User`s manual

Remote I/O (master station) function
9-9
9
(2) 1 cycle operation of the PC
(3) Timing in the case of 1 cycle time of the PC is longer than required transfer time.
PC hardware check
PC I/O processing
Completion of
communication
Remote I/O master station
Data exchange with RAM
Remote I/O
communication process
Data exchange with
data memory
PC processing
NO
YES
Completion of remote
communication
Control section processing
NO
YES
JW-32CUM1
General purpose communication section
(remote I/O master station)
Remarks
- The JW-32CUM1 communicates with the remote slave station during PC processing.
PC cycle
Remote I/O transfer processing Remote I/O transfer processing
Exchange data with buffer memory
PC side I/O processing
PC side I/O processing
PC processing time
Remarks
- The time required to exchange data with the buffer memory is approximately 0.2 ms, maximum.