Product Specification
| Parameter | Specification | Image |
|---|---|---|
| Manufacturers | Honeywell |  |
| Product No. | 621-9940 | |
| Product Type | Serial Input Output Module | |
| Output Channels | 8–16 digital outputs (relay or transistor types, model-dependent) | |
| Power Supply | 24 V DC ±10%, 5–15 W (typical power draw) | |
| Communication Ports | RS-485 x1 (optional dual ports) | |
| Mounting | DIN-rail or panel-mount (compatible with Honeywell control panels/racks) | |
| Operating Temperature | -20°C to +60°C (industrial-rated) | |
| Storage Temperature | -40°C to +85°C | |
| Humidity | 5% to 95% non-condensing |
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Product Details
More Description
The 621-9940 HONEYWELL Serial Input/Output Module is a communication module designed for industrial automation systems. It offers versatile I/O functionality with 8, 16, or 32 points for serial communication, ensuring reliable data transmission between devices. Equipped with status LEDs, the module provides easy monitoring of operational status. Although discontinued by the manufacturer, it remains a valuable component for legacy systems requiring serial communication in process control and automation applications.
Feature
Multiple I/O Points: Configured with 8, 16, or 32 serial input/output points, providing flexible options for various system requirements.
Status LEDs: Equipped with LEDs for real-time status monitoring, helping users easily track the module's operational condition.
Reliable Communication: Ensures robust serial communication, essential for seamless data transfer in industrial control systems.
Compact Design: Designed for efficient integration into control panels, offering space-saving benefits.
Application
Industrial Automation Systems: It serves as a critical component for connecting and controlling serial devices in automated processes, including sensors, actuators, and controllers.
Control and Monitoring Systems: Used in SCADA systems and other supervisory control setups where real-time monitoring of serial data is required.
Legacy System Integration: Often deployed in older control systems to maintain compatibility with existing serial devices, ensuring continued functionality.
Frequently Asked Questions
| What does the 621-9940 module do? |
The 621-9940 is a serial I/O module designed for communication in industrial automation systems. It handles data exchange between serial devices like sensors, actuators, and controllers. |
| What are the input/output options available with this module? |
The module supports up to 8, 16, or 32 input/output points, providing flexibility for various industrial applications. |
| Is the 621-9940 module compatible with all control systems? |
The module is primarily designed for Honeywell's systems but may also work in other setups that support serial communication protocols. Check system specifications for compatibility. |
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