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2.6
LEDs
The status and error displays of the CM 1542-5 are described below.
You can find additional information on "Interrupts" in the STEP 7 online help.
You can find additional information on "Diagnostics" and "System alarms" in the function
manual on the Internet:
Link: (https://support.industry.siemens.com/cs/ww/en/view/59192926)
LED display
The following figure shows the LEDs of the CM 1542-5.
①
②
③
Figure 2-2
Meaning of the LED displays
The CM 1542-5 has 3 LEDs to display the current operating status and the diagnostics
status and these have the following meanings:
• RUN/STOP LED
• ERROR LED
• MAINT LED
CM 1542-5
Operating Instructions, 11/2018, C79000-G8976-C290-04
RUN/STOP LED
ERROR LED
MAINT LED
LED display of the CM 1542-5 (without front cover)
(one-color LED: green)
(one-color LED: red)
(one-color LED: yellow)
Product overview, functions
2.6 LEDs
19
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