Ken Roach
Lifetime Supporting Member + Moderator
The best way for a Visual Basic program to interact with the RSEmulate 500 program is to use RSLinx and the OPC Automation interface. This is very well documented.
You cannot use DMA. I do not think you have the budget to use the RSLinx SDK.
RSEmulate 500 can take over the serial port and emulate DF1 or DH485 protocol from that port. You could possibly connect from one serial port to another on the same machine, and use some third party communication driver.
For what purpose do you have to connect your Visual Basic program to the RSEmulate 500 program ?
You cannot use DMA. I do not think you have the budget to use the RSLinx SDK.
RSEmulate 500 can take over the serial port and emulate DF1 or DH485 protocol from that port. You could possibly connect from one serial port to another on the same machine, and use some third party communication driver.
For what purpose do you have to connect your Visual Basic program to the RSEmulate 500 program ?