Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

Join our "Ask Me About" community webinar on May 20th at 9 AM CET and 5 PM CET to explore cybersecurity and monitoring for Data Center and edge IT. Learn about market trends, cutting-edge technologies, and best practices from industry experts.
Register and secure your Critical IT infrastructure

DCE modbus scan once a day

EcoStruxure IT forum

Schneider Electric support forum about installation and configuration for DCIM including EcoStruxure IT Expert, IT Advisor, Data Center Expert, and NetBotz

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results forΒ 
ShowΒ Β onlyΒ  | Search instead forΒ 
Did you mean:Β 
  • Home
  • Schneider Electric Community
  • EcoStruxure IT
  • EcoStruxure IT forum
  • DCE modbus scan once a day
Options
  • Subscribe to RSS Feed
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Experts
User Count
Cory_McDonald
Admiral Cory_McDonald Admiral
124
Jef
Admiral Jef Admiral
108
gsterling
Captain gsterling Captain
71
APC_Steve
Captain APC_Steve Captain
62
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to EcoStruxure IT forum
Solved
DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:42 PM . Last Modified: β€Ž2024-04-05 12:09 AM

0 Likes
15
1588
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:42 PM . Last Modified: β€Ž2024-04-05 12:09 AM

DCE modbus scan once a day

So according to my DCE Modbus TCP device list, DCE only scans the Modbus devices once a day.

Any thoughts on this? How to troubleshoot?

Regards,

J

(CID:130097691)

Labels
  • Labels:
  • Data Center Expert
Reply

Link copied. Please paste this link to share this article on your social media post.

  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
4
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Dear John Smith,

An interesting problem... What is your version of DCE software?

Have you tried restarting the DCE server?

Can you do DCE capture logs according to topic ?

Can you then analyze the text file /var/log/messages and identify any errors or problems with your TCP/IP Modbus device (by its IP address and Slave ID)?

With respect and wait for your answer.

(CID:130681868)

See Answer In Context

Reply

Link copied. Please paste this link to share this article on your social media post.

Replies 15
DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:09 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:09 AM

Hi John Smith, thanks for posting. Let's hope you find your answer here. 

Kind regards Ditte

(CID:130099183)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Dear John Smith,

Please describe in detail your question: do you want to poll the TCP/IP Modbus devices only once a day, or does your DCE-server have problems with the polling interval of the TCP/IP Modbus devices?

With respect.

(CID:130680473)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

My DCE only scans the devices once a day and I would like them to scan on the interval chosen (every 5 minutes).

When I look at the "Last Scan Time" it usually only shows once in the morning and that is it. Looking at the trend graphs, it shows the data point only once a day...

DCE is NOT scanning the device every 5 minutes as it should.

(CID:130680960)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
4
1590
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Dear John Smith,

An interesting problem... What is your version of DCE software?

Have you tried restarting the DCE server?

Can you do DCE capture logs according to topic ?

Can you then analyze the text file /var/log/messages and identify any errors or problems with your TCP/IP Modbus device (by its IP address and Slave ID)?

With respect and wait for your answer.

(CID:130681868)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

In response to DCIM_Support
0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Apparently there is a Known Modbus Scanner issue which was fixed in DCE 7.5. It doesn't go into detail but maybe with the device offline or a register issue, it froze up.

 

Improvements to Modbus polling Modbus polling is no longer affected by prolonged network disruptions.

(CID:131958890)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

In response to DCIM_Support
0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Dear John Smith,

I'll correct you: in fact, these fixes were made in DCE-7.4.3 πŸ˜€. For example, see my answer in topic .

With respect.

(CID:131958908)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

In response to DCIM_Support
0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Thanks again! I am running 7.4.1 so, yes I need to upgrade. Thanks again for the quick reply as well!

(CID:131958914)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

In response to DCIM_Support
0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:43 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Ok, thanks for the good feedback πŸ˜€.

(CID:131958919)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

It is loaded with Errors in /var/log/messages

The errors are:

Modbus_session_open: open session failed - Too many open files

nbModbusScannerCreateScan: Error creating Modbus session on

failscan:Marking scan of with SCAN_FAILED resultcode.

Error creating scan for :MODBUS-TCP, No protocol scanner found

nbVarLibAccessContextCreateInNS: cannot open /dev/nbVariablesFree

 

all the are the same so I am going to go delete that device and see what that does.

(CID:130681811)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Dear John Smith,

I would, after all, reboot the DCE-server first and watch for some time for the problem TCP/IP Modbus device.

With respect.

(CID:130681815)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

That seems to have fixed my issue! The whole server is working better and the device scans have been re-scanning every few minutes now!

Thanks for the help! I will keep watching it and see.

I have another issue where the device discovery is slow and shows "initializing" for a long time but I will post that in another question.

Regards,

J

(CID:130681855)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
0
1588
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Ok, thanks so much for the good feedback πŸ˜€.

(CID:130681866)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

0 Likes
1
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

So it worked but there are other issues. Does someone here know what these errors mean?

 

nbModbusScan: Modbus_session_open: open session failed - Too many open files

nbModbusScan: nbVarLibAccessContextCreateInNS: cannot open /dev/nbVariablesFree

(CID:131336303)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

In response to DCIM_Support
0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2024-04-05 12:08 AM

Dear John Smith,

I will not prove, but the reason for the above problems can be, for example, problems with JVM, similar to those described in topic . What is your version of DCE software?

With respect.

(CID:131337115)

Reply

Link copied. Please paste this link to share this article on your social media post.

DCIM_Support
Picard DCIM_Support
Picard

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2023-10-22 01:26 AM

0 Likes
0
1589
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: β€Ž2020-07-04 04:44 PM . Last Modified: β€Ž2023-10-22 01:26 AM

superhero.png

This question is closed for comments. You're welcome to start a new topic if you have further comments on this issue.

Reply

Link copied. Please paste this link to share this article on your social media post.

To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings Β© 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of