The Omron CS1H-CPU66H, also cataloged as the CS1H-CPU66H CPU Unit, operates as a dedicated hardware component for high-speed central processing and ladder logic execution within SYSMAC CS1-series platforms.

Model Architecture & Suffix Breakdown

The CS1H-CPU66H belongs to the high-performance CS1H central processing unit line within the SYSMAC CS1 family. The CS1H prefix designates high-capacity industrial CPU architectures, the 66 suffix specifies a 120 Kstep program memory and 256 Kword data memory hardware profile, and the H ending denotes high-speed instruction processing capabilities designed for large-scale I/O control across expanded rack configurations.

Performance & Hardware Specifications

Backplane Synchronization & System Execution

The high-speed CPU engine maintains maximum backplane bus communication velocity across local and expansion racks. Optimized cycle processing enables high I/O density scaling while maintaining seamless hardware firmware flash compatibility across specialized motion, analog, and network communication units.

Shipping Package Content

• 1 x Omron CS1H-CPU66H Central Processing Unit

Installation & System Setup Rules

• Disconnect main rack power before inserting or removing the CPU unit from the CPU backplane slot.
• Ensure the unit is locked firmly into the CPU slot before applying power to prevent backplane pin damage.
• Connect RS-232C shield wiring to the panel ground terminal to suppress serial line noise interference.
• Securely seat the memory card slot cover and peripheral port protective cap when not in active programming use.

Technical FAQ

• What is the basic LD instruction execution time on the CS1H-CPU66H?

  The processor executes basic LD instructions in 0.02 us, allowing ultra-fast scan cycle performance.

• How many total expansion racks can be managed by the CS1H-CPU66H processor?

  The CPU unit supports up to 7 expansion racks, allowing control of up to 5,120 direct I/O points.

• Can the CS1H-CPU66H processor be hot-swapped during backplane operation?

  No, hot-swapping the CPU unit is strictly prohibited; all power must be isolated prior to removal.

• What communication interface ports are built directly onto the CPU front panel?

  The front panel features one dedicated peripheral port and one RS-232C serial communication port.

• What memory capacities are allocated for user programs and data storage?

  The unit features 120 Ksteps of program capacity alongside 256 Kwords of extended data memory.

• What current load does the CPU place on the internal 5 VDC backplane bus?

  The processor draws 0.82 A at 5 VDC from the backplane power supply module.

• What is the ambient operating temperature specification inside the cabinet?

  The module operates continuously within an ambient enclosure temperature range of 0 to 55 deg C.

• Is a battery required to retain user memory and real-time clock data?

  Yes, a built-in lithium battery maintains RAM data memory and system clock during power outages.