Configured for centralized logic program execution in Omron C200H and C200Alpha PLC architectures, the Omron C200HE-CPU42-E (C200HE-CPU42-E CPU Processor Module) provides direct physical and electrical execution of user instructions across local backplanes.

Technical Identifier Matrix

Hardware Specifications

Backplane Bus Velocity and I/O Density Scaling

The Omron C200HE-CPU42-E integrates directly with the C200Alpha parallel backplane, routing high-speed memory transactions across expansion racks to maintain a maximum capacity of 880 local I/O points. Backplane bus throughput supports reduced cycle overhead, executing standard logic instructions between 0.1 and 0.375 microseconds. Deterministic timing execution remains stable across multi-rack local expansion configurations, maintaining consistent task prioritization and high-density I/O scan refreshes without firmware buffer overflows.

Package Contents & Ordering Information

• 1x Omron C200HE-CPU42-E CPU Processing Module
• 1x C200H-BAT09 Internal 3 VDC Lithium Battery
• 1x RS-232C Port Protective Cover

Field Installation Guidelines

• Mounting: Seat the module into the dedicated CPU slot on a C200Alpha backplane. Secure the upper and lower locking tab mechanisms to prevent mechanical disengagement under vibration.
• Wiring & Grounding: Terminate the functional earth (FE) terminal on the rack power supply using a dedicated grounding cable with a conductor cross-section of at least 2.0 mm sq, maintaining a total ground resistance below 100 ohms.
• Shielding: Connect all serial communication cable shields (RS-232C) using a 360-deg braid grounding clamp attached to the metallic enclosure entry point.
• Servicing: Always isolate the main AC/DC power supply to the backplane base unit prior to mounting or dismounting the CPU module to prevent damage to backplane CMOS components.

Frequently Asked Questions

• What is the maximum local I/O addressing capacity of the C200HE-CPU42-E?

  The CPU unit supports up to 880 local I/O points when configured across extended C200Alpha system backplane racks.

• Is an integrated serial port standard on the C200HE-CPU42-E module?

  Yes, the unit features an integrated 9-pin RS-232C serial communication port supporting Host Link and NT Link protocols.

• What is the basic instruction execution cycle speed of this processor?

  Basic Boolean logic instructions execute within a deterministic window of 0.1 to 0.375 microseconds.

• Can the C200HE-CPU42-E be removed while the system backplane is energized?

  No, live insertion or extraction is strictly prohibited to prevent backplane bus hardware damage.

• How is program memory preserved when main system power is disconnected?

  Data and program memory are retained in non-volatile memory maintained by an internal C200H-BAT09 3 VDC lithium battery.

• What is the user program memory capacity on the C200HE-CPU42-E?

  The controller contains internal program memory capacity sized for up to 7.2k words of ladder logic.

• What grounding specification is required for installation in control panels?

  A dedicated ground conductor of at least 2.0 mm sq must be connected to the functional earth ground, achieving less than 100 ohms resistance.

• Which backplane family supports physical installation of the C200HE-CPU42-E?

  The CPU mounts directly into standard Omron C200HX / C200HG / C200HE (C200Alpha) series system backplanes.