Honeywell 8C-PAIHA1 51454470-275 Series 8 Analog Input with HART - Single Ended Module

Product Description

Configured for 4-20 mA current signal acquisition and HART communication in Honeywell Series 8 I/O systems, the Honeywell 8C-PAIHA1 51454470-275 (8C-PAIHA1 Analog Input with HART - Single Ended Module) provides direct electrical input processing. The module supports 16 current input channels with 16-bit A/D conversion and allows conventional analog transmitters and HART-enabled field devices to connect through single-ended input circuits.

Hardware Specifications

4-20 mA HART Loop Protocol and Process Data Handling

The Honeywell 8C-PAIHA1 51454470-275 processes conventional 4-20 mA transmitter signals and HART-enabled current loop signals through its 16 input channels. Each channel converts the incoming analog signal using a 16-bit A/D converter for controller processing.

In addition, the module receives HART digital information superimposed on the analog current signal. This communication can provide device status and configuration information without replacing the primary 4-20 mA process signal.

HART secondary and tertiary variables can also provide additional process values for the control strategy. Therefore, the module supports simultaneous analog signal acquisition and digital field device communication within the Honeywell Series 8 I/O architecture.

The conformal coating associated with the 8C module designation protects the electronic circuitry from environmental contaminants, including moisture, dust, and chemical exposure. However, the installation environment must still comply with the applicable system enclosure and operating requirements.

Frequently Asked Questions

Q: What type of field signals does the Honeywell 8C-PAIHA1 51454470-275 accept?
A: The module accepts current input signals, primarily 4-20 mA signals from conventional transmitters and HART-enabled field devices. The specified input range operates through 250 ohm.

Q: How many analog input channels are available on the 8C-PAIHA1 51454470-275?
A: The module provides 16 current input channels and uses 16-bit A/D conversion for analog signal processing.

Q: Can the module process HART data and the analog process signal at the same time?
A: Yes. The module processes the 4-20 mA analog signal while supporting HART communication data, including device status, configuration data, and available secondary or tertiary process variables.

Field Installation Guidelines

Install the Honeywell 8C-PAIHA1 51454470-275 only in the compatible Honeywell Series 8 I/O hardware position specified by the system documentation.

Verify that the external supply and module voltage requirements match the specified 24 VDC system configuration before energizing the I/O assembly.

Route analog input wiring separately from high-voltage power conductors, switching circuits, and variable-frequency drive cables. This practice reduces externally induced electrical noise on low-level current signals.

Use shielded instrumentation cable where the installation design requires electromagnetic interference control. Apply shield grounding according to the site grounding scheme and avoid creating unintended ground loops.

Check transmitter polarity and loop continuity before connecting each 4-20 mA channel. In addition, verify the input circuit and field device configuration before commissioning HART communication.

Do not remove or alter the conformal coating on the module circuitry. Handle the module using standard electrostatic discharge precautions during installation and replacement.

Other Attributes

• Series:  I/O Series
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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