I work for a systems integrator and have successfully implemented both AB and Siemens. I've used PLC5, SLC5/0x and Logix. I've used Siemens S7 300.
Personally I found the Siemens very difficult to use. I didn't find the languages to be similar at all. Siemens has two different locations for...
I had some thoughts...
I personally use your TEST0001 bit methodology, and it works well for me. I copy the code onto a new branch on the same rung. I use an XIO to disable the old code, and an XIC to enable the new code. Forcing the bit turns enables the old code. The second advantage here...
I can't speak for the other systems, but given your situation there are some clear advantages with RSView. First, it has been my experience that like plays well with like. Theoretically, since both your controllers and visualization products come from the same place, integration will be...
I don't know if this is helpful...
On many Compact 984, the second DB9 port is the Modbus Plus port. When Modbus Plus communications are ok, the led next to this port flashes continously and rapidly. When Modbus Plus comms are not good, it blinks in a specific pattern that indiciates a...
