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[2] Communication delay time
The communication data on the ME-NET may have the delay shown below.
Delay of input module
Time required for PC to detect input state (one operation cycle max.)
Operation time of sending PC (one operation cycle)
Time to complete sending of operation result (one communication cycle max.)
Time required for receiving PC to write receive data in PC data memory (one operation cycle max.)
Operation time of receiving PC (one operation cycle)
Delay of output module
Communication delay time is the total time of to above.
The buffer memory contents of the JW-21MN is renewed for each PC operation cycle.
Therefore, a contact point which turns "ON" for only one operation cycle of a PC may
not be transferred.
PC00
PC01
Remarks
(Communication)
JW-21MN
JW-21MN
Operation cycle