The Honeywell 621-9940C is a Serial Input/Output (I/O) Module that is part of the Honeywell PLC-5 family of programmable logic controllers. It is used to communicate with and control serial devices, such as printers, bar code scanners, and other industrial equipment.
The 621-9940C supports both RS-232 and RS-485 serial communication protocols, and it can be configured to operate in either half-duplex or full-duplex mode. The module also supports a variety of baud rates, data bits, parity bits, and stop bits.
Specifications:
- Serial communication protocols: RS-232, RS-485
- Half-duplex/full-duplex operation
- Baud rates: 300 to 19,200 bps
- Data bits: 7 or 8
- Parity bits: None, even, odd
- Stop bits: 1 or 2
- Number of serial ports: 12
- Buffering: 1024 bytes per port
- Error detection and correction: CRC-16, parity
- Modbus support: Master, slave
- Isolated ports: Yes
- Wide operating temperature range: -25 to 85 degrees Celsius
- Conformal coating: Yes
- Compact size: 1.5 inches x 4 inches x 1 inch
- Weight: 0.88 kg
Features:
- 12 serial ports: This allows the module to communicate with multiple devices simultaneously.
- Buffering: This helps to ensure that data is not lost when communicating with slow devices.
- Error detection and correction: This helps to ensure that data is transmitted and received accurately.
- Modbus support: This allows the module to communicate with Modbus devices.
- Isolated ports: This helps to protect the module from damage caused by electrical noise.
- Wide operating temperature range: This allows the module to be used in a variety of environments.
- Conformal coating: This helps to protect the module from moisture and dust.
- Compact size: This allows the module to be installed in tight spaces.
FAQ & Contact:
🌟 About Us:
- Company Type: We are a trading company.
- Lead Time: Typically 1 to 3 days for in-stock items. Negotiable for out-of-stock goods.
- Samples: Availability and charges are subject to the specific products and order quantity.
- Payment Terms: 100% T/T before shipping. Negotiable for larger quantities.
Shipping Details:
- 📦 For in-stock items, we ship within 3 days upon receiving payment.
- ✈️ Worldwide shipping via DHL, UPS, FedEx, TNT, and EMS.
- 📬 Please inform us if you have a preferred shipping agent.
- 📦 Parts are packed in sturdy boxes. Notify us for any special packaging needs.
- 🕓 Shipping occurs before 4:30 PM, and we'll provide a tracking number post-shipment. Delivery takes approximately 7 to 15 days.
- 📧 Kindly email us upon receiving the package.
- 📝 When inquiring about shipping costs, include necessary details:
- 1). Zip code
- 2). Company name (if applicable) and your name
- 3). Phone number and extension
Company Services:
- 🚀 Swift delivery (1-3 days for in-stock items)
- 🌍 Extensive experience (Over 10 years in sales)
- 📦 Large inventory (Various brands and global warehouses)
- 🛡️ Quality assurance (Clear product conditions with a 1-year warranty)
Connect With Us
📞 Phone: +86 18857985841
📧 Email: sales@controltech-supply.com
💬 WhatsApp: 8618857985841
🕒 Business Hours: Online Support 24/7
📍 Address: 1100 Linjiang East Road, Bailongqiao, Wucheng District, Jinhua City, Zhejiang Province
🌟 For all your industrial needs, count on our expertise and dedication! Contact us anytime for seamless and reliable service. 🌟
More Products In Stock:
| Product | Description | Link |
|---|---|---|
| 10102/2/1 | Digital Input Module in Stock | Link |
| 51202329-302 | I/O Link Cable Pair Drop for Chnl IOL1 | Link |
| 8U-TAIMA1 | Low-Level AI IOTA Uncoated | Link |
| 900G03-0102 | HC900 Controller Digital Input Module | Link |
| MC-PAIH03 | High-Level Analog Input Processor 16 Inputs | Link |
| 8U-TDILB1 | Digital Input Module | Link |
| 10213/2/3 | Safe DO Module 48 VDC 0.75 A 4CH CC | Link |
| FC-RUSPSU-R | SM RIO Redundant PSU System 24VDC 12A | Link |
| 8C-PAIMAI | Digital Input/Output I/O Module | Link |
| MC-TSTX13 | HLAI STI 16 SCRw | Link |
| 8C-PAOHA1 | Analog Output Module in Stock | Link |
| CC-TAIX01 | 16-Channel Analog Input Module | Link |
| 8U-PDILA1 | Digital Input Module 24VDC Uncoated | Link |
| 8C-TAIDB1 | Analog Input IOTA Differential, Red, Coated | Link |
Product Condition
Factory New: New, current-production products sourced directly from the manufacturer.
