SFC 64        Read out the System Time in ms

This system function only has got one out-TIME-parameter where the system time is displayed in ms.

Please note that in a S7 this time starts again with zero after about 48 days so that unexpected results can occur when calculation a time difference. At the moment TrySim can only simulate 24 days so that you are not able to test this effect with TrySim.

See also:

SFC1 Read Out the Clock

System Functions

S7-300 and S7-400 are registered trademarks of the Siemens AG.