IR 219. 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)
W 00 00 Master Unit's unit number = 00 (Hex)
W+1 00 29 Number of words of command data beginning with word S+0 =
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)
WRITE BYTE DATA response service code = 9E (Hex)
(––)
63
2
Function
Function
Function
Function
Section 6-3