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SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
3.2.2
Power-Good-Signal
The Power-Good-Signal of the power supply input (PWRGD-IN) can be
switched onto the Power-Good-Signal of the power supply output
(PWRGD-OUT) of the bus board via a 2-pin conenctor (J400, see below). A
supplementary device; for example, a monitoring module can be logged in.
1
2
Plug connector: J401
open
inserted
no module connected (standard setting)
Plug connector: J400
1
2
Pin 1: Power-Good from power supply
= Pin 1 of PS input (PWRGD-IN)
Pin 2: Power-Good towards CPU
= Pin 2 from PS output
(PWRGD OUT)
The Power-Good-Signal is generated on the bus board by the reset generator
if jumper J401 is open.
Plug connector: J404 always remains open.
Bus Board