The electronics modules of the SIMATIC ET 200iSP distributed I/O‑system equipped with safety functions can be used together with the safety-related automation systems (controllers) for the implementation of safety applications. The input modules record the process signals, evaluate them, and prepare them for addional processing by the automation system. The output modules convert the safety-related signals output by the automation systems so that they are suitable for controlling the connected actuators.

F digital input modules

• 8 F-DI Ex NAMUR
  Safety-related digital input module for evaluating the signals from IEC 60947‑5‑6/NAMUR sensors and connected/non-connected mechanical contacts in hazardous and non-hazardous areas
  • SIL3/Cat.3/PLe with 8 inputs (1-channel/1oo1 evaluation) or 4 inputs (2‑channel/1oo2 evaluation)
  • 8 short-circuit-proof sensor supplies (8 V DC) for 1 channel each
  • Inputs and sensor supplies electrically isolated from power bus and backplane bus
  • Diagnostics evaluation (deactivated for non-connected mechanical contacts)
  • Internal diagnostics buffer
  • Programmable diagnostics interrupt
  • Supports time stamping
  • Channel-selective passivation
  • Firmware update using HW Config possible
  • Exclusively for safety mode
  • LED displays for safety mode, group errors and channel status/fault

F digital output modules

• 4 F-DO Ex DC 17.4 V/40 mA
  Safety-related digital output module for controlling actuators in hazardous and non-hazardous areas, e.g. solenoid valves, DC current relays or indicator lamps
  • SIL3/Cat.3/PLe with 4 outputs, P/P-switching
  • Electrical isolation from power bus and backplane bus
  • Rated load voltage 17.4 V DC
  • Max. output current 40 mA
  • Performance enhancement through parallel connection of two digital outputs for one actuator
  • Short-circuit, overload and wire-break monitoring
  • Configurable diagnostics
  • Internal diagnostics buffer
  • Programmable diagnostics interrupt
  • Channel-selective passivation
  • Firmware update using HW Config possible
  • Exclusively for safety mode
  • LED displays for safety mode, group errors and channel status/fault

F analog input modules

• 4 F-AI Ex HART (0 ... 20 mA or 4 ... 20 mA)
  Safety-related digital input module for evaluating the signals from current sensors in hazardous and non-hazardous areas, e.g. 2-wire transmitters and HART field devices
  • SIL3/Cat.3/PLe with 4 inputs of one module (1‑channel/1oo1 evaluation) or 4 inputs of two modules (2‑channel/1oo2 evaluation)
  • Measuring ranges: 0 ... 20 mA or 4 ... 20 mA
  • Resolution 15 bit + sign
  • HART communication in measuring range 4 ... 20 mA
  • 4 short-circuit-proof sensor supplies (min. 12 V DC; max. 26 V DC) for 1 channel each
  • Inputs and sensor supplies electrically isolated from backplane bus
  • Configurable diagnostics
  • Programmable diagnostics interrupt
  • Internal diagnostics buffer
  • Firmware update using HW Config possible
  • Exclusively for safety mode
  • LED displays for safety mode, group errors, channel faults and HART status per channel