alphaparson t1_j57up08 wrote

The system is a number of controllers that are controlled by a computer system with the failed software. The controllers and communication wiring is the expensive part and is already done. Pull the old controllers and install new. Make sure that the new controllers have manual override switches. Install a new computer and program. The interconnecting wiring was the expensive part. ALSO. Controllers can be installed that are open protocol, any master computer can talk to it.