The Omron CP1L-M40DR-A, also cataloged as the CP1L-M40DR-A Programmable Controller, operates as a dedicated hardware component for discrete logical processing and field device switching within CP1L network architectures.

Technical Identifier Matrix

• Base Model: CP1L

• CPU Class: M (40 I/O Points)

• Input Points: 24 DC Inputs

• Output Points: 16 Relay Outputs

• Power Supply Voltage: 100 to 240 VAC

• Output Configuration: Electromechanical Relay

Hardware Specifications

Omron PLC Backplane Bus Velocity & Expansion Determinism

The CP1L-M40DR-A host processor executes cyclic scanning with immediate I/O refreshing, delivering high-speed execution through direct bus interconnects. The local system bus handles high-density I/O expansion up to 3 add-on modules without degrading the 0.55 us basic instruction cycle time. Built-in high-speed counter inputs (4 axes at 100 kHz) and quick-response inputs (50 us min. pulse width) process directly through hardware interrupts, bypassing standard scan delays to maintain deterministic execution across complex automated tasks.

Package Contents & Ordering Information

• 1x Omron CP1L-M40DR-A Programmable Controller

• 1x Terminal block protective cover assembly

• 1x Hardware installation instruction manual

Field Installation Guidelines

• DIN Rail Mounting: Secure the controller on a 35 mm DIN rail (TH35-7.5 or TH35-15) using the rear locking mechanism. Maintain at least 50 mm clearance above and below the housing for convection cooling.

• AC Supply Wiring: Connect 100 to 240 VAC power to terminals L1 and L2/N. Use AWG 14 to AWG 18 wire sizes and torque terminal screws to 0.5 N m.

• Shielding & Grounding: Connect the functional ground (FG) terminal directly to a dedicated earth electrode with under 100 Ohm resistance. Run field I/O lines in separate conduits from AC power wiring by at least 100 mm.

• Expansion Connection: Remove the expansion bus connector cover on the right side of the unit before locking CP-series expansion modules onto the side bus.

Frequently Asked Questions

• What is the maximum backplane expansion limit for the CP1L-M40DR-A CPU unit?

  The unit supports a maximum of 3 CP-series expansion units or expansion I/O units, bringing the maximum total system capacity to 160 I/O points.

• Can the electromechanical relay outputs be hot-swapped during operation?

  No. The CP1L-M40DR-A uses an integrated, non-modular terminal block design; all AC main power and field supply power must be isolated prior to maintenance.

• What signal input pulse width is required for the quick-response input terminals?

  Quick-response inputs register digital pulses with a minimum input pulse width as short as 50 us max., bypassing standard scan cycle input filtering.

• What programming languages are supported for function block execution?

  Function block definitions support both standard Ladder Diagrams and Structured Text (ST) languages, allowing up to 128 definitions and 256 instances.

• What cable parameter is required for the functional grounding terminal?

  Use a copper conductor with a minimum cross-sectional area of 2.0 mm2 connected directly to a ground electrode without creating ground loops with power circuits.

• Does the CP1L-M40DR-A provide built-in high-speed pulse outputs?

  No. Models with relay outputs (CP1L-M40DR-A) do not feature pulse output functions; transistor output models are required for 100 kHz pulse outputs.

• How many total task assignments can be configured in the CPU memory?

  The execution engine supports up to 288 total tasks, configured specifically as 32 cyclic tasks and 256 interrupt tasks.

• What is the thermal derating requirement at the maximum operating limit of 55 deg C?

  At 55 deg C, ensure total simultaneous ON ratio across all input and output channels does not exceed 80 percent of total hardware density to avoid internal thermal accumulation.