8 x 4 to 20 mA out Ex i/Ex e

PROFIBUS Interface for zone 1/21
  • 8 channels
  • Outgoing isolator for 4 to 20 mA
  • Short-circuit-proof outputs
  • Ex ia/ib or non-intrinsically safe
  • 12 bit resolution
  • Galvanic isolation
  • LED display
  • Programmable address on front panel


In the Ex i or Ex e version, the MODEX 8 x 4 to 20 mA module can control various actuators depending on the model using 8 analogue short-circuit proof outputs. The controlled actuators can be switched off by an emergency stop via a second power supply connection on the module on terminals U- and U+. The module is connected to the process control system via the PROFIBUS-DP. Coding rotary switches are available for addressing the module. Diagnostics data indicating the status of the outputs with respect to a disconnection or short-circuit can also be transmitted in addition to the user data. This is also displayed on the module itself using LEDs.

Technical Data

Protection class Module: IP 66 EN/IEC 60529
Terminals: IP 20 EN/IEC 60529
Terminals with cover: IP 30 EN/IEC 60529
Structure Flameproof, clip-on enclosure for TH 35 rail
Dimensions see data sheet
Material High-quality thermoplastic
Storage temperature -40 °C to +60 °C
Weight 2.1 kg
Display LEDs on front panel
Status: ON, BF, SF, UB2
Outputs: 8 x double LED
LED yellow, output ok; LED red, short circuit
Voltage Supply voltage (L+, L-): DC 24 V (20 to 30 V)
Output power 1.8 W
5.7 W (Output)
Power dissipation 7.5 W (Module)

Manuals/Operating Instructions/Guides

Manuals/Operating Instructions/Guides

Data Sheets

Data Sheet – PROFIBUS Interface 8 x 4 to 20 mA out Ex i/Ex e