Pdp-14 Programmable Controller Product Summary

This document provides a product summary for the PDP-14, a solid-state programmable controller designed for repetitive manufacturing and materials handling operations.

Key Features and Functions:

• System Architecture: The PDP-14 acts as a direct replacement for conventional control systems, utilizing plug-in modules and standard 115 VAC or DC input/output signals.
• Control Unit: It uses an easily alterable memory (Read Only or Read/Write) to store control sequences. It operates by testing input states, deciding on necessary functions, and setting outputs accordingly, performing these operations in milliseconds.
• Input/Output: The system uses I-boxes (for inputs like limit switches and push buttons) and O-boxes (for outputs like solenoids and motor starters) to isolate the internal solid-state circuits from external power.
• Accessory Functions: A-boxes support specialized tasks such as timing, retentive memory for storing critical data during power loss, and temporary storage.
• Computer Integration: The system can be monitored by a general-purpose computer (such as the PDP-8 or PDP-11) for status reporting or emergency control.
• Programming: The PDP-14 is designed for control engineers rather than programmers. Development aids include CRT-14 (for relay ladder diagrams) and the BOOL-14/SIM-14 software (for Boolean logic and system simulation).
• Maintenance: The system includes indicator lamps and a dedicated "interrogator box" (BT14-A) to help technicians quickly identify whether a malfunction is in the controller or a field device, facilitating fast repair.