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S5-115F Manual
Enter subunit IDs
Connect programmer to
subunit that is to be "subunit A"
Enter subunit ID "A"
Does a programmer
error message
appear on the screen?
no
Switch PS 951 power supply
in both subunits OFF and ON again
Switch mode selector from
STOP to RUN
Read error message via COM 115F
Does the
"DB1 not in PLC"
error message appear?
yes
Return to label 1 in Figure 4-8
Figure 4-9. Flowchart for Startup: Entering the Subunit IDs
EWA 4NEB 811 6148-02
yes
no
Correct error with the help of
Appendix B in Volume 2 of the
manual
System Startup
Is the red LED on the
CPU flashing
no
(lesser STOP loop)?
yes
4-15
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