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900C30-0460 | Honeywell | CPU ControlEdge 900
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- Part Number: 900C30-0460
- Brand: Honeywell
- Type: CPU Processor Modules
- Dimensions: 3.7×14×13.6cm
- Country of Origin: USA
- Barcode: 8537101190
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Additional Specifications
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Product Description
Honeywell 900C30-0460 CPU, ControlEdge 900
Configured for PLC logic execution and multi‑protocol controller processing in HC900 platforms, the Honeywell 900C30-0460 (900C30-0460 CPU module) provides direct physical and electrical task handling for rack‑mounted automation nodes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 900C30-0460 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.35 kg (shipping weight 2 kg) |
| Dimensions | 137 mm H x 38.1 mm W (5.4 in H x 1.5 in W) |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 1100 mA at 5 VDC |
| Memory | 64 MB RAM, 400 function blocks |
| Analog Inputs | 192 channels |
| Analog Outputs | 40 channels (48 with heat de‑rating / 192 with external power) |
| Digital Inputs | 384 channels (1920 UOI) |
| Digital Outputs | 384 channels (1920 UOI) |
| Communication | Modbus TCP, Modbus RTU, Ethernet/IP, PROFIBUS, RS‑485 |
| Mounting | Backplane / rack |
| Connector | 1 x RJ45, removable terminal |
| Compliance | CE, ATEX II 3 G Ex nA IIC T4 Gc, EN61010‑1, UL 61010‑1, CSA C22.2 No. 1010‑1, FM/CSA Class I Div. 2 Groups A/B/C/D |
| Compatibility | HC900 Series |
4-20 mA HART Loop Protocol & Channel Isolation Behavior
The CPU maintains stable analog loop processing when paired with HC900 I/O modules. HART digital overlays are decoded without disturbing the primary 4-20 mA span, ensuring uninterrupted loop continuity. Channel-to-channel isolation prevents drift propagation across high-density analog banks, maintaining independent reference stability for each measurement path.
Frequently Asked Questions
Q: Can the 900C30-0460 be removed while the rack remains energized? A: No. The CPU requires full rack power-down before extraction. Backplane signaling does not support hot-swap for this module type.
Q: How does the CPU’s current draw affect overall rack loading? A: The module consumes 1100 mA at 5 VDC from the system supply. Total rack current must remain within the HC900 power supply limits.
Q: Is firmware loading dependent on I/O population? A: Firmware updates are performed through the communication port and do not depend on slot occupancy, provided the backplane is fully initialized.
Field Installation Guidelines
Maintain proper shield termination for all analog and digital conductors entering the rack to minimize noise coupling. RS‑485 and PROFIBUS cabling should use twisted‑pair conductors with single‑point grounding to avoid loop formation. Ensure the CPU is fully latched into the backplane connector before energizing the system. Avoid parallel routing of high‑voltage and low‑level signal wiring; use segregated trays where possible. Provide adequate airflow around the rack to prevent thermal accumulation near the module’s upper operating limit.
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