OMRON CP1E Series Modules

Technical Dossier

Product Details And Specifications

OMRON CP1E Series: Comprehensive Module Range and Technical Overview

The OMRON CP1E series is a compact, cost-effective programmable logic controller platform deployed across global heavy industry sectors including chemical processing plants, oil refineries, water treatment facilities, food and beverage production lines, and building automation systems. Introduced as a successor to the CPM-series architecture, the CP1E occupies the entry-to-mid tier of OMRON's CJ/CP controller hierarchy, offering a self-contained CPU-integrated I/O design that eliminates the need for a separate backplane in small-scale control applications. Its installed base spans hundreds of thousands of units across Asia-Pacific, Europe, and the Americas, making long-term spare parts availability a critical operational concern for maintenance engineers and procurement teams.

The Evolution of CP1E Architecture

The CP1E platform was formally introduced by OMRON in the mid-2000s as a consolidation of the CPM1A, CPM2A, and SRM1 product lines. The architecture centers on a fixed I/O CPU unit with optional expansion I/O modules, supporting ladder diagram programming via CX-Programmer software. Early CP1E variants (E-type) provided basic relay and transistor output configurations without analog I/O or communications beyond RS-232C. The N-type (standard) and NA-type (advanced) sub-families introduced built-in analog I/O channels, Ethernet/IP connectivity, and USB programming ports, significantly expanding the platform's applicability in networked SCADA environments. The S-type added simplified motion control capability. Compatibility across sub-families is constrained: expansion modules are shared across N/NA/S types but are not backward-compatible with E-type CPUs. Programming files created in CX-Programmer for CP1E are not directly portable to CJ2 or NX series without conversion. As of 2024, the CP1E series is in a mature/sustained phase — OMRON continues to supply the product line but has positioned the CP1L-EL/EM and CP2E series as the recommended migration path for new designs. This makes CP1E spare parts and replacement units a high-demand category for brownfield maintenance operations.

CP1E Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked CP1E series units. Classified by sub-family and output type:

E-Type CPU Units (Basic, Relay/Transistor Output)

• CP1E-E10DR-A: 10-point CPU, 6DI/4DO relay output, 100–240VAC supply
• CP1E-E10DT-D: 10-point CPU, 6DI/4DO NPN transistor output, 24VDC supply
• CP1E-E20DR-A: 20-point CPU, 12DI/8DO relay output, 100–240VAC supply
• CP1E-E20DT-D: 20-point CPU, 12DI/8DO NPN transistor output, 24VDC supply
• CP1E-E30DR-A: 30-point CPU, 18DI/12DO relay output, 100–240VAC supply
• CP1E-E40DR-A: 40-point CPU, 24DI/16DO relay output, 100–240VAC supply

N-Type CPU Units (Standard, with Analog I/O & USB)

• CP1E-N20DR-A: 20-point CPU, 12DI/8DO relay, 2AI/1AO built-in, USB port, 100–240VAC
• CP1E-N20DT-D: 20-point CPU, 12DI/8DO NPN transistor, 2AI/1AO, USB, 24VDC
• CP1E-N30DR-A: 30-point CPU, 18DI/12DO relay, 2AI/1AO, USB, 100–240VAC
• CP1E-N40DR-A: 40-point CPU, 24DI/16DO relay, 2AI/1AO, USB, 100–240VAC
• CP1E-N40SDR-A: 40-point CPU, 24DI/16DO relay, 2AI/1AO, RS-232C + USB, 100–240VAC — current SKU on this listing
• CP1E-N40DT-D: 40-point CPU, 24DI/16DO NPN transistor, 2AI/1AO, USB, 24VDC
• CP1E-N60DR-A: 60-point CPU, 36DI/24DO relay, 2AI/1AO, USB, 100–240VAC
• CP1E-N60DT-D: 60-point CPU, 36DI/24DO NPN transistor, 2AI/1AO, USB, 24VDC

NA-Type CPU Units (Advanced, with Ethernet)

• CP1E-NA20DR-A: 20-point CPU, relay output, built-in Ethernet/IP port, 2AI/1AO, 100–240VAC
• CP1E-NA20DT-D: 20-point CPU, NPN transistor output, built-in Ethernet/IP, 2AI/1AO, 24VDC

Expansion I/O Modules (Compatible with N/NA/S-Type)

• CP1W-8ED: 8-point digital input expansion module
• CP1W-8ER: 8-point relay output expansion module
• CP1W-AD041: 4-channel analog input expansion module, 0–10V / 4–20mA
• CP1W-DA021: 2-channel analog output expansion module, 0–10V / 4–20mA

Sourcing Hard-to-Find & Obsolete CP1E Parts

DriveKNMS maintains a dedicated inventory program for CP1E series units, including models that have been discontinued or placed on limited availability by OMRON's standard distribution channels. For facilities operating CP1E-based control panels with 10+ year installation histories, sourcing replacement CPUs and expansion modules through standard distributors is increasingly unreliable due to long lead times and minimum order quantity constraints. DriveKNMS sources CP1E units through verified secondary market channels, performs incoming inspection against OMRON factory specifications, and provides traceability documentation for each unit. Stock is maintained for both AC-supply (100–240VAC) and DC-supply (24VDC) variants across E, N, and NA sub-families. For end-of-life support planning, DriveKNMS can provide multi-unit buffer stock agreements to cover planned maintenance windows and unplanned failure events.

Quality Control for the CP1E Range

Each CP1E unit processed by DriveKNMS undergoes a structured inspection and functional verification protocol. Visual inspection covers housing integrity, terminal block condition, label legibility, and connector pin alignment. Firmware version is read via CX-Programmer USB connection and logged against the unit's production date code. Functional testing includes power-on self-test verification, I/O point actuation across all digital channels, analog input/output calibration check against factory tolerance (±0.3% full scale for voltage, ±0.5% for current), and RS-232C/USB communication port handshake verification. For units with built-in Ethernet (NA-type), network port connectivity and IP address assignment are confirmed. Units failing any test parameter are quarantined and not listed for sale. Test records are retained and available upon request for quality-critical procurement processes.

For CP1E series inquiries, parts requests, and bulk sourcing:

• Email: [email protected]
• WhatsApp: +86 18359293191
• Web: driveknms.com