Siemens SIMATIC ET 200AL - Page 583

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8.4 IO-Link operating mode
Communication module CM 4xIO-Link 4xM12(6ES7147-5JD00-0BA0)
36 Manual, 10/2017, A5E32352322-AE
8.4
IO-Link operating mode
Display
Switching off the supply voltage 1U
S
also switches off the associated port status LED Cn.
Response to error detection
All channels which are set to "PE_MODE_PROCEED" and "PE_MODE_LAST_VALUE" in
pause mode report errors as in productive operation.
The following conditions apply to all channels (ports) which switch to a different pause mode
("PE_MODE_SHUTDOWN" and "PE_MODE_SUBST_VALUE"):
● Switching off the supply voltage U
Sn
(port) upon starting the "pause" does not lead to
generation of the alarms "Wire break" and "Short circuit".
● Error detection is not possible during the "pause" (no IO-Link device communication):
– 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- 3 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
1
• Pause substitute value (input): 0
B
• Value status "BAD"
3
D
: PE_MODE_LAST_VALUE Last value at "pause"
• Pause substitute value: Last input value
• Value status "BAD"
4
D
: PE_MODE_SUBST_VALUE Substitute value at "pause"
• Supply voltages 1U
S
and 2U
A
off
1
• Pause substitute value (input): 0
B
• Value status "BAD"
1
Supply voltage 1U
S
of the assigned port is switched off. Result: The IO-Link device is no longer
supplied with voltage.