Description
Is your small-scale automation project stuck between a traditional relay-logic cabinet and a full-scale, expensive PLC? The Omron ZEN-20C1DT-D-V2 provides the “Smart Relay” solution, offering 20 I/O points in a compact, 70 mm wide housing. This V2 model is the enhanced version of the original ZEN series, featuring expanded memory and improved timer/counter functions for applications like lighting control, HVAC systems, and basic pump sequencing.
Inventory Status and Commercial Logistics
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Product Condition: New Original (Factory Sealed).
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Availability: In stock at global distribution centers; ships within 24 hours.
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Lead Time: 1 to 3 business days for international express delivery.
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Warranty Protection: 12-month standard industrial warranty.
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Commercial Note: While the ZEN series is a budget-friendly automation tool, pricing fluctuates based on global supply of the -V2 logic chips. The listed price is for general reference; contact our trade desk for an official quote and bulk discounts.
Technical Specifications and Field Parameters
In field deployments of compact control systems, the “20C” series is the most popular variant because it maximizes the I/O count without requiring expensive expansion modules.
Core Hardware Parameters
| Parameter | Technical Value |
| Model Designation | ZEN-20C1DT-D-V2 |
| Supply Voltage | 12 V DC to 24 V DC |
| Total I/O Count | 20 (12 Inputs / 8 Outputs) |
| Input Type | 24 V DC (Inputs I0–I3 can be used as 150 Hz counters) |
| Output Type | Transistor (Sourcing/PNP) |
| Display | Integrated LCD (4 lines x 12 characters) with Backlight |
| Programming | Front-panel buttons or ZEN-SOFT01-V4 software |
| Real-Time Clock | Included (Calendar and Clock functions) |
Logic and Functional Capabilities
The -V2 revision adds significant internal processing power compared to the legacy units.
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Program Capacity: 40 lines of ladder logic (3 inputs + 1 output per line).
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High-Speed Functions: Unlike standard relays, the first four inputs (I0–I3) can handle pulse counting up to 150 Hz, making it suitable for basic flow meters or proximity sensor counting.
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Analog Input Potential: On this DC-powered model, inputs I4 and I5 can be configured as 0–10 V analog inputs (8-bit resolution), allowing you to monitor temperature or pressure sensors without adding an analog module.
Global Procurement and Customs Compliance Notes
Shipping compact logic controllers like the ZEN-20C1DT-D-V2 across borders requires correct classification to ensure rapid customs transit.
Trade Regulations & Compliance
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US ECCN: EAR99 (No export license required for most commercial sites).
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HS Code: 85371091 (Programmable logic controllers for voltage $\le$ 1,000 V).
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Customs Strategy: For shipments into North America or Europe, we provide a “Commercial Invoice for Customs” that details the specific “Smart Relay” classification to avoid the higher tariffs sometimes applied to complex industrial computers.
Logistics Optimization
We utilize FCA (Free Carrier) or DAP (Delivered at Place) terms. The unit is extremely lightweight (approx. 300 g), making it an ideal candidate for low-cost international air mail or express services. We ship every unit in an ESD-shielded bag within a padded carton to protect the LCD screen from pressure damage during high-altitude transit.
Engineering Notes for Field Deployments
Important Installation Note: This model uses Transistor (PNP) outputs. Do not attempt to switch AC loads directly through this unit. If you need to control 120 V AC or 230 V AC motors/valves, you must use interposing relays or choose the ZEN-20C1AR-A-V2 (Relay output version) instead.
Well, technically you can program the entire unit using the front-panel buttons, but to be frank, it is a tedious process for anything more than 5 lines of code. For professional deployment, we strongly recommend using the ZEN-SOFT01-V4 software and the ZEN-CIF01 PC connection cable. It allows you to simulate your logic on your laptop before you ever touch the field wiring—honestly, it’s a life-saver for troubleshooting.
On a recent project for a greenhouse irrigation system, we found that field technicians were grounding the DC negative to the DIN rail. While the ZEN is resilient, the -V2 model’s analog inputs (I4/I5) are sensitive to ground loops. For accurate 0–10 V readings, ensure your sensor power supply and the ZEN share a common “Single Point Ground.”
Frequently Asked Questions
Can I expand the I/O beyond 20 points?
Yes. You can add up to three ZEN-8E expansion modules to the right side of the unit, bringing the total potential I/O to 44. Just keep in mind that expansion modules do not have their own power supplies; they draw current from the main unit.
Does the -V2 support memory backup?
The unit has internal EEPROM for the program logic, but the Real-Time Clock and variable data (internal bits/timers) require the optional ZEN-BAT01 battery if you expect power outages longer than 2 days. Without the battery, your clock will reset after a weekend shutdown.
How do I request a formal quote for international delivery?
Submit your inquiry with the required quantity and your full delivery address. Our logistics team will generate a pro forma invoice within 24 hours, including estimated freight costs and lead times for your facility.
Are you planning to use the front-panel buttons for on-site logic adjustments, or will you be pre-loading the program via software?
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