New in Sealed Package: Unused products supplied in their original, factory-sealed packaging.
New in Original Package: Unused products supplied in original manufacturer packaging that was not factory-sealed.
Warranty
Products are covered by a 12-month warranty unless otherwise specified in the quotation or product listing. If a product has a quality issue, it can be exchanged within 12 months or refunded in full in cash. Contact our sales team with your order details if you require warranty assistance.
Shipping Information
In-Stock Items: Same-day dispatch is available for most in-stock orders with cleared payment received before 2:00 PM (UTC+8).
Indent Items: Typical lead time is 1–3 weeks, depending on availability and product scarcity.
Customs & Documentation
International shipments are prepared with a commercial invoice, packing list and available supporting documents. Consignee details, declared value and shipping terms are confirmed before dispatch. Tracking information is provided after shipment.
Payment
Payment is accepted by bank wire transfer only, in USD, EUR, GBP or RMB/CNY. Credit cards and credit terms are not accepted. Cleared payment is required before dispatch unless otherwise agreed in writing.
30-Day Returns
We accept return requests within 30 days of delivery for international orders, subject to our return policy.
To qualify, products must be unused, in their original condition and packaging, with proof of purchase.
How to Request a Return
Contact our sales team with your order number, product details and reason for return. Please obtain return authorization and the correct return address before shipping any items back. Returns are made by mail. Return shipping is not free. It is charged at the actual international air-freight cost based on weight and volume.
Refunds are processed according to our published return and refund policy after the returned items have been reviewed.
Quality issues
Quality issues are covered by the 12-month warranty. Within 12 months, a quality issue can be exchanged or refunded in full in cash.
For full terms, please refer to our Refund Policy.
Frequently ask questions
Click Request a Quote on the product page and provide the part number, quantity, and destination country. Our sales team will reply with availability, pricing, and estimated delivery time.
We supply original industrial automation parts in different new-product conditions, including Factory New, New in Sealed Package, and New in Original Package. The condition of each item is specified in...
Yes. We source obsolete and hard-to-find PLC, DCS, and industrial control components. Send us the exact part number and required quantity so we can check availability.
Most in-stock orders with cleared payment received before 2:00 PM (UTC+8) qualify for same-day dispatch. Indent items typically require 1–3 weeks, depending on availability.
Yes. We ship industrial automation spare parts worldwide. Shipping costs and transit times depend on the destination, package weight, dimensions, and local import requirements.
We commonly ship through DHL, FedEx, UPS, and other international courier services. The carrier is selected based on the destination, shipment size, and delivery requirements.
We accept bank wire transfers in USD, EUR, GBP, and RMB/CNY. Full cleared payment is required before shipment unless otherwise agreed in the written quotation.
Products generally include a 12-month warranty unless otherwise stated in the quotation or product listing. Contact our team with your order details for warranty assistance.
Eligible products may be returned within 30 days of delivery, subject to our return policy. Contact our team for return authorization and instructions before sending any items back.
Yes. Tracking details are provided after dispatch. Commercial invoices, packing lists, and available supporting documents are prepared for international shipments.