Omron CS1W-RPT01 Benutzerhandbuch

The following diagram indicates the data flow which will yield the maximum
delay time from the time SEND(90) is executed by the user program to the
time the Controller Link Unit stores the data in the destination Unit’s memory.

Max. transmission delay = Link Unit servicing interval (source node) + Trans-
mission processing + Communications cycle time + Transmission delay +
Reception processing + Link Unit servicing interval (destination node).

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

Responses:

Number of words transferred 

×

 0.00125 ms + 3 ms

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

Transmission delay time varies with the baud rate.

Responses:

Number of words transferred 

×

 0.00125 ms + 2.3 ms

Note The I/O response time can increase due to noise or restrictions on the number

of frames that can be transmitted while the data link is operating.

SEND(90) 
executed

Link Unit servicing
(source node)

Transmission processing

Communications cycle

Data stored

Link Unit servicing (destination 
node)

Transmission delay

Max. transmission delay

Reception processing

2 Mbps

Number of words transferred 

×

 0.08 + 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