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Check the offered item before ordering
Please request current front, rear and identification-label photos of Foxboro P0931RM. Have your maintenance team compare the complete marking, type 1 p/pvc termination cable connections and installed configuration with the manufacturer documents before ordering.
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Dispatch Confirmation
Quantity and dispatch date are confirmed in the quotation.
Technical specifications for P0931RM
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Manufacturer:Invensys
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Product Category:DCS Systems
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Spare Part Number:P0931RM
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Weight:0.36 kg
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Tariff Code:8537101190
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Cable family:Type 1 P/PVC termination cable
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Catalog length:2.0 m
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Outer jacket:Polyurethane
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Conductor insulation:Semi-rigid PVC
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Cable temperature range:-20 to +80 °C in the cited Type 1 table
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TA-side connector:25-pin male D-subminiature
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Baseplate-side connector:37-pin male D-subminiature
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Documented host arrangement:FBM222 active termination assembly
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Active TA options:P0926TH or P0926TJ in the cited design
Information
- P0931RM cable selection depends on the active termination assembly and its two connector interfaces.
Engineering boundary: Cable type follows the installed I/O drawing
Acceptance focus: Test every point carried through the new connection
The manufacturer lists a 2.0 m length for this order code. The Type 1 construction includes a polyurethane outer jacket and semi-rigid PVC insulation; cable selection must retain the specified termination arrangement and connector mapping. For that active TA arrangement the cable is excluded from the PROFIBUS network-length calculation; a passive TA arrangement is treated differently.
Before replacement, identify both mating devices and the existing routing path. A cable with a similar shape or length is not necessarily the same termination-cable type. The 2.0 m order code and connector assignment should be checked against the cabinet drawing before a similar-looking Type 1 cable is installed.
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Foxboro P0931RM technical reference
Foxboro PSS 21H-2Z22 B4 excerpt: exact Type 1 P/PVC code, 2.0 m length, connectors and TA arrangement. PDF, 4 pages. -
Foxboro P0931RM installation guide
Apter Power guide: check 25-pin and 37-pin ends, the TA type and the cabinet route before network testing. PDF, 3 pages.
Application scope: Check both D-sub connector ends and the 2.0 m route; active and passive TA designs treat cable length differently in the network budget.
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FBM-to-TA connection
Link a documented 200-series FBM to its compatible termination assembly. The cited FBM222 active TA arrangement uses distinct 25-pin and 37-pin cable ends. -
Cable replacement
Restore the same type and route when the installed interconnect is damaged. The 2.0 m code must fit the existing cabinet route without unsupported extension. -
Cabinet service
Maintain connector identification and strain relief within the I/O enclosure. The removable cable links baseplate and TA; it is not the PROFIBUS field segment. -
Fault isolation
Test continuity and seating when a field signal is lost between module and termination assembly. In the documented active TA scheme this interconnect is excluded from network length; verify the installed TA type.
Confirm Type 1 P/PVC on the installed cable schedule. Do not substitute a similarly sized Type 4 or LSZH variant without approval.
Record connector and assembly markings before removal. The TA side and baseplate side have different D-sub pin counts.
Avoid pinch points, sharp bends and unsuitable cable separation. Respect the cabinet bend path and support the cable at its terminations.
Ensure connectors are secured without loading contacts. A strained connector can create intermittent PROFIBUS diagnostics.
Control process consequences before cable disconnection. Coordinate service with the FBM222 and field network operating state.
Test each channel served by the replacement cable. Recheck the host and field-device communication after reconnection.
Alternative Names
Technical notes
Installation relationship: The manufacturer lists a 2.0 m length for this order code. The Type 1 construction includes a polyurethane outer jacket and semi-rigid PVC insulation; cable selection must retain the specified termination arrangement and connector mapping.
Service check: Test each channel served by the replacement cable.
Technical reference: Foxboro PSS 21H-2Z22 B4. Product and purchasing information are separate.
FAQ View All FAQ
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What makes P0931RM different from P0931RQ?P0931RM is documented as Type 1 P/PVC, while P0931RQ is Type 4 26 AWG P/PVC. Preserve the specified cable type for the installed FBM and termination assembly.
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Does the 2.0 m catalog length of P0931RM permit arbitrary cabinet routing?No. Maintain connector support, bend protection and the approved enclosure routing path.
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How is a possible open conductor in P0931RM diagnosed?Isolate the affected I/O, compare continuity and connector seating with the approved wiring schedule, then test the field point.
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Can P0931RM substitute for any 200-series FBM cable?No. The cable type and mating FBM/termination assembly must match the documented system arrangement.
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What should be recorded before removing P0931RM?Record both endpoint part numbers, connector orientation, route and affected channel list.
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Why does P0931RM need a controlled return to service?One cable can carry several I/O channels; verify every affected point and alarm after reconnection.
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Does RH931RM automatically fit in place of P0931RM?Later Foxboro material lists it as a successor reference, but the installed mating hardware and cable route still require review.
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What damage should be checked on P0931RM?Inspect jacket cuts, crushing, connector latch wear, pin damage and strain-relief condition.
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