Im 308-C And Cpu Power-Up - Siemens SIMATIC S5 Manual
Distributed i/o system
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- Manual (396 pages) ,
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- Operating instructions manual (43 pages)
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IM 308-C – starting ET 200
CPU and IM 308-C
power-up
11-6
Fig. 11-1 illustrates CPU and IM 308-C power-up when the power supply is
switched on. The CPU and IM 308-C switches are already set to RUN/RN
and the error-reporting mode is "QVZ" (time-out).
Switch on power supply for CPU and IM 308-C
IM 308-C runs up, enters the parameterized DP
slaves in the overview diagnostics and prevents
the CPU from powering up (CPKLA and PEU)
Station connecting cycle: IM 308-C connects the
IM 308-C removes addressable DP slaves from
overview diagnostics and enters them in
Yes
IM 308-C releases CPU power-up
(CPKLA and PEU cleared)
CPU powers up and clears BASP
Data can be exchanged between CPU
and distributed I/O
Figure 11-1 IM 308-C and CPU power-up
IM 308-C and CPU power up
CPU outputs BASP
DP slaves to the bus
data-transfer list
Have all DP slaves
acknowledged?
No
No
Power-up delay
expired?
Yes
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
- Quick Links:
- IM 308-C Master Interface
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