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What causes a conditional command to be issued?
Viewed 1 times since Tue, Nov 28, 2006
A conditional command is useful when the same value does not need to be written to the end device continuously, but rather on change.  A conditional write command is scanned based upon its poll rate (like all other commands).  The... Read More
How can I configure the module to store and initialize input values on reset or powerup?
Viewed 1 times since Tue, Nov 28, 2006
You can initialize the input data (ReadData) with cached values from the processor on these In-Chassis modules so that these values do not get reset to 0 during a module reset or powerloss. To do this the parameter labeled "Initialize Input Image" or... Read More
Which ProSoft products can communicate with a Honeywell DCS System?
Viewed 1 times since Tue, Jan 22, 2008
Most Honeywell DCS Systems support either Serial Modbus or Modbus TCP communication.  If your application involves Rockwell Automation PACs or PLCs than consider one of our In-Chassis modules such as the MVI56E-MCM or the MVI56E-MNET.  If... Read More
What does a -36 modbus error code indicate?
Viewed 1 times since Thu, Aug 20, 2015
A negative thirty six (-36) error code is generated when we have successfully connected to a device and issued the device a Modbus request, but it has not responded to the request within the defined response time out period. This is akin to calling... Read More
What is Enron-Daniels mode?
Viewed 1 times since Thu, May 5, 2016
In some of our older Modbus products we had/have a feature called float flag. This feature, which has been renamed to Enron-Daniels mode in most of our newer Modbus products to avoid the misconception that this mode was necessary for accessing... Read More