With the ZEN-20 I/O you get in one unit 12 Inputs and 8 Outputs relays or transistor. Herewith you can do a lot of bigger scale automation whereas the 10 I/O versions are just to short of I/O’s. The 20 I/O unit is available in three different versions starting from C1 with LCD display, control/ program buttons, calendar and clock or C2 with LED status indication or C3 same as C1 but fixed I/O.
Ambient temperature:0°C to 55°C (-25°C to 55°C for ZEN-20C2 models (LED))
Ambient storage:-20°C to 55°C (-40°C to 75°C for ZEN-20C2 models (LED))
Control method:Stored program control
I/O control method:Cyclic scan
Programming language:Ladder diagram
Program capacity:96 lines (3 input conditions and 1 output per line)
LCD display:12 characters x 4 lines, with backlight (LCD-type CPU unit only)
Operation keys:8 (4 cursor keys and 4 operation keys) (LCD-type CPU unit only)
Super-capacitor holding time:2 days min. (25°C)
Battery life (ZEN-BAT01):10 years min. (25°C)
Calendar & Clock function:Accuracy: ±15 s/month (at 25°C) if applicable
ZEN-20C2AR-A-V2
ZEN-20C2DR-D-V2
ZEN-20C2DT-D-V2
ZEN-10C3AR-A-V2
ZEN-10C3DR-D-V2
ZEN-20C3AR-A-V2
ZEN-20C1AR-A-V2
ZEN-20C1DR-D-V2
ZEN-20C1DT-D-V2
ZEN-10C2AR-A-V2
ZEN-10C2DR-D-V2
ZEN-10C2DT-D-V2