Is there any way to configure an OPII to use an output other than output 8 to communicate with thermostats? I've got three RC1000s on my system. Last Friday the house took a lightning hit, and after that, none of the thermostats were communicating with the RC1000 any more. Cycling power, doing a RAM erase of the OPII, re-writing the configuration, etc., didn't help. I also tried removing and then re-connecting the thermostats one at a time; no joy.
I built a test configuration minus the thermostats, and configured zone 16 as an auxiliary zone and output 8 as a general purpose output. Putting an EOL resistor across the screws for zone 16, I could see that it was working. However, when I tested output 8 with a voltmeter, I saw only 0.07V on the output when it was commanded on, vs. the normal 13V or so. So apparently that's why the thermostats are not communicating. The output-overload light is not on, and pressing the output reset button made no difference.
So here's the question: I tested outputs 6 and 7 and they are working. Is it possible to reconfigure the OPII firmware to use, say, output 7 for the thermostat bus instead of output 8? If not, I guess I'll have to send in my CPU board for repair.
I built a test configuration minus the thermostats, and configured zone 16 as an auxiliary zone and output 8 as a general purpose output. Putting an EOL resistor across the screws for zone 16, I could see that it was working. However, when I tested output 8 with a voltmeter, I saw only 0.07V on the output when it was commanded on, vs. the normal 13V or so. So apparently that's why the thermostats are not communicating. The output-overload light is not on, and pressing the output reset button made no difference.
So here's the question: I tested outputs 6 and 7 and they are working. Is it possible to reconfigure the OPII firmware to use, say, output 7 for the thermostat bus instead of output 8? If not, I guess I'll have to send in my CPU board for repair.