visualbasictorslogix

[Doug53 0]

Hello,

I am a new rslogix and visual basic user.  I am trying to write a visual basic 6 (will upgrade later) program to communicate with a ladder logix program (rslogix 500/rslinx 2.57) to control a micrologix 1761 microcontroller.  I want to build and control a start/stop switch for any output.  Easy enough in rslogix.  But what I want to do is create an HMI in visual basic and have it control the switch.  I have loaded mscomm32 but what I don't seem to understand is how the visual basic program is going to communicate with the rslogix or rslinx.  Do the button programs in visual basic need to show the bit storage places in rslogix.  If so how is this set up?  Can someone enlighten me?  PS be easy on me as I am an old man and it takes me some time to understand.