Watlow PM LEGACY™ Limit Controller
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Chapter 8 Features
Acyclic Data
is a message that can be sent and or received at any time where they typically have a
lower priority then cyclic messages. This type of messaging is typically used for the purpose of config-
uration or performing some sort of a diagnostic function.
Software Configuration
Using PM LEGACY™ Limit Configurator Software
To enable a user to configure the PM control using a personal computer (PC), Watlow has provided
free software for your use. If you have not yet obtained a copy of this software and have a connection
to the Internet, simply click on the link below and download the software from the Watlow web site
free of charge.
http://www.watlow.com/en/resources-and-support/Technical-Library/Software-and-Demos
Once the software is installed double click on the PM LEGACY™ Limit Configurator icon placed on
your desktop during the installation process. If you cannot find the icon follow the steps below to run
the software:
1. Move your mouse to the “Start” button
2. Place the mouse over “All Programs”
3. Navigate to the “Watlow” folder and then the sub-folder “PM LEGACY™ Limit Configurator”
4. Click on PM LEGACY™ Limit Configurator to run.
The first screen that will appear is shown below.
If the PC is already physically connected to the PM control click the next button to go on-line.
Note:
When establishing communications from PC to the PM controller, an interface converter will be re-
quired. The Standard Bus network uses EIA-485 as the interface. Most PCs today would require a
USB to EIA-485 converter.
The PM must be configured using the keypad or serial EIA-485 connection. The software will not
configure the controller via the other fieldbus options. As can be seen in the above screen shot the
