Omron CS1W-RPT01 Manuale Utente

Note Be sure to take into account the time required for data links and program exe-

cution, which are not included in the following example.

Max. transmission delay = Link Unit servicing interval (source node) + Link
service processing (source node) + Transmission processing + Communica-
tions cycle time + Transmission delay + Reception processing + Link Unit ser-
vicing interval (destination node) + Link service processing (destination node)

Link servicing depends on the execution mode of the PLC. The execution
modes on the source and destination modes need not be the same.

For synchronous execution, links are serviced once per PLC execution cycle.
For asynchronous execution, links are serviced according to the peripheral
servicing interval. Refer to the operation manual for the PLC for details. Refer
to the CVM1 and CV-series PLCs Operation Manual: Ladder Diagrams
(W202) or CS/CJ-series PLCs Instructions Reference Manual (W340) for
details.

Link service processing is the same as the PLC’s peripheral servicing and is
approximately 1 ms for Controller Link Units.

Number of words transferred 

×

 0.00075 ms + 2 ms

See 8-2 Communications Cycle Time (on page 251).

Transmission delay time varies with the baud rate.

SEND(192)/SEND(90) 
executed

Link Unit servicing (source node)

Transmission processing

Communications cycle

Data stored

Reception processing

Max. transmission delay

Link Service processing (source node)

Link Service processing 
(destination node)

Transmission delay

Link Service 
processing 
(source node)

2 Mbps

Number of words transferred 

×

 0.008 + 0.112 ms

1 Mbps

Number of words transferred 

× 

0.016 + 0.224 ms

500 Kbps

Number of words transferred 

×

 0.032 + 0.448 ms