Omron CS1G/H-CPUxxH Instructions Manual page 900

Network Instructions
Cycle time (First cycle)
Program execution
END(001) executed.
1. SEND(090),
RECV(098), or
CMND(490) I/O refreshing
executed.
Sends command.
2. Communications processing
during "serial communications
port servicing" (Composes and
sends FINS command.)
3-25-2 NETWORK SEND: SEND(090)
Purpose
Ladder Symbol
Variations
Note When SEND(090) is being executed, the contents of S and D are
read and a FINS command for data transmission is composed.
When RECV(098) is being executed, the content of S is read and a
FINS command for data reception is composed.
When CMND(490) is being executed, the content of S is read and the
corresponding FINS command is composed.
3. If the send processing cannot be completed in a the time available in "serial
communications port servicing" period, the processing will be continued in
the next cycle's serial communications port servicing.
4. When a response is returned, the system performs the following process-
es:
• Refreshes the destination words specified in the Network instruction
with the response data.
• Turns ON the port's Communications Port Enabled Flag.
• Refreshes the port's Communications Port Error Flag (A21900 to
A21907) and Communications Port Completion Code (A203 to A210).
3. Processing is
divided up over
several cycles.
Program execution
Peripheral
servicing
Sends data to a node in the network.
SEND(090)
S
D
C
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Cycle time (Second cycle)
END(001) executed.
I/O refreshing
4. Communications processing
during "serial communications
port servicing" (Receives
response.)
S: First source word (local node)
D: First destination word (remote node)
C: First control word
Section 3-25
Peripheral
servicing
Receives
response.
SEND(090)
@SEND(090)
Not supported
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