UK Supplier of Data Acquisition & Thermal Imaging systems, software and services

SS8015 - 4ch +- 20mA or +-10V Modbus TCP-IP Server Module

The SS8015 module is a Modbus TCP server unit that can convert up to 8 (4 current and 4 voltage) analog signals. The input channels are electrically isolated from each other.

SKU SS8015 Category

£206.00 ex VAT

Available on back-order


The SS8015 module is a Modbus TCP server unit that can convert up to 8 (4 current and 4 voltage) analog signals. The input channels are electrically isolated from each other.

The device guarantees high accuracy and a stable measure versus time and temperature. In order to ensure the safety plant, the device is provided with a Watch-Dog Timer system. The Ethernet interface allows reading and writing in real time the values of the internal registers of the device. LEDs signal Ethernet activity and power supply, allowing direct monitoring of the system functionality. The built-in Web Server of SS8015 allows the remote visualization, acquisition of the analog inputs and the access to the main Ethernet programming parameters.

Connection is made by removable screw-terminals (inputs and power supply) and RJ45 plug (Ethernet). The SS8015 realizes a full electrical isolation between the lines, introducing a valid protection against the effects of all ground loops eventually existing in industrial applications. The device is housed in a rough self-extinguishing plastic enclosure which, thanks to its thin profile of 22.5 mm only, allows a high density mounting on EN-50022 standard DIN rail.

Product Features

  • Interface Ethernet 10/100 Base-T, Modbus TCP Server
  • 4 isolated input channels
  • Analog inputs for mA and Volt
  • Isolated power source for each channel to power passive sensors
  • Integrated web server to acquire the status of the analog inputs via browser
  • Remotely programmable
  • 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 and installation instructions, please see the product specifications sheet and user manual. 

Typical @ 25°C and in the nominal conditions

In compliance with Ethernet IEEE 802.3
Network Interface Ethernet 10/100Base-T
Protocol Modbus TCP
Max. Cable Length 100 meters
Number of socket 16
Analog Inputs 20mA: -20mA to +20mA
10V: -10V to + 10V 
Input Calibration mA: ±0.05 % f.s.
V: ±0.05 % f.s.
Linearity mA: ±0.1 %
V: ±0.1 %
Input Impedance V:≥ MΩ
mA: ∼22Ω
Thermal Drift ±0.01 % / °C f.s.
Auxiliary Supply (for each channel) 12 Vcc min @ 20 mA
Short Circuit Current Auxiliary Supply 28 mA
Sampling Time (4 Channels) 150 ms
Power Supply
Voltage 20 to 30 Vdc
Polarity Inversion Protection 60 Vdc max
Consumption (standby) 85 mA tip@ 24 Vdc
Consumption (standby) 100 mA max@ 20Vdc
Consumption (operative Auxiliary Supply @20mA) 150 mA max @ 24 Vdc
Consumption (operative Auxiliary Supply @20mA) 170 mA max @ 20 Vdc
Isolation Power Supply / Ethernet: 1500 Vac, 50 Hz, 1 Min.
Input / Power Supply: 1500 Vac, 50 Hz, 1 Min.
Input / Ethernet: 1500 Vac, 50 Hz, 1 Min.
Input / Input: 1500 Vac, 50 Hz, 1 Min.
Operating Temperature -10 to +60 °C
Storage Temperature -40 to +85 °C
Humidity (non condensing) 0 to 90 %
Maximum Altitude 2000 m
Connections Ethernet: RJ-45 (on terminals side)
Inputs: Removable screw-terminals
Power Supply: Removable screw-terminals
Housing Material Self-extinguishing plastic
IP Code IP20
Wiring Wires with diameter 0.8 to 2.1 mm² (AWG 14-18)
Tightening Torque 0.8 N m
Mounting EN-50022 DIN rail
EN-50035 DIN rail
Weight ∼ 160 g
EMC EN 61000-6-2
EN 61000-6-4
IOlog SS8015 Specifications

IOlog SS8015 User Guide