Supply voltage

• Load voltage L+
• Rated value (DC) : 24 V
• Reverse polarity protection : Yes

Input current

• from load voltage L+ (without load), max. : 20 mA
• from backplane bus 5 V DC, max. : 120 mA

Output voltage

• Power supply to the transmitters
  
  • present : Yes
  • Rated value (DC) : 24 V
  • short-circuit proof : Yes

Power losses

• Power loss, typ. : 1.5 W

Analog inputs

• Number of analog inputs : 8
• permissible input current for current input (destruction limit), max. : 40 mA

Input ranges

• Voltage : No
• Current : Yes
• Thermocouple : No
• Resistance thermometer : No
• Resistance : No

Input ranges (rated values), currents

• 0 to 20 mA : Yes
• Input resistance (0 to 20 mA) : 240 Ω
• Input resistance (-20 to +20 mA) : 240 Ω
• Input resistance (4 to 20 mA) : 240 Ω

Cable length

• Cable length, shielded, max. : 800 m

Analog value creation

• Measurement principle : Sigma Delta

Integrations and conversion time/ resolution per channel

• Resolution with overrange (bit including sign), max. : 16 bit
• Integration time, parameterizable : Yes
• Integration time, ms : 20 ms@50 Hz/16.6 ms@60 Hz/100 ms@100 Hz
• Basic conversion time, including integration time, ms : 65ms@50Hz / 55ms@60Hz / 305ms@100Hz

Encoder

• Connection of signal encoders
  
  • for current measurement as 2-wire transducer : Yes
  • for current measurement as 4-wire transducer : Yes

Errors/accuracies

• Linearity error (relative to input area) : +/- 0.01 %
• Temperature error (relative to input area) : +/- 0.001 %/K
• Crosstalk between the inputs, min. : 70 dB
• Repeat accuracy in settled status at 25 °C (relative to input area) : +/- 0.1 %

Operational limit in overall temperature range

• Current, relative to input area : +/- 0,15 %

Basic error limit (operational limit at 25 °C)

• Current, relative to input area : +/- 0,1 %

Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency

• Series mode interference (peak value of interference < rated value of input range), min. : 40 dB
• Common mode interference, min. : 100 dB

Isochronous mode

• Isochronous operation (application synchronized up to terminal) : No