RH914TD is the part number associated with the Foxboro FBM207, a discrete-input interface designed for voltage monitoring within the Foxboro DCS environment. It provides 16 isolated input channels and converts field electrical states for communication through the FBM Fieldbus.
CHANNELS
16
MODULE TYPE
FBM207
FIELD INPUT
VOLTAGE MONITOR
ENGINEERING SNAPSHOT
Input architecture
16 isolated channels
FBM Fieldbus
2 Mbps redundant
Module supply
24 VDC
Module consumption
3 W typical
ISOLATION
Each input is galvanically isolated from the other channels and from ground.
DESIGNED FOR FIELD SIGNAL INTERFACE
Stable discrete signal acquisition
The FBM207 accepts two-wire field inputs and performs the signal conversion required to interface electrical input signals with the Foxboro DCS Fieldbus.
The module can operate as a single unit or as part of a redundant FBM arrangement.
VOLTAGE MONITORING
The FBM207 supports voltage-monitoring inputs from 15 to 60 VDC. Appropriate termination assemblies also support 120 VAC / 125 VDC and 240 VAC input arrangements.
High-voltage termination assemblies provide the required signal conditioning and optical isolation.
EVENT PROCESSING
The module supports Discrete Input, Ladder Logic, Pulse Count and Sequence of Events functions, with configurable input filtering.
Filter/debounce choices include no filtering, 4, 8, 16 and 32 ms.
FIELD COMMUNICATION
Redundant 2 Mbps module Fieldbus
POWER
24 VDC +5% / -10%
ENVIRONMENT
-20°C to +70°C
APPLICATION
Discrete Field Monitoring
SUITABLE SIGNALS
DC voltage states, switches and discrete field devices
MAINTENANCE
Module replacement without removing field termination cabling
Can RH914TD be used with both low-voltage and higher-voltage field inputs?
Yes, but the termination assembly must match the field signal. FBM207 voltage-monitoring supports 15–60 VDC directly, while suitable termination assemblies provide arrangements for 120 VAC/125 VDC and 240 VAC.
What should be checked before replacing RH914TD in an existing FBM207 installation?
Verify the existing FBM type, termination assembly, field-voltage arrangement, baseplate position and whether the installation is single or redundant. The termination assembly is a key part of the input configuration.
Does RH914TD support redundant operation when process availability is important?
Yes. The FBM207 can be installed as a redundant pair. Redundant modules use adjacent baseplate positions and a redundant adapter, allowing the two modules to share the associated termination arrangement.
Is RH914TD suitable when individual input isolation is required?
The FBM207 provides galvanic isolation between each input channel and the other channels and ground. This architecture is useful where independent discrete field signals must be kept electrically separated.
Can RH914TD be considered for sequence-of-events applications?
The FBM207 supports Sequence of Events functions. With the applicable Foxboro DCS software and time-synchronization configuration, digital input events can be acquired and processed for SOE applications.
What practical details should be included when requesting an RH914TD quotation?
Please provide Part Number, Quantity, Destination, Required Date and Machine/System. If available, also include the existing termination assembly and field-voltage arrangement so the configuration can be checked before quotation.
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WARRANTY
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PAYMENT
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AFTER-SALES ARRANGEMENT
Please contact us within 7 days if you have any question after receiving the items. Returned items should remain in their original condition and be accompanied by the specific reason for return. After the returned goods are received, we will arrange a return or replacement for the order as applicable. The buyer is responsible for shipping costs incurred in the return process.
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For quotation, please provide Part Number · Quantity · Destination · Required Date · Machine/System.