The Foxboro P0973CN, also cataloged as the P0973CN Fieldbus Communications Base Module, operates as a dedicated hardware component for high-speed backplane interconnect and physical module mounting within I/A Series and Foxboro Evo DCS platforms.
| Parameter | Specification |
|---|---|
| Model | P0973CN |
| Brand | Foxboro by Schneider Electric |
| Origin | USA |
| Weight | 0.91 kg (2.00 lbs) |
| Dimensions | 241 mm x 52 mm x 163 mm |
| Operating Temp | -20 deg C to +70 deg C |
| Power Consumption | Passive backplane backplane-driven bus |
| Module Type | Fieldbus Communications Base Module (Backplane) |
| Slot Configuration | 4+2 Slots (Supports FCP270 / FEM100) |
| Communication Support | HDLC Fieldbus / 100 Mbps Ethernet |
| Network Interface | Fiber Optic / Copper (Configuration Dependent) |
| Mounting | Standard I/A Series Chassis / Rack Mount |
| Power Distribution | Integrated redundant power bus support |
| Compliance | IEC Industrial Automation Standards |
The base module distributes high-speed HDLC fieldbus and Ethernet communication pathways directly across its internal printed circuit traces. Dual-rail power distribution traces route 24 VDC redundant power to seated controllers and I/O modules, preserving 4-20 mA HART loop protocol transmission stability across field channels. Designed with channel-to-channel isolation safeguards and heavy-duty gas-tight backplane connectors, the baseplate prevents signal degradation and supports cold junction compensation (CJC) processing on attached temperature input cards.
Q: Can the P0973CN base module host a fault-tolerant redundant FCP270 controller pair? A: Yes, the 4+2 slot architecture includes dedicated dual processor slots designed specifically to host a synchronized primary and standby FCP270 controller configuration.
Q: Is the P0973CN baseplate compatible with newer generation FCP280 control processors? A: The P0973CN is engineered specifically for FCP270 and FEM100 modules; replacing or upgrading to FCP280 processors requires checking backplane physical keying and bus compatibility.
Q: How does the baseplate manage power distribution if one power supply unit fails? A: The internal printed circuit board features dual independent 24 VDC bus rails that automatically maintain continuous power feed to all installed modules if a single supply rail drops.
Mount the P0973CN baseplate assembly securely onto the cabinet mounting rack using standard chassis screws, ensuring a solid metal-to-metal contact path to the cabinet enclosure. Attach a dedicated heavy-gauge copper grounding cable from the baseplate grounding stud directly to the main cabinet earth ground bar. When seating FCP270 controllers and Fieldbus Modules, press firmly until the locking mechanisms click into place to ensure gas-tight backplane pin mating. Route field communication and power cables through isolated cable trays to prevent ambient high-voltage electromagnetic interference from coupling into high-speed HDLC buses.
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