Omron SYSMAC CS1W-CLK13 Operation Manual page 171

Introduction
CVM1 and CV-series PLCs
CMND(194)
S
S: Beginning command storage word
D: Beginning response storage word
D
C: Beginning control data word
C
15
C
"n" bytes of command data
0000 to 07C6 (Hex): 0 to 1,990 words
15
C+1
"m" bytes of response data
0000 to 07C6 (Hex): 0 to 1,990 words
15 11
C+2 0 0
15
C+3
Remote unit address
00 (Hex):
01 (Hex):
10 to 1F (Hex): Unit nos. 0 to 15
FE (Hex):
Remote node N
00 to 3E (Hex): 0 to 62 (*1)
The same data can be broadcast to all nodes
on the network by setting the remote node address to
FF (Hex).
The range of node addresses will vary for networks
other than Controller Link Networks.
*1 Only node addresses 1 to 32 can be specified when Optical Bus Controller Link Units/Boards (CLK11) are
combined in a network with Optical Ring Controller Link Units/Boards operating in token-bus mode.
Note
148
resend processing at the node where instructions are issued. With the SEND,
RECV, and CMND instructions, resend processing is performed automatically
once the number of retries has been set, so be sure to specify a number other
than "0" for the number of retries.
CMND(194) sends "n" bytes of command data beginning with S (the begin-
ning word for storing command data at the local node) to node N. In return,
"m" bytes of response data are stored at the local node beginning with D (the
beginning word for storing response data).
0
0
8 7 0
Remote network address
00 (Hex): Local network
01 to 7F (Hex): 1 to 127
8 7 0
PLC's CPU Unit
Computer (user program)
Unit connected to network
1. When using CVM1 and CV-series PLCs manufactured prior to April 1996,
the local network address cannot be set to "00." Set a number other than
"00" as the local network address in the routing tables, and then specify
that number.
Local node
0
15
S
"n" bytes
of com-
mand
(S−1)
data
n
+
2
D
"m" bytes
of
response
data
(D−1)
m
+
2
15 12 11 8 7 3
C+4 0 0
Communications port No.
0: Response required
1: Response not required
15 10 8 7 3
C+5
Response monitor time
0000 (Hex): 2 s
0001 to FFFF (Hex): 0.1 to 6,553.5 s (Unit: 0.1 s)
If the transmission speed is slow, then setting a small
value may generate an error. The standard is approxi-
mately 4 seconds at 1 Mbps or 8 seconds at 500 kbps.
Section 6-1
Remote node N
Command
Analysis
Response
Execution
0
Number of retries
0 to F (Hex): 0 to 15 retries
0 to 7 (Hex)
0