Foxboro P0916NJ-0B External Switch Module

Overview

The Foxboro P0916NJ-0B External Switch Module supports reliable discrete signal monitoring within the Foxboro I/A Series DCS.
It connects pushbuttons, limit switches, relays, and contactors directly to the control system with consistent performance.
Moreover, the module focuses on stable input acquisition, electrical protection, and long-term industrial availability.
Engineers commonly select this module when deterministic digital status feedback remains critical for safe plant operation.

Functional Highlights

First, the module captures external switch states accurately and forwards clean digital data to the DCS.
Moreover, integrated electrical isolation minimizes noise influence and protects controllers from field-level disturbances.
In addition, the compact mechanical design simplifies cabinet layout and reduces installation time significantly.
Therefore, maintenance teams benefit from predictable diagnostics and straightforward module replacement procedures.

Technical Data

Model Number: P0916NJ-0B
Module Type: External Switch Module, Digital Input Interface
Input Channels: 8 or 16 digital channels, configuration dependent
Input Type: Dry contact or wetted contact
Input Voltage: 24 VDC
Isolation: Channel-to-channel and channel-to-system isolation
Processor Architecture: Single processor, supports redundant pairing
Memory: 16 MB SDRAM, 32 MB Flash
Power Consumption: Approximately 8.5 W
Operating Temperature: 0 °C to +60 °C
Storage Temperature: −40 °C to +85 °C
Humidity Rating: 5% to 95%, non-condensing
Mounting Options: DIN rail or rack mounting
System Compatibility: Foxboro I/A Series Distributed Control System

Typical Applications

For instance, operators use this module to monitor valve limit switches in continuous process environments.
Moreover, it integrates smoothly with Foxboro FBM architectures and standard I/A Series cabinets.
In addition, power generation facilities rely on the module for breaker status and auxiliary equipment monitoring.
Therefore, the P0916NJ-0B suits petrochemical, manufacturing, and utility automation systems demanding dependable discrete inputs.

Reliability & Service

Foxboro designs the P0916NJ-0B for continuous duty under demanding industrial conditions worldwide.
Moreover, robust component selection ensures predictable behavior during temperature fluctuations and electrical disturbances.
Therefore, lifecycle support and spare availability help plants maintain consistent control system uptime.

FAQ

Q: What types of field devices can connect to the P0916NJ-0B module?
A: It supports pushbuttons, limit switches, relays, contactors, and other standard discrete field devices.

Q: Does this module support redundant system architectures?
A: Yes, engineers typically install paired modules to achieve fault-tolerant I/A Series configurations.

Q: What input voltage does the module expect from field devices?
A: The module commonly operates with 24 VDC signals using dry or wetted contacts.

Q: Where is this module typically installed within a control system?
A: It mounts on DIN rails or racks inside control cabinets within Foxboro I/A Series systems.