04/96
Siemens AG 2001 All rights reserved 6FC5198–jAB40
3–2
SINUMERIK 840C / SIMODRIVE 611–D (DA)
MeaningFigure
4 ADS interface power-up, MMC waits for ‘1’ from NC
5 ADS interface power-up state
6 ADS interface power-up state
7 Interface active (OKAY)
8 MMC powered without NC
9 State which causes removal of the driver
Error detection The cause of errors in the NCK area are displayed on the 386 NCK CPU as far as
NCK CPU possible by the flashing rhythm of the red LED at the front of the NCK CPU. On
the 486 CPU, these error detections are now displayed on the 7-segment display
at the front of the CPU module (2 digits, both numbers alternating). If the NC con-
tinues to run and simply intends to indicate failure of the link to the MMC, this is
still signalled by the red LED flashing 11 times. In the case of errors designated by
R! it is essential to read out from the alarm log of the MMC which register con-
tents of the NCK CPU were logged at the time of failure (this makes it much ea-
sier to identify the cause of error).
Error code Cause
1 The selected boot bank (switch position on the 486 CPU) is either not
programmed or incorrectly programmed. Switch position 0 must always
function otherwise the module is defective.
2 DRAM error on NCK CPU, defective during memory test after Power
On
4!RParity error in the DRAM
7!RUndefined NMI
8!RNMI caused by push button on CSB or CPU (486) or V24 (486)
9!RNMI caused by timeout (CPU local)
10 !R NMI caused by timeout on link or local bus
11 Failure of link to the MMC (this is indicated simply by flashing, also on
486 CPU)
14 !R NC processor exception (commonly known as software crash)
15 !R Internal hardware fault
16 Boot transfer error (ADS transport)
17 Boot transfer error (I code protocol)
18 Faulty file booted (OMF format)
19 Faulty file booted (illegal address area)
20 Wrong file started as last in the loading list (no starting information)
21 Link area between boot EPROM and loaded system was illegally
overwritten (presumably software error in the loaded system program).
Remedy: Reboot
END OF SECTION
3 Error Display on CPU
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