Communication gateway NT 151-RE-RE
industrialModbus TCPSercos III

Communication gateway - NT 151-RE-RE - Hilscher - industrial / Modbus TCP / Sercos III
Communication gateway - NT 151-RE-RE - Hilscher - industrial / Modbus TCP / Sercos III
Communication gateway - NT 151-RE-RE - Hilscher - industrial / Modbus TCP / Sercos III - image - 2
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Characteristics

Type
communication, industrial
Network
Modbus TCP, Sercos III, EtherCAT, Modbus TCP/IP, ProfiNet, Powerlink, Ethernet TCP/IP, Ethernet, EtherNet/IP
Other characteristics
DIN rail, 4 ports, IP20, managed, protocol converter, multi-protocol
Transfer rate

Max.: 100,000,000 B/s

Min.: 100,000,000 B/s

Description

Product overview
The NT 151-RE-RE is a Real-Time Ethernet gateway for bidirectional I/O data exchange between two industrial Real-Time Ethernet networks. Manufactured by Hilscher, the device supports integration of homogeneous and heterogeneous networks and enables data mapping between primary and secondary networks for Master/Slave or Slave/Slave configurations.

Operation and architecture
Two independent Ethernet controllers, each with two dual RJ45 ports and integrated switching, provide secure separation of networks. Star, ring and inline topologies are supported without additional hardware. Controllers exchange only mapped I/O data via a data buffer, with typical data processing time below 10 ms. Firmware can be preloaded or later uploaded (e.g. via SD card); a USB diagnostic port is provided for commissioning and troubleshooting.

Highlights
  • Loadable firmware for flexible protocol support (PROFINET, EtherCAT, EtherNet/IP, Sercos, Open Modbus/TCP, POWERLINK)
  • Universal gateway for conversions (Master/Slave or Slave/Slave)
  • Integration and coupling of network segments across protocol boundaries
  • Secure network separation via data buffer
  • Fast device exchange by loading configuration from SD memory card
  • Diagnosis and configuration via USB interface

Supported protocols
  • Sercos Master
  • PROFINET IO-Controller
  • EtherNet/IP Scanner
  • EtherCAT Master
  • Sercos Slave
  • PROFINET IO-Device
  • POWERLINK Controlled Node
  • Open Modbus/TCP Server
  • Open Modbus/TCP Client
  • EtherNet/IP Adapter
  • EtherCAT Slave

Technical specifications
  • Part number: 1722.122
  • Commercial description: Gateway Real-Time Ethernet to Real-Time Ethernet (Slave/Slave or Master/Slave)
  • Controllers: Primary network X2 / Secondary network X3 — netX 51 / netX 100
  • RAM: netX 51: 8 MB SDRAM; netX 100: 8 MB SDRAM
  • FLASH: netX 51: 4 MB serial Flash; netX 100: 4 MB serial Flash
  • SD memory card (optional): max. 2 GB (no SDHC/SDXC)
  • Supply voltage: 24 V DC ± 6 V
  • Typical current at 24 V: 190 mA
  • Power consumption: 4.78 W
  • Power connector: MINI COMBICON, 5-pin; reverse voltage protection
  • Interfaces X2 / X3: Ethernet 100BASE-TX (isolated), 2 × RJ45 per network, auto-negotiation and auto-crossover supported
  • Diagnostic interface: USB (Mini-USB)
  • LEDs: SYS, APL, COM0..COM3, 4×LINK, 4×ACT
  • Operating temperature: -20 … +60 °C (with ≥17.5 mm side clearance); -20 … +50 °C (in contact with adjacent device, neighbor surface ≤ +70 °C)
  • Humidity: 10 … 95 % non-condensing
  • Dimensions (L×W×H): 113.6 × 22.6 × 99 mm (without connector)
  • Weight: 121 g
  • Degree of protection: IP20
  • Mounting: DIN top-hat rail (EN 60715)
  • Configuration software: SYCON.net
  • Conformity: RoHS; CE and UKCA marked

Catalogs

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Exhibitions

Meet this supplier at the following exhibition(s):

CIBUS TEC
CIBUS TEC

27-30 Oct 2026 PARMA (Italy)

  • More information

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