Omron CS1W-CLK12-V1, Operation Manual

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121
Selecting Communications Instructions Section 6-2
6-2-1 Message Service Operations
Note If a computer is receiving commands, a program is required at the computer
for sending back responses.
6-2-2 Message Service Specifications
Instruction Local
node
Remote node Communications
contents
Data
length
Broadcasting Network connec-
tions
CS,
CVM1, or
CV
CS,
CVM1, or
CV
Computer
SEND and
RECV Yes Yes Yes (See
note.) Read to and write
from all I/O memory
areas. 990 words
max.
(1,980
bytes) SEND only (no
response) Yes (up to three lev-
els including local
network), via CVM1
or CV-series.
CMND
(See note.) Yes Yes Yes (See
note.) Data read/write:
Read to and write
from all I/O memory
areas.
Read PLC model.
Read status data.
Read time data.
Read and write File
Memory data.
Read PLC mode.
PLC Control:
Change PLC mode.
Forced set/reset
Clear PLC errors.
2,012
bytes
max. Yes (no
response)
Item Specifications
Transmission format 1:1 SEND, RECV, or CMND
1:N SEND or CMND (broadcast)
Packet length SEND: 990 words (1,980 bytes) max.
RECV: 990 words (1,980 bytes) max.
CMND: 1,990 bytes max.
Data content SEND: Command and response for a request to
send data are transferred.
RECV: Command and response for a request to
receive data are transferred.
CMND: A wide range of command/response
data can be sent.
Number of simultaneous
commands One for each of eight ports (ports 0 to 7).
Response monitor time 0000: Default setting (2 s)
0001 to FFFF: User settings (in increments of
0.1 s, 0.1 to 6553.5 s)
Number of retries 0 to F: 0 to 15