DIN rail I/O Modbus slave with 4 analog inputs

  • I/O interface – remotable on RS485 fieldbus
  • 4 analog input channels, 12 bits, isolated
  • 10V / 20 mA configurable input
  • Channels configurable separately from each other
  • High speed conversion
  • Inputs protected from voltage and current over-load
  • 12 bits channel with internal temperature sensor
  • RS485 serial port with high speed (1Mb/s max)
  • Modbus RTU protocol, configurable over RS485
  • CoDeSys libraries for configuration and use
  • PC tool for configuring and testing modules
  • Compact dimension on 17.5mm of DIN rail
Request information
Order online
CODE: 099-8105 Category: Modbus compact I/O modules


Interface module with 4 analog input channels configurable for 10V and 20mA. Each channel can be configured indipendently form others to measure a 10V voltage or a 20mA current.
The inputs have a resolution of 12bits and particularly low response times.
Easy integration in the “PLC Configuration” of CoDeSys tool in conjunction with the compact Web PLCs.
Ultra compact (only 17.5mm wide) realization with DIN rail mounting.

Technical Specification

Analog channels 4 single-ended input channels
 Isolation 1500Vac max (from bus and power supply)
 Resolution 12 bits
Voltage input 0-10V, impedance > 100kΩ
 Current input 0-20mA, 50Ω shunt resistor
 Acquisition time Programmable filter from 10ms to 1s
 Inputs reading +20% nominal value (word = 4914)
Inputs protection ±80V max (10V input), ±26V max (20mA input)
Accuracy Precision: ±0.05% FS. Linearity: ±0.025% FS
 Thermal drift 50 ppm/°C
 Temperature sensor Internal NTC -20°C ÷ 80°C, res. 0.1°C, ±0.5°C
 Fieldbus RS485 with EMI filter, thermal prot. / ESD 15kV
 Max nodes / Termin. 64 / insertable 120Ω load
 Baudrate 300b/s ÷ 1Mb/s (continuosly prog.)
 Protocol Modbus RTU, address 1 ÷ 247, parity N/O/E
 Function codes 3, 4, 6, 16, 17, 23, 100, 101, 102, 109, 110
Max performance Complete I/O update within 500μs (@ 1Mb/s)
 Power supply 24Vdc ±15% / 40mA max
 Operative temp. -20°C to 70°C
 Connections Plug-in screw terminals 28÷12AWG / 2.5mm2
 Box  ABS with 35mm DIN rail mount / IP20
 Max dimensions 113 x 17.5 x 119 mm (H x W x D)


EX04AIS brochure
Modules configuration manual
Modbus-Tool for configuration and test