The Omron CQM1H-CPU11, also cataloged as the CQM1H-CPU11 CPU Processor, operates as a dedicated hardware component for central logic execution and localized signal processing within SYSMAC CQM1H Series platforms. It processes input signals via 16 built-in DC input channels and coordinates backplane traffic across connected expansion modules. The unit executes cyclic control programs without requiring secondary coprocessor boards.

Part Number Nomenclature & Variant Identification

• CQM1H: Designates the modular industrial programmable logic controller hardware architecture.
• CPU: Identifies the central processing unit hardware package housing the system memory and logic engine.
• 11: Specifies base model architecture featuring 3.2 Kwords program memory, 16 built-in DC inputs, and no Inner Board support.

Physical & Performance Specifications

Deterministic Network Routing & Memory Allocation

The unit leverages internal backplane bus communication velocity Licences protocols to manage cyclical scan updates and preserve signal synchronization across expansion I/O blocks. High-efficiency I/O density scaling allows up to 256 total points to be addressed directly, maintaining strict timing continuity and firmware flash compatibility across all connected modules.

Standard Package Inclusions

• 1 x Omron CQM1H-CPU11 CPU Processor Unit
• 1 x Terminal Cover Assembly
• 1 x Operator Datasheet Manual

Field Wiring & Mounting Procedures

DIN Rail & Rack Installation

• Mount the CPU module directly onto a standard 35 mm DIN rail or flat panel surface using M4 mounting hardware.
• Ensure adjacent expansion units are securely locked using the top and bottom slider catches before applying system power.
• Maintain a minimum clearance of 50 mm above and below the CPU module to allow adequate thermal convection cooling.

Input Wiring & Noise Suppression

• Wire the 16 built-in 24 VDC inputs using 22 AWG to 16 AWG stranded copper conductors.
• Group signal wires separately from AC power conductors and high-voltage motor lead lines to prevent cross-talk.
• Connect the system protective ground terminal (100 ohms or less) to a dedicated earthing bus bar.

Frequently Asked Questions

• Does the CQM1H-CPU11 unit support optional Inner Boards for specialized I/O?

  No. The CPU11 variant is the entry-level CPU within the CQM1H series and does not contain slot hardware for Inner Boards.

• Can a Controller Link module be mounted to this specific CPU processor?

  No. Controller Link Units are not supported on the CQM1H-CPU11 model; a CPU21 or CPU51 unit is required for that function.

• How are programming units or PCs connected to this central controller?

  Programming interfaces connect directly through the built-in peripheral port using a dedicated CQM1H programming cable.

• Is the program memory retained during system power outages?

  Yes. Program and Data Memory (DM) parameters are held in non-volatile memory backed up by an internal lithium battery.

• Can I/O modules be hot-swapped while the CPU backplane is energized?

  No. Disconnecting or inserting I/O modules during operation risks severe backplane damage and CPU execution failure.

• How many built-in digital input channels are physically available on the front panel?

  The processor unit includes 16 built-in DC inputs directly accessible through the front terminal block connectors.

• What is the total maximum I/O point capacity supported by this base unit?

  The unit manages a maximum configuration of 256 I/O points including local built-in inputs and expansion rack units.

• What type of power is drawn from the internal backplane bus during operation?

  The unit draws a maximum of 820 mA at 5 VDC directly from the connected CQM1H power supply unit backplane.