Diagnostics Information At The Devices; Leds - Siemens SIMATIC S7-1500 Function Manual
Diagnostics
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Also See for SIMATIC S7-1500:
- System manual (523 pages) ,
- Function manual (402 pages) ,
- Manual (188 pages)
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Setting and determining system diagnostics
4.2 Options for displaying system diagnostics
4.2.1
Diagnostics information at the devices
4.2.1.1
LEDs
Overview
All hardware components, such as CPUs, interface modules and modules, provide
information about their operating mode as well as internal and external errors through their
LEDs. Diagnostics by means of LEDs is an initial tool for error localization.
The graphics below include examples for the arrangement of LEDs on some modules.
Table 4- 1
LED displays on the modules
CPU 1516-3 PN/DP
①
RUN/STOP LED
(two-colored LED: green/yellow)
②
ERROR LED
(single-colored LED: red)
③
MAINT LED
(single-colored LED: yellow)
④
X1 P1
(two-colored LED:
green/yellow)
26
IM 155-5 PN ST
RUN LED
(two-colored LED:
green/yellow)
ERROR LED
(single-colored LED: red)
MAINT LED
(single-colored LED:
yellow)
X1 P1
(single-colored LED:
green)
DI 32x24VDC HF
RUN LED
(single-colored LED:
green)
ERROR LED
(single-colored LED: red)
without function
LED CHx
(two-colored LED:
green/red)
Function Manual, 11/2019, A5E03735838-AF
PS 25W 24VDC
RUN LED
(single-colored LED:
green)
ERROR LED
(single-colored LED: red)
MAINT LED
(single-colored LED:
yellow)
Diagnostics
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