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The following analog electronics modules can be used for connecting actuators/sensors in the context of SIMATIC PCS 7:

Analog input modules

EM 4 AI U High Feature

• 4 inputs for voltage measurements
• Input ranges:
  • В± 10В V, resolution 15 bit + sign
  • В± 5В V, resolution 15 bit + sign
  • 0 to 10В V, resolution 15В bit
  • 1 to 5В V, resolution 15В bit
• Electrically isolated from load voltage 2L+
• Diagnostics "Short-circuit of sensor supply to M" per module
• Diagnostics "Short-circuit, open-circuit" per channel (depending on measuring range)
• Hardware interrupt with limit violation on channelВ 0
• Permissible common mode voltage 5 VВ AC pp

EM 4 AI I High Feature

• 4 inputs for current measurements
• Input ranges:
  • В± 20В mA, resolution 15 bit + sign
  • 0 to 20В mA, resolution 15В bit
  • 4 to 20В mA, resolution 15В bit
• Two-wire and four-wire transmitters can be connected
• Electrically isolated from load voltage 2L+
• Diagnostics "Short-circuit of sensor supply to M" per module
• Diagnostics "Short-circuit, open-circuit" per channel (depending on measuring range)
• Hardware interrupt with limit violation on channelВ 0
• Permissible common mode voltage 5В VВ AC pp

EM 4 AI RTD High Feature

• 4 inputs for isolated (floating) resistance measurements or
  resistance thermometers with 2-, 3- and 4-wire connections
• Input ranges:
  • Resistance measurement: 150В О©; 300В О©; 600В О©; 3000В О©; resolution 15В bit
  • Resistance thermometer: Pt100; Ni100; Ni120; Pt200; Ni200; Pt500; Ni500; Pt1000; Ni1000; resolution 15В bit +В sign
• Automatic compensation of line resistances with 3-wire and 4-wire connections
• Parameterizable temperature coefficient with resistance-type sensors
• Electrically isolated from load voltage supply 1L+ and 2L+
• Linearization of sensor characteristics
• Diagnostics "Open-circuit" per channel (terminals 1 and 3 are monitored for open-circuit)
• Permissible common mode voltage 10 VВ AC pp

EM 4 AI TC High Feature

• 4 inputs for isolated/non-isolated thermocouples or voltage measurement; resolution 15 bits + sign
• Input ranges:
  • Voltage measurement В± 80 mV
  • Thermocouples: Type B, E, J, K, L, N, R, S, T
• Inputs are isolated from the encoder voltage supply 1L+ and load voltage supply 2L+
• Linearization of the voltage characteristic (conversion of the thermoelectric voltage to a temperature value)
• Smoothing
• Interference frequency suppression
• Various options to compensate for the reference temperature
• Overflow and underflow diagnostics

Analog output modules

EM 4 AO U High Feature

• 4 outputs for voltage output
• Output ranges:
  • В± 10В V, resolution 15В bits + sign
  • 1 to 5В V, resolution 14В bit
  • 0 to 10В V, resolution 15В bit
• Electrically isolated from sensor supply voltageВ 1L+
• Diagnostics "Short-circuit of sensor supply to M" per module
• Diagnostics "Open-circuit in outputs" per channel
• Substitute value output

EM 4 AO I High Feature

• 4 outputs for current output
• Output ranges:
  • В± 20В mA, resolution 15 bit + sign
  • 4 to 20В mA, resolution 14В bit
  • 0 to 20В mA, resolution 15В bit
• Electrically isolated from sensor supply voltageВ 1L+
• Diagnostics "Short-circuit of sensor supply to M" per module
• Diagnostics "Open-circuit" per channel
• Substitute value output