Siemens S5-135U/155U appendix Front plate of the COR 923C

Multiprocessor Operation/Coordinators

6.5.2Settings on the Coordinator

Indicators and	Shown in Figure 6-9 are all the indicators and controls on the front plate of
Controls	the COR 923C.

Setting the Coordination Section:

S1.3 to enable/lock out the ªTestº mode

S1.4 to S1.6 to set the number of CPUs

Setting the PG Multiplexer:

S2.2 to S2.6: Base address

S3.1 to S3.8: Activating the slots to be served by the COR923C

Mode switch for RUN, STOP and TEST

ªBUS FAULTº LEDs

These are allocated to the relevant CPUs and light up when the max. value of monitored bus access time is exceeded.

ªIF FAULTº LED

indicates fault at the serial interface.

If the interface is not in use, the LED is permanently lit.

PG interface, 15-pin

Figure 6-9 Front plate of the COR 923C

Mode Switch	The mode switch on the front plate can be set to RUN, STOP and TEST.
	Please refer to Sections 6.2 and 6.3 for its functions and use.

System Manual	6-23
C79000-G8576-C199-06