This document explains the purpose, wiring, and programming of the Sense Input ports on ProLink.r and ProLink.z processors for monitoring device states and triggering macros.

Sense Ports Overview

• Both models have two sense ports near network and RS-232 connections, with pins capable of detecting 0-24VDC voltages to determine high or low states.
• Pins 1 & 2 serve as sense inputs, detecting high (3-24VDC) or low (ground or float) conditions, useful for sensing device power or relay states.
• Pins 3 & 6 are reserved for future accessories; pins 4 & 5 provide 12VDC output for dry contacts or sense inputs; pins 7 & 8 are ground.
• The sense port can monitor device power status via USB, dry contacts, or 12V triggers, with status LEDs indicating active high or low signals.

Uses and Applications

• Commonly used to detect if a device is on or off, especially when no discrete power command exists.
• Can be wired to USB ports, dry contact relays, or 12VDC triggers, with verification via status LEDs.
• Enables creation of discrete power commands through programming logic, such as If-Then-Else statements, to automate turning devices on or off based on sensed conditions.
• Facilitates master power off macros, system sleep timers, and power control macros, enhancing automation and system integration.

Programming and Implementation

• The Power Sense command incorporates logic to trigger macros based on sense port states.
• Discrete power commands can be programmed to respond to high or low signals, allowing for system-wide power management and automation.
• The document emphasizes configuring hardware correctly and verifying signal states before implementing control logic in PCS.

Overall, the sense ports provide flexible, hardware-based monitoring for automation, enabling system status detection and remote control through simple wiring and programming.