A2H124-24FX P0973BJ Foxboro Analog Input Module

Foxboro A2H124-24FX P0973BJ I/A Series Analog Input Modules

Foxboro A2H124-24FX P0973BJ I/A Series Analog Input Modules

Availability: 10 left in stock

Foxboro A2H124-24FX P0973BJ I/A Series Analog Input Module Configured for continuous electro-analytical signal conversion in I/A Series DCS networks, the...

SKU: A2H124-24FX P0973BJ

Manufacturer: Foxboro
Product No.: A2H124-24FX P0973BJ
Product Type: Analog Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 600g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Foxboro A2H124-24FX P0973BJ I/A Series Analog Input Module

Configured for continuous electro-analytical signal conversion in I/A Series DCS networks, the Foxboro A2H124-24FX P0973BJ (A2H124-24FX Analog Input Module) provides direct physical/electrical execution. The module processes analog field signals across 24 isolated input channels, digitizing raw 4-20 mA DC currents via high-precision A/D converters. By converting field signals into standardized digital values at 2 samples per second per channel, the hardware eliminates ground loops and mitigates high-impedance voltage drops before transmitting process data over the system backplane.

Hardware Specifications

Parameter	Specification
Model	A2H124-24FX P0973BJ
Brand	Foxboro
Origin	USA
Weight	0.6 kg
Dimensions	10.2 cm x 10.2 cm x 15.2 cm
Operating Temp	-20 to +70 deg C
Power Consumption	Redundant DC inputs via baseplate
Input Channels	24 Isolated Analog Inputs
Input Signal Type	4-20 mA DC (Two-Wire Transmitters)
Conversion Resolution	12 to 16-bit A/D
Measurement Accuracy	+/- 0.1% of span
Channel-to-Logic Isolation	1500 VDC
Enclosure Rating	IP20

Process Control & Channel Isolation Profiles

The module maintains signal integrity within dense DCS architectures using dedicated channel-to-channel and 1500 VDC channel-to-logic galvanic isolation. This isolation barrier prevents common-mode noise propagation, voltage spikes, and ground loop interference across the 24 input channels. Internal firmware monitors input loop health continuously while supporting standard 4-20 mA HART loop protocol communications. System processors read incoming field transmitter telemetry directly, while diagnostic algorithms verify channel accuracy and flag out-of-spec conditions to maintain process reliability.

Frequently Asked Questions

Q: Does the module support hot-swapping during active system operation?

A: Yes. Technicians can replace the module without shutting down the system backplate or interrupting power to adjacent I/O modules on the baseplate assembly.

Q: What termination assembly is required to connect the field wiring to this module?

A: Field wiring requires connection through the compatible P0973BJ termination assembly to route the 24 isolated 4-20 mA DC signals correctly to the module interface terminals.

Q: How does the module indicate channel diagnostic status or hardware faults?

A: The front panel features LED status indicators tied to internal firmware diagnostics, providing immediate local visualization of power input status, system communication faults, and individual channel health.

Field Installation Guidelines

Mount the baseplate on a standard DIN rail or enclosure rack frame, verifying rigid structural alignment prior to module insertion. Insert the module firmly into its baseplate slot until the mechanical locking mechanism engages completely. Ensure field cables connect to the dedicated P0973BJ termination assembly, maintaining proper wire routing separation between low-level signal pairs and AC power conductors to limit electromagnetic crosstalk.

Ground the baseplate backplane chassis to plant earth through a heavy-gauge copper conductor. Connect signal cable shields at a single grounding point, typically at the DCS cabinet terminal strip, to block ground currents from entering the 1500 VDC isolated input channels. After completing wire terminations, inspect the enclosure for proper IP20 compliance and verify that operating ambient temperatures inside the cabinet remain between -20 and +70 deg C.

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