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Introduction
Section 6-1
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.
CVM1 and CV-series PLCs
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).
Note
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.
CMND(194)
S
D
C
"n" bytes
of com-
mand
data
"m" bytes
of
response
data
S
15
0
Local node
Remote node N
(S
−
1)
+
n
2
D
(D
−
1)
+
m
2
Command
Response
Analysis
Execution
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.
C+1
C+4
0
0
Number of retries
0 to F (Hex): 0 to 15 retries
0: Response required
1: Response not required
C
"n" bytes of command data
0000 to 07C6 (Hex): 0 to 1,990 words
0
"m" bytes of response data
0000 to 07C6 (Hex): 0 to 1,990 words
15
0
C+3
15
8 7
0
Remote unit address
00 (Hex):
PLC's CPU Unit
01 (Hex):
Computer (user program)
10 to 1F (Hex): Unit nos. 0 to 15
FE (Hex):
Unit connected to network
15
11 8 7
3
0
15
10 8 7
3
0
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.
C+2
0
0
15
11
8 7
0
Remote network address
00 (Hex): Local network
01 to 7F (Hex): 1 to 127
C+5
15
12
*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.
Communications port No.
0 to 7 (Hex)
S: Beginning command storage word
D: Beginning response storage word
C: Beginning control data word
• • •
• • •
• • •
Summary of Contents for CS1W-CLK12-V1
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 11: ...xii ...
Page 59: ...42 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 62: ...45 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 91: ...74 CVM1 and CV series Optical Ring Controller Link Units Section 4 2 ...
Page 108: ...91 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 125: ...108 Checking Data Link Status Section 5 4 ...
Page 181: ...164 Setting Routing Tables Section 7 4 ...
Page 199: ...182 Memory Areas Related to Duplex Operation Section 8 6 ...
Page 275: ...258 Handling Precautions Section 10 7 ...
Page 298: ...281 CS series Optical Bus Controller Link Units Appendix C Dimensions Unit mm 101 35 130 ...
Page 299: ...282 CS series Optical Bus Controller Link Units Appendix C ...