Siemens SIMATIC ET 200SP Equipment Manual page 38

Interrupts/diagnostics alarms
6.1 Status and error displays
Meaning of the LED displays
The following tables explain the meaning of the status and error displays. Remedial measures
for diagnostics alarms can be found in the section Diagnostic alarms (Page 39).
Table 6- 1 Status and error displays DIAG
LED DIAG
Backplane bus supply of the ET 200SP not OK
Off
CM not configured
Flashes
CM parameters assigned and no module diagnos-
tics
On
CM parameters assigned and module diagnostics
(at least one error pending)
Flashes
Information on communications module startup and diagnostics is available in the
1
CM PtP - Configurations for point-to-point connections
(http://support.automation.siemens.com/WW/view/en/59057093) function manual
Table 6- 2 Status displays TXD/RXD
LED
TX RX
Flashes Off
Off Flashes
Table 6- 3 PWR status indicators
PWR LED
Supply voltage missing
Off
Supply voltage is present and OK.
On
Additional information
Information on communications module startup and diagnostics is available in the CM PtP -
Configurations for point-to-point connections
(http://support.automation.siemens.com/WW/view/en/59057093) function manual.
38
Meaning
Meaning
Interface is transmitting
Interface is receiving
Meaning
Solution
Check or switch on the supply voltage on the CPU or
on the interface module.
---
Evaluate the diagnostics alarms and eliminate the
error.
1
---
---
Solution
• Check the supply voltage.
• Check the BaseUnit type and the wiring of the
BaseUnit.
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CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01
Solution