Siemens SIMATIC ET 200AL - Page 582

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8.3 DQ operating mode
Communication module CM 4xIO-Link 4xM12(6ES7147-5JD00-0BA0)
Manual, 10/2017, A5E32352322-AE
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8.3
DQ operating mode
Display
The channel status LEDs Qn show the output value.
Response to error detection
All channels that are in pause mode on "PE_MODE_PROCEED" report their diagnostic
status as in productive mode.
The following applies for all channels which switch to a different pause mode:
● During the "pause", error detection of "Load voltage 2L+ missing" is not possible:
– Alarms for errors already pending before the "pause" are retained.
– After the "pause" is over, the error status is updated and incoming/outgoing errors are
reported correspondingly.
Mode parameter
The following table shows the "Mode" parameter.
Table 8- 2 Mode parameter
Element
Code
Explanation
Mode 0
D
: PE_MODE_PROCEED Proceed at "pause"
• Value status "GOOD"
1
D
: PE_MODE_SHUTDOWN Switch off at "pause"
• Supply voltages 1U
S
and 2U
A
off
• Pause substitute value: 0
B
• Value status "BAD"
3
D
: PE_MODE_LAST_VALUE Last value at "pause"
• Pause substitute value: Last output value is
maintained
• Value status "BAD"
4
D
: PE_MODE_SUBST_VALUE Substitute value at "pause"
• Pause substitute value: Configured pause
substitute value is output
• Value status "BAD"
Note
Supply voltages 1U
S
and 2U
A
Supply voltages 1U
S
and 2U
A
can only be switched off separately for each module.
If all channels require switching off in the pause, the supply vol
tages are switched off.