Honeywell 621-9938 Serial I/O Module
$209.00
$450.00
Description
Product Description
The Honeywell 621-9938 Serial I/O Module (SIOM) delivers reliable serial communication for IPC 620, IPC 621, and TDC 3000 control systems. It enables seamless integration between controllers and serial-based field devices, including sensors, actuators, HMIs, and printers. Designed for industrial environments, this module ensures continuous operation with dual redundant configurations and real-time diagnostic monitoring.
Moreover, the 621-9938 supports multiple serial protocols, enhancing system flexibility and connectivity. Its front-panel status LEDs provide instant visibility of communication health, helping operators identify and resolve issues quickly. The module’s compact and rugged construction guarantees durability in harsh environments, making it ideal for mission-critical automation systems.
By implementing this module, engineers can achieve precise control, reliable data transfer, and uninterrupted communication across distributed control networks. It is commonly deployed in oil & gas, chemical processing, power generation, and manufacturing facilities, where consistent and secure communication is essential.
Key Features
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Serial interface supporting IPC 620/621 and TDC 3000 systems
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Supports 8, 16, or 32 points per slot
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Dual redundant configuration for enhanced system reliability
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Front-panel diagnostic LEDs for real-time monitoring
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High-reliability serial communication with multiple protocol support
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Industrial-grade construction for harsh environments
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Compatible with Honeywell 621-9939 Serial Link Module (SLM)
Technical Specifications
| Attribute | Details |
|---|---|
| Function | Serial communication interface for IPC 620/621 systems |
| Points Supported | 8 / 16 / 32 per slot |
| System Integration | Compatible with 621-9939 Serial Link Module |
| Redundancy | Dual redundant support |
| Data Rate | High-reliability serial communication |
| Dimensions | 33 × 23 × 13 cm |
| Weight | 1.54 lbs |
| Connector Type | RS-232 / RS-422 serial ports |
| Power Requirement | +5 VDC from rack |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
Typical Applications
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Distributed control systems in oil & gas plants
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Chemical and petrochemical process automation
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Power generation and utility management
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Manufacturing facilities requiring reliable serial communication
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Integration with sensors, actuators, printers, and HMIs
Support & Maintenance
The 621-9938 is backed by a 12-month warranty, ensuring dependable service and reduced downtime. Its diagnostic features simplify troubleshooting, enabling rapid response and system continuity. New or refurbished units are available from authorized suppliers, providing cost-effective options for industrial automation projects.
FAQ
Q1: Which controllers are compatible with the 621-9938 SIOM?
A1: It is compatible with Honeywell IPC 620, IPC 621, and TDC 3000 control systems.
Q2: How many points can each module support?
A2: Each module supports 8, 16, or 32 points per slot, depending on configuration.
Q3: Does the module support redundant operation?
A3: Yes, it supports dual redundant configurations to enhance system reliability.
Q4: What types of serial connections are available?
A4: The module provides RS-232 or RS-422 serial ports, depending on configuration.
Q5: Can this module operate in harsh industrial environments?
A5: Yes, it is built with industrial-grade construction for reliable operation in demanding conditions.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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