Our advantage

Global Logistics

We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.

Brand new and original

Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.

24-hour service

We provide 7*24 hours service to our customers. We will be there whenever you need us.

Price advantage

All our products are priced very favorably because we have our own warehouse and supply.

FAQ (10 Questions & Answers)

Below are ten QA‑style FAQs about the 8120E, written clearly and in natural tone.

Q1: What does “TMR” stand for and why is it used?
A1: TMR stands for Triple‑Modular Redundancy. It means three separate computing channels run the same logic in parallel. If one fails or produces a different result, the other two agree and override it. That ensures highly reliable, fault‑tolerant operation.

Q2: Is the 8120E suitable for SIL 3 applications?
A2: Yes. The 8120E is certified for Safety Integrity Level 3, which is one of the highest levels of functional safety. It processes safety logic in a way that minimizes the risk of dangerous failure.

Q3: Can the 8120E handle both analog and digital I/O?
A3: Absolutely. The controller can be configured with a mix of analog and digital inputs and outputs—commonly up to 128 digital and 32 analog channels—but you can tailor that to your system’s needs.

Q4: How does the controller alert when a fault occurs?
A4: It has built‑in diagnostics that constantly check health status. If a fault is detected, it logs the event, flags the affected channel, and sends diagnostics through the communication interfaces for operator notification or logging.

Q5: Can the controller operate in extreme temperatures?
A5: Yes, it’s built to work in harsh environments. It operates reliably in temperatures from –40 °C up to +70 °C, making it suitable for outdoor and industrial sites.

Q6: How is the 8120E powered?
A6: It uses dual‑redundant 24 V DC power supplies (range 20–30 V). If one supply fails, the other can maintain operation, preserving safety functionality.

Q7: Is network redundancy supported?
A7: Yes. The 8120E includes at least dual Ethernet ports for network redundancy. It also supports serial or fieldbus protocols via optional modules, enabling flexible and failsafe communication.

Q8: What kind of maintenance does it require?
A8: Routine maintenance is minimal. Most checks involve verifying diagnostics logs, testing I/O integrity, and occasionally running self‑tests. It is designed for low intervention and high uptime.

Q9: How large is the controller?
A9: The 8120E measures approximately 440 mm tall by 180 mm wide by 450 mm deep, and weighs around 18 kg.

Q10: Can I expand I/O later?
A10: Yes, the system is modular. You can add or replace I/O modules—analog or digital—as needed. This modularity simplifies upgrades and site customization.

Authenticity guarantee

All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.

Free warehouse

We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.

Technical Team

Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.

Thoughtful after-sales service

24-hour after-sales service guarantee team, professional and standardized management service system.