---
lang: "en"
title: "R-KEY-LT IEC 61850: ModBUS IEC 61850 Gateway, 1 serial port, 1 Ethernet"
sku: "R-KEY-LT IEC 61850"
canonical_url: "https://shop.marcomweb.it/en/modbus/r-key-lt-iec-61850-modbus-iec-61850-gateway-1-serial-port-1-ethernet"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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R-KEY-LT IEC 61850: ModBUS IEC 61850 Gateway, 1 serial port, 1 Ethernet (SINGLE CLIENT)

The **R-KEY-LT IEC 61850** is a **Modbus<->IEC 61850** gateway that allows integration between the Modbus protocol, used in industrial contexts for communication between devices such as PLCs, sensors, and actuators, and the **IEC 61850** standard, designed for communication in electrical substations and energy automation systems. Equipped with **one serial port** and **one Ethernet port**, the R-KEY-LT IEC 61850 acts as a translator between the two protocols, allowing Modbus-based devices to communicate with IEC 61850 compliant systems. This is particularly useful in energy automation applications, where **secure, reliable communication** and interoperability between control and protection devices in substations are critical. The gateway enables the integration of existing Modbus infrastructures with modern IEC 61850 systems, supporting real-time data collection, processing, and distribution for **advanced monitoring and control** of electrical grids, thereby improving the efficiency and safety of energy processes.

**Note: KEY series devices support only one IEC 61850 client.**

## TECHNICAL FEATURES

- **Power Supply**: 10..40 Vdc; 19..28 Vac
- **Power Consumption**: ~1 W
- **Isolation**: 1.5 kVac
- **Status Indicators**:

 

- Power Supply
- Rx-Tx serial communications
- Ethernet link and traffic
- **Connections**: Removable screw terminals 7/2 way, 5 mm pitch
- **Ethernet Port**: Nr 1 Fast Ethernet 100 Tx port, RJ45 (max 8 TCP-IP Clients / max 3 TCP/IP Servers)
- **Serial Port**: Nr 1 switchable RS232/RS485 serial port, max baud rate 115k
- **Industrial Protocols**:

 

- IEC 61850 Server
- ModBUS TCP-IP
- ModBUS RTU
- ModBUS ASCII
- MMS
- **Operating Modes**:

 

- IEC 61850 Server ↔ ModBUS RTU Master Gateway
- IEC 61850 Server ↔ ModBUS TCP-IP Client Gateway
- **Memory size for variables**: 512 Byte R/W
- **Max No. of TCP-IP Server nodes**: 3
- **Max No. of ModBUS RTU/ASCII Slave nodes (per serial port)**: 128
- **Encrypted connection with certificates**: x
- **TLS 1.2 connection**: x
- **X.509 Certificates**: x
- **Configuration**: Via DIP-switch or Webserver
- **Firmware Update**: via Web Server
- **Installation**: For DIN rail (IEC EN 60715)
- **Protection Degree**: IP20
- **Operating Temperature**: -25..+65°C
- **Dimensions (wxhxd)**: 53x90x32 mm
- **Weight**: 80 g

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Source: https://shop.marcomweb.it/en/modbus/r-key-lt-iec-61850-modbus-iec-61850-gateway-1-serial-port-1-ethernet

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