Configured for programmable sequence control in the SYSMAC CQM1H PLC system, the Omron CQM1H-CPU61 (CQM1H-CPU61 CPU Unit) provides 512-point I/O capacity, 15.2 Kword program memory, 12 Kwords of combined DM/EM data memory, 16 built-in DC inputs, and integrated peripheral and RS-232C ports. The CPU supports Inner Boards and Controller Link expansion.

Technical Identifier Matrix

OMRON documentation identifies CQM1H-CPU61 as one of the CQM1H CPU models supported by CX-Programmer and lists the model under EN 61131-2 self-declaration.

Hardware Specifications

The CPU dimensions are specified as 120 mm x 110 mm x 107 mm (W x H x D), while the CQM1H-CPU51/61 system configuration can extend to 603 mm in overall width depending on installed units. The CPU weight is specified as 500 g max., and internal consumption is 840 mA at 5 VDC.

PLC CPU and Expansion Architecture

The CQM1H-CPU61 is the higher-capacity CQM1H CPU configuration with support for up to 512 I/O points and 15.2 Kwords of program memory. The CPU block supports Inner Boards, while a Controller Link Unit can be installed for Controller Link network integration. CQM1H-CPU51/61 configurations permit up to 12 I/O and dedicated I/O Units, or 11 when a Communications Unit is included.

The CPU also provides two built-in programming/serial interfaces: a peripheral port and an RS-232C port. OMRON documentation confirms the CQM1H-CPU61 as an applicable CPU for CQM1H serial communication configurations.

Package Contents & Ordering Information

• 1x Omron CQM1H-CPU61 CPU Unit
• 1x RS-232C connector assembly where supplied with the CPU configuration
• 1x CQM1H-BAT01 battery set where supplied as part of the standard CPU configuration
• Inner Boards and Controller Link Units are separate system components unless specifically ordered as part of a configured assembly

The documented standard CPU accessories include an RS-232C connector assembly and CQM1H-BAT01 battery set for applicable CPU models.

Field Installation Guidelines

• Mount the CPU as part of the CQM1H PLC assembly with the specified power supply, I/O, dedicated I/O, communications, and end-cover components.
• Maintain the specified ambient operating range of 0 to 55 deg C and humidity of 10% to 90% RH without condensation.
• Provide a protective enclosure suitable for the industrial installation environment; the documented operating environment requires the absence of corrosive gas.
• Connect the PLC grounding system with a ground resistance below 100 ohm.
• Keep signal and communication wiring separated from high-voltage and high-current conductors to reduce electrical interference.
• Use the RS-232C interface with the appropriate OMRON connector and cable arrangement for the selected host or peripheral device.
• When installing an Inner Board, verify the applicable slot position and CPU compatibility before energizing the system.
• For Controller Link installation, verify the applicable CQM1H communications hardware and network configuration before commissioning.
• Observe the CPU block current limit. CQM1H documentation specifies 3.0 A maximum for the CPU Block and 5.0 A maximum total under the stated expansion configuration limits.

Frequently Asked Questions

• Q: What is the maximum I/O capacity of the CQM1H-CPU61?

  A: The CQM1H-CPU61 supports a maximum I/O capacity of 512 points. The actual configuration depends on installed I/O, dedicated I/O, communications, and expansion hardware.

• Q: How much program memory is available?

  A: The CPU provides 15.2 Kwords of program capacity. This distinguishes the CPU61 from lower-capacity CQM1H CPU configurations such as the CPU51.

• Q: What are the DM and EM memory capacities?

  A: The CPU61 provides 6 Kwords of DM and 6 Kwords of EM memory, giving a combined data-memory capacity of 12 Kwords.

• Q: What serial interfaces are built into the CPU?

  A: The CPU has a peripheral port and an RS-232C port. The RS-232C interface can be used for applicable programming, host-link, or serial-device communication configurations.

• Q: Does the CQM1H-CPU61 support Inner Boards?

  A: Yes. The CPU61 supports CQM1H Inner Boards. Available board types include pulse I/O, absolute encoder, high-speed counter, analog, and serial communications functions.

• Q: What is the CPU's internal current consumption?

  A: The documented internal current consumption for the CQM1H-CPU61 is 840 mA at 5 VDC. The combined 5 VDC and 24 VDC system power must remain below 30 W.

• Q: What are the physical dimensions of the CPU unit?

  A: The CPU Unit dimensions are 120 mm x 110 mm x 107 mm, equivalent to 12.0 cm x 11.0 cm x 10.7 cm, specified as width x height x depth.

• Q: What operating temperature and humidity ranges apply?

  A: The documented operating temperature is 0 to 55 deg C. Ambient humidity is specified as 10% to 90% RH without condensation, with no corrosive gas in the operating environment.