KB Home \| Advanced Search \| News \| Ask Question
ProSoft Knowledge Base

When I increase the ReadData or WriteData array sizes in my program, all of the configuration parameter values go to 0.

Article Number: 33 | Rating: Unrated | Last Updated: Wed, Jul 9, 2014 at 9:41 PM

When controller tag array sizes are changed in the ControlLogix platform, RSLogix5000 re-initializes all of the tags within that data type. This sets all values to 0 in all tags within that group. Before changing any controller tag array sizes, the user should record all configuration parameter values, and re-enter those values after the array size has been changed.

Custom Fields

Attachments (0)

Attachments

There are no attachments for this article.

Comments

Comments

There are no comments for this article. Be the first to post a comment.

Related Articles

How to avoid slow data updates on a Modbus network with an MVI56(E)-MCM or MVI69-MCM when some Slaves are either not on-line or not functioning correctly?

Viewed 1 times since Wed, Mar 19, 2008

Baud rate entries greater than 32767 in ProSoft Modules

Viewed 1 times since Tue, Nov 28, 2006

Where is the configuration for the MVI56(E)-MCM?

Viewed 1 times since Wed, Jul 9, 2014

Apparent data corruption in 33 words of MVI56-MCM or MVI56E-MCM ReadData or WriteData arrays.

Viewed 1 times since Tue, Nov 28, 2006

What is the difference between the MVI56-MCM and the MVI56-MCMR?

Viewed 1 times since Tue, Nov 28, 2006

Bulletin 1-5165141 MVI56-MCM getting intermittent communications errors when operating on both ports

Viewed 1 times since Wed, Nov 29, 2006

I was not using both Modbus ports on my MVI56-MCM module, so I set all the port parameters for the unused port to zeros to disable the port and now my module is faulted and will not restart. Why?

Viewed 1 times since Tue, Nov 28, 2006

What is the purpose of the UseGuardBand/GuardBandTime or InterCharacterDelay parameters in an MCM module?

Viewed 1 times since Tue, Nov 28, 2006

Do the serial ports on my MVI56 module provide any electrical isolation?

Viewed 1 times since Tue, Nov 28, 2006

What is the difference between your MVI56E-MCM and MVI56E-MCMR modules?

Viewed 1 times since Tue, Jan 23, 2007