CV500BI111 Omron, CV500BI111 Datasheet - Page 207

• Manufacturer Part Number: CV500BI111
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BI111

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6-1-2
CS/CJ-series PLCs
182
Introduction
CMND(490)
D
C
S
C+1
C+2
C+3
CMND (CVM1, CV-series, CS/CJ-series, and CQM1H-series PLCs
Only)
C
15
15
15
"n" bytes of command data
0000 to 07C6 (Hex): 0 to 1,990 words
0000 to 07C6 (Hex): 0 to 1,990 words
15
Destination node N
00 to 20 (Hex): 0 to 32 (or 00 to 3E (Hex): 0 to 62)
The same data can be broadcast to all nodes
on the network by setting the destination node address
to FF (Hex).
The range of node addresses will vary for networks
other than Controller Link Networks.
"m" bytes of response data
0
S: Source node beginning send word
D: Destination node beginning receive word
C: Source node first control data word
11
Destination unit address
00 (Hex):
01 to 0F (Hex): Computer (user program)
10 to 1F (Hex): Unit nos. 0 to 15
E1 (Hex):
FE (Hex):
0
Destination network address
00 (Hex): Local network
01 to 7F (Hex): 1 to 127
8 7
8 7
Note
The CMND instruction can be executed in the user program in a CVM1, CV-
series, CS/CJ-series, or CQM1H-series PLC to perform operations such as
reading and writing memory data from and to other nodes, reading status
information, and changing the operating mode.
CMND sends “n” bytes of command data beginning with S (the beginning
send word for storing command data at the source node) to destination node
N. In return, “m” bytes of response data are stored at the source node begin-
ning with D (the beginning receive word for storing response data).
1. With the message service, there is no guarantee that a message to a des-
PLC's CPU Unit
0
0
0
Inner Board
Unit connected to network
0
(02 to 0F (Hex) are used
when using Controller
Link Support Boards for
PCI Bus only.)
tination node will reach its destination. It is always possible that the mes-
sage may be lost in transit due to noise or some other condition. When
C+4
C+5
15
15
(S –1)
(D –1)
+
+
0: Response required
1: Response not required
S
D
m
2
n
2
0
15
11 8 7
10 8 7
Source node
Response monitor time
0000 (Hex): 2 s
0001 to FFFF (Hex): 0.1 to 6,553.5 s
(Unit: 0.1 s)
If the baud rate is slow, then setting a
small value may generate an error. The
standard is approximately 4 seconds at
1 Mbps or 8 seconds at 500 Kbps.
0
0
Communications port number: 0 to 7 (Hex)
3
3
"n" bytes
of com-
mand
data
"m" bytes
of
response
data
Number of retries
0 to F (Hex): 0 to 15 retries
0
0
Command
Response
Destination node N
Execution
Analysis
Section 6-1