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  1. kkzhang
  2. PLCnext Engineer
  3. Wednesday, 15 September 2021
The Siemens D410-2 DP/PN Controller cannot be scanned by PLCnext Engineer(2021.6.1 Build 4.10.294.0 or 2021.0.2 Build 4.7.1183.0). However the PN device can be found both in Netnames+ or PC WORX(6.30.2519). The controller is used to control the Weiss rotary table(TC0220T). Is there any solutions to solve this problem?
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Frank PLCnext Team Accepted Answer Pending Moderation
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Hi kkzahng,

this might be caused from a known issue with npcap, please find below a statement from the PLCnext Engineer change notes (available in the download center).

If the online-device editor is not able to find any controller or PROFINET device, it might be caused by a corrupt npcap installation. In this case, proceed as follows:
– Check the status by entering the following command in the command line shell: „sc query npcap“
– If anything other than “4 RUNNING“ is displayed in
the line “STATE“, the configuration has to be
changed.
– To do this, enter the command
“sc config npcap start=auto“ followed by the command “sc start npcap“.
If there are still no online devices found, Npcap has to
be reinstalled. To do this, proceed as follows:
– Uninstall PLCnext Engineer.
– Uninstall the Npcap software.
– Install PLCnext Engineer again.


Have agreat weekend,
Frank
Phoenix Contact Electronics Headquarter - PLCnext Runtime Product Management and Support
  1. one week ago
  2. PLCnext Engineer
  3. # 1
kkzhang Accepted Answer Pending Moderation
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Hi Mr. Frank,
Thanks for your response.
As you see in the first attachment, The PLCnext engineer could scan PN devices except this Siemens controller. The npcap function looks like working normally.
However, I also took the steps that reinstalled the npcap. The device still not on the list of PLCnext engineer--profinet-- "Online devices".
Have a nice day! Looking forward to your reply.
Attachments (2)
Frank PLCnext Team Accepted Answer Pending Moderation
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The issue were caused on a bad return of the PN device.
With the PN DCP answer of the device is also a role definition included.
The PN scan in PLCnext Engineer filters at this stage for the role "IO-Device".
In this case does the PN Device answer only with the role "IO-Controller", so the "IO-Device" role were missing and the device is therefore not shown in PLCnext Engineer.
Phoenix Contact Electronics Headquarter - PLCnext Runtime Product Management and Support
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