Omron CP1E-N40SDR-A

Technical Dossier

Product Details And Specifications

OMRON CP1E Series Technical Notes

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