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Products Description
Technical Specifications
Model: PM783F (Part No:3BDH000364R0005)
Series: AC700F Controller for ABB Freelance DCS
CPU: 32‑bit PowerQUICC processor, 96 MHz
Memory: 10 MB total memory, 2 MB battery‑backed SRAM
Supply: 24 VDC (10 W power consumption)
Interfaces: Ethernet, two configurable serial ports, Profibus DP interface
Max I/O capacity: Up to 300 I/O points, supports up to 8 local I/O modules
Data backup: 3.6V lithium battery for SRAM and real‑time clock
Operating Temperature: 0℃ ~ +60℃
Applicable System: ABB Freelance DCS AC700F platform
Feature: Front‑panel LCD display and operation keys; no built‑in redundancy
PM783F is a compact non‑redundant processor unit for ABB Freelance AC700F distributed control system, designed for small‑to‑medium process automation projects. Compliant with IEC61131‑3 standard, it supports multi‑tasking execution including cyclic tasks, event‑driven tasks and fast PLC‑type tasks. The processing speed reaches 0.71 ms for 1000 boolean logic operations, delivering reliable real‑time control for field equipment.
Equipped with front‑panel LCD and keypad, it can display module status, diagnostic alarms and support local controller locking to prevent unauthorized program download. Ethernet port supports Modbus TCP, serial ports support Modbus RTU for third‑party device connection. It can work with local S700 I/O modules and Profibus field devices. Rugged DIN‑rail mounting hardware ensures stable performance in industrial workshop environments.
Typical applications include water treatment, heating supply, small chemical plants and municipal automation. Back up all application programs before replacement and confirm Freelance software version compatibility (V9.1 or above required). Fully cut off power supply during module installation and removal. Suitable for on‑site fault replacement and long‑term spare stocking for running AC700F Freelance systems.
