Dh 485

[jeff711 0]

I am using Rs Logix 500 and I believe its V.5.2. I am hooked up to a Micrologix 1200 going thru a AIC Interface Module. There is also a PV 600 in the network. When I am online or in remote program it will disconnet at will at any time. To get back online I have to go into RSLinx, delete the driver and reconfig. By the time I get done with all this I forget what i wanted to change in the program. Some what frustrating. I have also seen this going thru a 1747- PIC. When it came time to assemble the program changes it would disconnect. Any ideas???

[Ken Roach 194]

That darn PIC driver in RSLinx is commonly unstable when you have a laptop computer with power-saving features that shut off the serial port after just a few minutes. Go through your BIOS settings and see if you can disable power management there. That might make the driver stable enough. Many users have gone to 1784-PCMK cards even for DH-485. A-B showed of a USB version of the PIC at Automation Fair but it's not on the market yet.

[Guest i_canoe]

Ken, You are correct, but my older Compac would still go to sleep or just lockup even after bios changes. Compac blames Linx. I bought a Dell Latitude and turned all the sleep function to NEVER. Now the only problems are the numerous idiosyncrasies of RSLinx. Rarely will I lose comm.

[Guest Guest]

If I were you, I would write down the change you are attempting. That way when you forget, you can look at what you wrote down.