Overview
The ABB DO840 Digital Output Module is a high‑performance I/O unit designed for the S800 I/O system and ABB’s AC 800M controllers. It provides 16 galvanically isolated digital output channels, delivering reliable 24 V DC signals to actuators, relays, and other field devices. Moreover, the DO840 ensures fast response times and robust diagnostics, making it suitable for demanding industrial automation environments. In addition, its compact DIN‑rail design and hot‑swap capability simplify installation and maintenance, reducing downtime in mission‑critical operations. Therefore, engineers rely on the DO840 for consistent performance and seamless integration into distributed control systems.
Technical Data
| Specification | Value / Description |
|---|---|
| Product Type | Digital Output Module DO840 |
Typical Applications
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Process industries: Driving solenoids, relays, and actuators in chemical and pharmaceutical plants.
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Power generation: Controlling turbine and boiler systems with reliable digital outputs.
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Water treatment facilities: Operating pumps, mixers, and monitoring equipment.
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Manufacturing automation: Providing digital signals for machine interlocks, operator panels, and safety systems.
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Infrastructure systems: Supporting building automation and utility monitoring networks.
For instance, engineers often deploy the DO840 in distributed control systems where fast switching and galvanic isolation are essential. Moreover, its hot‑swap capability minimizes downtime, while diagnostic LEDs simplify troubleshooting.
FAQ
Q1: How many channels does the DO840 provide?
A1: It offers 16 galvanically isolated digital output channels.
Q2: What is the maximum output current per channel?
A2: Each channel supports up to 0.5 A at 24 V DC.
Q3: Is the DO840 hot‑swappable?
A3: Yes, it can be replaced without shutting down the system, reducing downtime.
Q4: What industries typically use the DO840?
A4: It is widely applied in power generation, chemical processing, water treatment, and manufacturing automation.
Q5: Does the DO840 provide diagnostics?
A5: Yes, it includes channel‑level supervision and LED indicators for real‑time monitoring.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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