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SS8580 – Converter from Modbus TCP Ethernet to Modbus RTU RS485

The SS8580 connects all devices with Modbus RTU of a RS-485 serial line to the Ethernet with Modbus TCP protocol.


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The SS8580 connects all devices with Modbus RTU of a RS-485 serial line to the Ethernet with Modbus TCP protocol.
By the integrated web server it is possible to configure the option of Modbus TCP ( IP address, subnet mask, etc..) and Modbus RTU (baud rate, etc…)

The SS8580 realizes a full electrical isolation against the effects of all ground loops. LED signalling for Ethernet activity, serial line communication and power supply allow direct monitoring of the system functionality. Connection is by removable screw-terminals (inputs and power supply) and RJ45 plug (Ethernet).

 The SS8580 is housed in a rough self-extinguishing plastic enclosure of 22.5 mm thickness, suitable for EN 50022 standard DIN rail.

Product Features

  • Interface Ethernet 10/100 Base-T Modbus TCP
  • RJ45 Connector
  • Configuration via integrated web server
  • Serial interface RS-485
  • Modbus RTU Master
  • Baud rate up to 115.2 Kbps
  • Distance up to 1200 m, up to 32 modules connected in multi-point
  • Connection by removable screw-terminals
  • LED signalling for Link/Act Ethernet, power supply
  • Galvanic isolation on all the ways
  • EMC compliant – CE mark
  • In compliance to EN-50022 DIN rail mounting

For more information, please see the product specifications sheet and user manual.  

Typical @ 25°C and in the nominal conditions

In Compliance with:
Ethernet IEEE 802.3 and RS-485
Network Interface:
Ethernet 10/100Base-T
Protocol Modbus TCP

Ethernet: RJ-45
RS-485: removable screw terminals pitch 5.08 mm
Power Supply: removable screw terminals pitch 5.08 mm

RS-485 Interface
Baud Rate configurable up to 115.2 Kbps
Max Distance / Baud Rate Ratio 1.2 Km @ 38400 bps
2 Km @ 19200 bps
3 Km @ 9600 bps
4 Km @ 4800 bps
5 Km @ 2400 bps
7 Km @ 1200 bps
Number of modules in multi-point Up to 32
Switching Time TX/RX (RS-485) 150 µs
Termination Resistance 120 Ω
Power Supply  10 to 30 Vdc
Power Supply Current Consumption 45 mA typ. @ 24 Vdc
80 mA max
Isolation Ethernet / RS485: 1500 Vac 50 Hz, 1 Min.
Power Supply / RS-485: 1500 Vac 50 Hz, 1 Min.
EMC EN 61000-6-2
EN 61000-6-4
Operating Temperature -20 to +60 °C
Storage Temperature -40 to +85 °C
Humidity (non condensing) 0 to 90 %
Maximum Altitude 2000 m
Housing Material Self-extinguishing plastic
Mounting EN-50022 DIN rail
EN-50035 DIN rail
Dimensions in mm. (W x H x D) 100 x 120 x 22.5
IP Code IP20
Weight ∼ 160 g
IOlog SS8580 Specifications IOlog SS8580 Specifications

IOlog SS8580 User Guide IOlog SS8580 User Guide

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