PLC Emulation to test HMI
Posted 21 September 2012 - 06:10 PM
Posted 21 September 2012 - 08:03 PM
The best thing is to have an Emulator for the type of controller you plan to use.
Some emulators can communicate with the outside world over serial (RSEmulate 500) and Ethernet, and some are limited to their own tools or special OPC drivers (like RSLogix 5000 Emulate).
One thing you might try is PLCSim. This started as a Modbus emulator but added some DF1 capability to emulate Allen-Bradley SLC-500 controllers.
What type of controller are you planning to use ?
Posted 23 September 2012 - 11:45 AM
Thank you for the tip,
Posted 23 September 2012 - 07:45 PM
Posted 24 September 2012 - 10:28 PM
The built in emulator can communicate with a real PLC through your PC serial port in most cases.
The built in emulator can do all sorts of cool stuff all by itself, even with PLC source data missing or done completely with internal tags.
The built in emulator in Crimson 3.0 requires a 32 bit operating system to install and run at all.
I use it for test apps at work where I have RSLinx Classic Gateway, so I have all sorts of quick display programs I run to monitor things. I can double click a cd3 icon, hit download and in a few seconds I can monitor it for up to 15 minutes just as if the real hardware were running.
I have not tried to use a real G3 with an emulated PLC, but I suspect the emulated G3 will be better for you anyway, and the real hardware will run exactly the same when you get it properly connected and downloaded.
I did have problems getting it to work within XP mode in Windows 7 Pro x64, but I have heard it works fine with a virtual machine (32 bit) running in VMWare through the hardware serial port to a real PLC. The same should be true for a software PLC and redirector software.
Posted 27 September 2012 - 01:50 PM
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