PC-PID's Multiloop Controller Software
The pCon multiloop controller software provides auto-tuning temperature or process PID control up to 128 loops for approximately $22 per loop. A free trial version can be downloaded from the company's web site. It uses Excel files as its database, can be integrated with HMI programs, and can be remotely controlled by a PLC. I/O sensors, outputs, relays and PLCs can be connected locally or remotely using OPC.
PC-PID: 717-671-1566; www.pc-pid.com