DC-PDIL51 | Honeywell 51454818-175 Series C 24V Digital Input Module

Overview

The Honeywell DC-PDIL51 (Part No. 51454818-175) is a 24VDC Digital Input Module from the Honeywell Series C I/O platform. Designed for use in Experion Process Knowledge Systems (PKS), it enables precise monitoring of field input signals in distributed control systems (DCS). The module offers high signal integrity, compact form factor, and easy integration with control processors in demanding industrial environments.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: DC-PDIL51

• Part Number: 51454818-175

• Product Type: Digital Input Module

• Series: C Series

• Input Voltage: 24 VDC nominal

• Input Channels: 16 isolated digital inputs

• Input Type: Sinking or sourcing (configurable)

• Input Isolation: 1500 V RMS channel-to-system isolation

• Response Time: <10 ms typical

• Status Indication: LED channel indicators

• Dimensions: 2.2 cm × 12.4 cm × 12.6 cm

• Weight: 0.1 kg

• Operating Temperature Range: 0°C to +60°C

• Storage Temperature Range: -40°C to +85°C

• Humidity: 5%–95% non-condensing

• Mounting: DIN-rail or chassis-mounted

• Country of Origin: United States

Applications

The DC-PDIL51 module is ideal for use in:

• Honeywell Series C and Experion PKS control systems

• Process monitoring and alarm input acquisition

• Industrial automation systems requiring robust 24VDC input interfacing

• Power generation, petrochemical, and manufacturing facilities

FAQ

Q1: Is the DC-PDIL51 compatible with older Honeywell I/O racks?
A1: Yes, it is backward compatible with most Series C chassis when used with appropriate termination assemblies.

Q2: How many field devices can be connected to this module?
A2: It supports up to 16 digital input channels, each capable of independent signal detection.

Q3: Does it support hot-swap replacement?
A3: Yes, the module is designed for online replacement without system shutdown, ensuring minimal process interruption.