CV500BC051 Omron, CV500BC051 Datasheet - Page 209

• Manufacturer Part Number: CV500BC051
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BC051

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

CVM1 and CV-series PLCs
184
Introduction
CMND(194)
S
D
C
C+1
C+2
C+3
C
15
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
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
FE (Hex):
Note
0
Destination network address
00 (Hex): Local network
01 to 7F (Hex): 1 to 127
8 7
8 7
CMND sends “n” bytes of command data beginning with S (the beginning
word for storing command data at the source node) to node N. In return, “m”
bytes of response data are stored at the source node beginning with D (the
beginning word for storing response data).
1. When using CVM1 and CV-series PLCs manufactured prior to April 1996,
2. With the message service, there is no guarantee that a message to a des-
PLC's CPU Unit
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.
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
using the message service, it is advisable to prevent this situation from oc-
0
0
0
0
(02 to 0F (Hex) are used
when using Controller Link
Support Boards for PCI
Bus only.)
Unit connected to network
C+4
C+5
15
15
(S –1)
(D –1)
+
+
S
D
m
2
n
2
0: Response required
1: Response not required
0
15
11 8 7
10 8 7
Source node
Communications port number: 0 to 7 (Hex)
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
3
3
"n" bytes
of com-
mand
data
"m" bytes
of
response
data
0
0
Number of retries
0 to F (Hex): 0 to 15 retries
Command
Response
Destination node N
Execution
Analysis
Section 6-1