MAIN CHARACTERISTICS range of product ZELIO LOGIC product or component type MODULAR SMART RELAY COMPLEMETARY CHARACTERISTICS local display WITH number or control scheme lines 0...500 WITH FBD PROGRAMMING cycle time 6...90 MS backup time 10 YEARS AT 25 DC clock drift 12 MINYEAR AT 0...55 DC checks PROGRAM MEMORY ON EACH PWR UP [Us] rated supply voltage 24 V supply voltage limits 19.2...30 V supply current 160 MA WITH EXTENSIONS power dissipation in W 4 W WITHOUT EXTENSION reverse polarity protection WITH discrete input number 6 CONFORMING TO ENIEC 61131-2 TYPE 1 discrete input type RESISTIVE discrete input voltage 24 V DC discrete input current 4 MA counting frequency 1 KHZ FOR DISCRETE INPUT voltage state 1 guaranteed >= 15 V FOR I1...IA AND IH...IR DISCRETE INPUT CIRCUIT voltage state 0 guaranteed = 1.2 MA FOR IB...IG USED AS DISCRETE INPUT CIRCUIT current state 0 guaranteed