Honeywell 10002/1/2 Central Processor Unit 

The Honeywell 10002/1/2, also cataloged as the 10002/1/2 Central Processor Unit, operates as a dedicated hardware component for application execution, memory management, and system supervision within Honeywell FSC control platforms. The CPU processes control logic, manages field I/O communications, and stores application programs through RAM and EPROM memory resources.

Hardware Specifications

Memory Architecture and System Processing

The CPU incorporates separate memory regions for operating system functions and user applications. Standard memory resources include 128 KB System RAM, 128 KB Application RAM, and 256 KB System EPROM. Application memory can be expanded up to 1 MB, allowing increased program storage capacity for control system configurations. Battery-backed memory support permits retention of application data during power interruptions.

Frequently Asked Questions

Q: What is the standard application memory capacity?
A: The CPU includes 128 KB of Application RAM with expansion capability up to 1 MB.

Q: Does the processor support memory backup?
A: Yes. The module supports battery-backed memory and compatible DBM memory modules.

Q: What operating voltage is required by the CPU?
A: The processor operates from a 5 VDC supply with a rated current of 1 A.

Field Installation Guidelines

• Install the CPU only in the designated FSC rack location.

• Verify compatibility between the installed CPU firmware and system software version.

• Ensure proper seating of the module within the backplane connector.

• Check battery condition before commissioning memory-backed applications.

• Maintain separation between processor modules and high-noise power components.

• Confirm rack space allocation requirements before installation.

• Verify key switch position before startup, maintenance, or reset operations.