Honeywell 621‑9930 | Parallel I/O Module | IPC‑620 Systems

Overview

The Honeywell 621‑9930 is a high-performance Parallel I/O Module (PIOM) designed for Honeywell UCN, IPC‑620, and Universal I/O systems. It provides a reliable interface between the processor rack and additional I/O racks, decoding I/O address data from the Central Processing Module (CPM) and generating precise card-select signals for accurate digital and analog I/O control.

Key Functions

• Establishes a communication link between processor rack and multiple I/O racks

• Decodes I/O module address data from the CPM

• Generates card-select signals to control I/O modules

• Supports multiple I/O configurations: Digital Input (DI), Digital Output (DO), and Analog Input (AI)

• Flexible installation: Full rack Slot N, Half rack Slot H

Technical Specifications

Applications

Ideal for process control, distributed I/O system expansion, industrial monitoring, and high-performance digital/analog signal acquisition.

FAQ

Q: Which I/O module types does this module support?
A: It supports DI, DO, and AI modules and can be configured in various I/O combinations.

Q: What installation requirements should I follow?
A: For full racks, use Slot N; for half racks, use Slot H. Ensure a stable 24 V DC power supply.

Q: Is the response time suitable for high-speed data acquisition?
A: Yes, with a response time of under 10 ms, it supports most high-speed industrial I/O applications.