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ZEN-20C

Extended flexible automation

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.

As of March 31, 2024, the ZEN-Series Controller has been discontinued. We recommend transitioning to our CP2E-E Series controller as a replacement option. You can explore our page CP2E | OMRON, Europe.

For more information on the discontinuation, you can refer to our Product Lifecycle Status | OMRON, Europe page by simply enter ‘’ZEN’’ into the search bar.

Please note that the ZEN product page will remain accessible until March 31, 2025. Additionally, if you require access to ZEN documents after the webpage’s removal, you can still find them using the search function on our website.

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Specifications & ordering info

Ordering information

Name	Number of I/O points	Inputs (I)/ power supply		Outputs (Q)		Type	LCD, buttons (B), calendar and clock	Analog input/ comparators (A)	8-digit counter (F)/ comparators (G)	No. of bits 16	No. of bits 8	Size in mm (H×W×D)	Order code
CPU units	20	12	100 to 240 VAC	8	Relays	LCD	yes	-	-	Work bits (M) Holding bits (H) Timers (T) Counters (C) Weekly timers (☐) LCD display (D) Timer/counter comparator (P)	Holding timers (#) Button input (B)	90×122.5×56	ZEN-20C1AR-A-V2
	Expandable up to 44 I/O		100 to 240 VAC			LED	-	-	-				ZEN-20C2AR-A-V2
			12 to 24 VDC			LCD	yes	yes / 4	yes / 4				ZEN-20C1DR-D-V2
						LED	-	yes / 4	yes / 4				ZEN-20C1DR-D-V2
					Transistors	LCD	yes	yes / 4	yes / 4				ZEN-20C1DT-D-V2
					Transistors	LED	-	yes / 4	yes / 4				ZEN-20C2DT-D-V2
	Fixed I/O		100 to 240 VAC		Relays	LCD	yes	-	yes / 4				ZEN-20C3AR-A-V2
	Fixed I/O		12 to 24 VDC		Relays	LCD	yes	yes / 4	yes / 4				ZEN-20C3DR-D-V2

Specifications

Item	Specifications
Item	ZEN-20C_AR-A-V2	ZEN-20C_D _ -D-V2
Power supply voltage	100 to 240 VAC, 50/60 Hz	12 to 24 VDC (DC ripple rate: 5%)
Rated power supply voltage	85 to 264 VAC	10.8 to 28.8 VDC
Power consumption	11 VA max.	5 W max.
Inrush current	4 A max.	30 A max.
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

Accessories

Name	Description	Order code
Memory Cassette	EEPROM (for data security and copying)	ZEN-ME01
Battery unit	Battery (keeps time, date and bit values for 10 years at 25°C)	ZEN-BAT01
Connecting Cable	For the programming software, RS-232C cable, 9-way `D' connector for PC	ZEN-CIF01
USB-Serial conversion cable	USB-Serial conversion cable (to be used in combination with ZEN-CIF01)	CS1W-CIF31
ZEN support software	Runs on Windows ME, 2000, XP, NT4.0 Service Pack 3, Vista	ZEN-SOFT01-V4

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