top of page

Siemens 4NA1104-0DC20

Siemens

SIMATIC S7-1500 Controllers

S7-1500

4NA1104-0DC20

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

​

2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Your Guarantee: Warranty & Lifetime Support

Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.

Comprehensive Repairs You Can Depend On

We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.

Save Significantly

Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Repair flow chart new_edited.jpg

Product Description

The Siemens 4NA1104-0DC20 is a robust and reliable digital input module designed for industrial automation applications requiring precise and dependable signal acquisition. This module features 16 channels, each configurable for a wide range of DC input voltages, ensuring compatibility with diverse sensor and actuator types. Its advanced diagnostic capabilities, including wire break detection and short-circuit monitoring, guarantee system integrity and minimize downtime. The 4NA1104-0DC20 boasts a high level of electromagnetic compatibility (EMC), making it suitable for deployment in harsh industrial environments prone to electrical noise and interference. Its compact design facilitates easy integration into existing control systems, while its rugged construction ensures long-term durability and dependable performance. This module is an essential component for achieving accurate and consistent data acquisition in demanding industrial settings, contributing to improved process control and enhanced operational efficiency.

Technical specifications

  • The Siemens 4NA1104-0DC20 is a robust and reliable industrial Ethernet switch designed for demanding automation environments. This managed switch features eight 10/100/1000Base-TX ports and four 100/1000Base-X SFP ports, providing ample bandwidth and flexibility for network connectivity. The device supports a comprehensive suite of Layer 2 switching functions, including VLAN, QoS, and link aggregation, ensuring optimal network performance and security. Advanced security features such as port security, access control lists (ACLs), and IEEE 802.1X authentication protect the network from unauthorized access. The 4NA1104-0DC20 is built with a ruggedized metal enclosure and operates in a wide temperature range, making it suitable for harsh industrial conditions. Redundant power inputs and a relay output for alarm signaling enhance system availability. Configuration and management are facilitated through a user-friendly web interface, command-line interface (CLI), and Simple Network Management Protocol (SNMP). The switch complies with industry standards such as IEEE 802.3, IEEE 802.1Q, and IEEE 802.1p, ensuring interoperability with other network devices. This product is an ideal solution for industrial automation, transportation, and other applications requiring a dependable and secure network infrastructure.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

Buying Options

To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

American Flag

Ships from Rochester, NY

bottom of page