Universal control panel, for electrically or pneumatically actuated valve systems, needs no programmable controller and eliminates maze of wires associated with hardwired relays. Control relay and expansion modules provide 20 digital inputs, 2 analog inputs, and 10 relay outputs rated to 10 A resistive. Panel includes 8 timers, 8 counters, 4 real-time clocks (4 channels/clock), and 8 display messages. LCD shows circuit diagrams and function updates.