Host Engineering Forum

General Category => Do-more CPUs and Do-more Designer Software => Topic started by: eman5oh on September 29, 2017, 09:39:31 PM

Title: Checksum or hash of loaded ladder code on T1H-DM1E
Post by: 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?
Title: Re: Checksum or hash of loaded ladder code on T1H-DM1E
Post by: BobO on September 29, 2017, 10:12:25 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.
Title: Re: Checksum or hash of loaded ladder code on T1H-DM1E
Post by: eman5oh on October 03, 2017, 02:22:04 PM
What DST is stored?
Title: Re: Checksum or hash of loaded ladder code on T1H-DM1E
Post by: BobO 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.