Within Omron's ZEN range there are up to 4I/O to control. The basic unit is either a 10 I/O or a 20 I/O version. These basic units are available with a real time clock, an LCD screen (12 characters x 4 lines with backlight) and have 8 buttons (4 cursor and 4 operator). Each CPU can handle up to 3 expansion I/O units.
10 I/O models with 6 inputs and 4 outputs, expandable up to 34 I/O 20 I/O models with 12 inputs and 8 outputs, expandable up to 44 I/O DC power supply units have analogue input 24Vdc and 100 to 240Vac supply voltage model options Programming language: Ladder Diagram Program capacity: 96 lines (3 input conditions and 1 output per line) RTC time function: 1 to 2 mins per month accuracy Battery life: 10 years minimum (at 25°C) Ambient temperature range: 0 to 55°C
