Siemens S5-135U/155U appendix Setting the Switch S5

Monitoring Module

10.3.3Setting the Switch S5

8 7 6 5 4 3 2 1

OFF

ON

ON: RDY/ is suppressed in case of fault

OFF: RDY/ is also output in case of fault

When BASP is active (ª1º signal)

RDY/ is always output

ON: PESP` monitoring on

	1s
Monitoring time	500ms
	250ms
	125ms

Select the monitoring time (between 125 ms and 1 s) by switching one of the switches S5/1 to S5/4 to ON. If none of the four switches S5/1 to S5/4 is in the ON position, for safety reasons the monitoring time has been set to 1 s.

If serial interface modules and the link between IM 304 and IM 314 are used, the PESP` monitoring is to be switched off (see Section 10.1.4: Control line faults).

Should the acknowledgement signal (RDY/) not be suppressed in the event of a fault, the switch S5/8 must be in the OFF position.

When a BASP signal is active, the RDY/ signal will always be output.

System Manual	10-13
C79000-G8576-C199-06