Snap-7 and its effect on PLC cycle time

[SachinYadav74]

when PLC is executing it's program and suppose it has cycle time of 30mS. When we try to get data from PLC using Snap-7, will that have effect on PLC cycle time.? Will it increase the cycle time from 30mS to 40mS?

[spreeker]

Hai, I think the networking is done separately of the cpu in its own 'module'. I wrote a program te read basically 'everything' from a cpu taking up to a second. No problems. But then again the PLC's I worked with never had a super busy complex program running. Just a lot of stuff connected. I would just test it out! And there is probably some documentation out there describing the behaviour of your plc version and setup. Stephan.

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