News:

  • October 14, 2025, 01:35:23 AM

Login with username, password and session length

« previous next »
Pages: [1]

Author Topic: Checksum or hash of loaded ladder code on T1H-DM1E  (Read 2556 times)

eman5oh

  • Sr. Member
  • ****
  • Posts: 59
Checksum or hash of loaded ladder code on T1H-DM1E
« on: September 29, 2017, 09:39:31 PM »
Looking for a way to verify the proper code has been loaded to the plc, is there a way checksum or hash the loaded ladder code and read it with a connected c-more?
Logged

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6126
  • Yes Pinky, Do-more will control the world!
Re: Checksum or hash of loaded ladder code on T1H-DM1E
« Reply #1 on: September 29, 2017, 10:12:25 PM »
Quote from: eman5oh on September 29, 2017, 09:39:31 PM
Looking for a way to verify the proper code has been loaded to the plc, is there a way checksum or hash the loaded ladder code and read it with a connected c-more?

No, not currently.

DMLoader uses a retentive DST to verify the program. Program writes a value there during first scan.
Logged
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

eman5oh

  • Sr. Member
  • ****
  • Posts: 59
Re: Checksum or hash of loaded ladder code on T1H-DM1E
« Reply #2 on: October 03, 2017, 02:22:04 PM »
What DST is stored?
Logged

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6126
  • Yes Pinky, Do-more will control the world!
Re: Checksum or hash of loaded ladder code on T1H-DM1E
« Reply #3 on: October 03, 2017, 02:25:46 PM »
We use DST387 and DST388 as the Product ID and Product Version with DMLoader. But if all you are doing is trying to verify the program, just write a known value to whatever location you wish to read from the HMI.
Logged
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO
Pages: [1]
« previous next »