Siemens SIMATIC ET 200SP Manual page 22

Displays and interrupts
5.1 Status and error displays of the I/O module DI 16x24VDC HA
DIAG LED
Table 5-1
DIAG LED
MT LED
Table 5-2
Channel status/channel error LED
Regardless of the parameter assignment, the green LED channel status shows the signal level
at the input terminal. It lights up starting at approximately 10 V of terminal current.
The red channel fault LED lights up when a channel diagnostics is active for an enabled
channel.
Table 5-3
LED channel
22
Diagnostics display of the DIAG LED
Meaning
The power supply of the ET 200SP HA is disrupted or switched off.
Off
Module is not configured.
Flashes
Module is configured, a diagnostics message is not pending.
On
Module is configured, at least one diagnostic message is pending.
Flashes
Status display of the LED MT
MT LED Meaning
No maintenance required.
Off
Maintenance is required, i.e. at least one maintenance event has occurred.
On
Status and error display of the LEDs channel status and channel error
LED channel er‐
status ror
Off Off
On Off
Meaning
Process signal = 0 and
● Channel disabled or module switched off
● Channel enabled and no channel diagnostics pending
● Module diagnostics pending
Process signal = 1 and
● Channel disabled or module switched off
● Channel enabled and no channel diagnostics pending
● Module diagnostics pending
Digital Input Module DI 16x24VDC HA (6DL1131-6BH00-0PH1)
Manual, 05/2017, A5E39265608-AA