Get 1783-NATR now to simplify plant-wide IP address management
The Allen-Bradley 1783-NATR is a compact, DIN-rail mounted Network Address Translation (NAT) router explicitly engineered to solve the most common IP addressing headaches in modern industrial automation. By translating IP addresses between a localized machine network and the broader public plant network, it allows Original Equipment Manufacturers (OEMs) to deliver identical machines with identical IP addresses, completely eliminating network conflicts when integrating into the end-user\’s IT infrastructure.
Technical Specifications
- Translation Capacity: Supports up to 32 specific 1:1 NAT translation mappings.
- Network Ports: Three (3) total ports; one (1) Public port and two (2) Private ports.
- Topology Support: Enables Linear or Device Level Ring (DLR) topologies on the private machine network.
- Configuration: Web-page interface or Studio 5000 Electronic Data Sheet (EDS) Add-on Profile (AOP).
- Backup: SD card slot for storing device configurations.
- Operating Temperature: Rated from -40°C to +60°C.
Comprehensive Technical Overview
Without a NAT router, commissioning a new machine on a factory floor requires manually changing the IP address of every single PLC, HMI, and variable frequency drive to match the plant\’s corporate subnet. This tedious process often leads to broken communication paths and requires modifying validated PLC code. The 1783-NATR eliminates this. It acts as an intelligent gateway. The two «Private» ports connect to the machine\’s internal components (which can remain on a standard 192.168.1.X subnet), while the single «Public» port connects to the factory network (e.g., a 10.10.10.X subnet). You simply configure the 1783-NATR to map a specific private IP to a specific public IP. The translation occurs in real-time at wire speed, ensuring seamless data acquisition for SCADA systems and remote maintenance access, without the plant network ever seeing the private IP addresses.
Professional Installation Advice
When installing the 1783-NATR, ensure your public and private networks are physically segregated. Connect your plant-wide network cable strictly to the top «Public» port. Wire your localized machine devices into the bottom «Private» ports. The private ports support DLR; if your machine utilizes a ring topology, simply connect the two ends of the ring to these two ports to close the loop and establish redundancy. Electrically, torque the power terminals to exactly 0.50 – 0.56 N•m to prevent voltage drops.
Expert Configuration Tips
Always utilize the SD card backup feature. After configuring your translation rules via the built-in Web Device Manager, saving the profile to an SD card makes the router completely plug-and-play. If the hardware fails due to a severe electrical strike, a technician only needs to move the SD card to the replacement 1783-NATR to instantly restore the complex routing tables, ensuring near-zero downtime for the production line.
Frequently Asked Questions (FAQs)
Q: Does the 1783-NATR support DHCP/BOOTP?
A: Yes, you can utilize the BOOTP DHCP EtherNet/IP Commissioning Tool to assign its initial IP address.
Q: How many devices can I translate?
A: The router supports a maximum of 32 explicit 1:1 NAT mapping rules.
Q: Can it redirect specific protocols?
A: Yes, it enables the redirection of selected protocols such as CIP, ICMP, HTTP, and DNS for stable and secure network connections.
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