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Omron CS1H-CPU66H — PLCs (Programmable Logic Controllers)

Omron CS1H-CPU66H PLC CPU, 256K Words Backplane

MPNCS1H-CPU66H
End of Life

Omron CS1H-CPU66H, PLC CPU, 256K program memory, backplane mount, RS-232C, USB.

$2,835.00 – $7,082.18Ref. price · indicative, final on quote
Omron CS1H-CPU66H datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CS1H-CPU66H — Identification
ParameterValue
SeriesCS1H
CS1H-CPU66H — I/O
ParameterValue
Expandable80 Modules (7 Racks) Max
CS1H-CPU66H — Mechanical
ParameterValue
Mounting typeBackplane
CS1H-CPU66H — Approvals
ParameterValue
Approvals / certificationsCE, cULus, Lloyd, NK
CS1H-CPU66H — Other specifications
ParameterValue
SoftwareCX-One
Memory size256K Words
CommunicationsRS-232C, USB

Product details

Integrator note

The Omron CS1H-CPU66H is a rack-mount PLC CPU from the CS1H series, providing 256K words of program memory and expandability to 80 modules across 7 racks via the backplane. Built-in RS-232C and USB ports handle programming and basic HMI links without an extra comms module. Software is CX-One.

Approvals include CE, cULus, Lloyd, and NK, covering industrial control and marine applications. Documentation for compliance audits is available upon request via RFQ.

Mounting & expansion

Mounts on a backplane; CPU occupies one slot. Expansion reaches 80 modules across 7 racks via backplane interfaces. The RS-232C port is typically used for programming or Modbus communication; the USB port provides a direct connection to CX-One software. Both ports are active simultaneously; no port-switching DIPs.

Frequently asked questions

What approvals does the CS1H-CPU66H carry?

It is approved under CE, cULus, Lloyd, and NK. These cover general industrial use and marine/classification society requirements.

Can the CS1H-CPU66H replace a CP1L-L10DT-A in an existing panel?

No. The CS1H is a backplane-mount modular PLC, while the CP1L is a compact chassis/DIN-mount unit. They have different mounting, expansion, and wiring interfaces. A full panel redesign would be required.

What is the package type for this CPU?

The CPU is shipped in bulk packaging – individual box without retail carton.

MPN
CS1H-CPU66H