Siemens Module 6ES7331-7PF00-0AB0 8AI 2/3/4 WIRE 50MS 40 PIN 400/60/ 50 Hz

Dimensions and weight

Dimensions W x H x D (mm)

40 x 125 x 117

Weight

ca. 272 g

Module-specific data

Supports parameter reassignment in RUN

Yes

Response of non-configured inputs

Return the process value which was valid before configuration

Supports isochronous mode

no

Number of inputs

8

Cable length

• shielded

max. 200 m

Voltages, currents, electrical potentials

Electrical isolation

• between channels and the backplane bus

yes

Maximum potential difference

• between inputs (CMV₎

35 V AC / 50 V DC,

Isolation test voltage

500 V DC

Current consumption

• from the backplane bus

max. 130 mA

Power loss of the module

typ. 0.6 W

Generation of analog values

Measuring principle

Integrating

Integration/conversion time/resolution (per channel)

• programmable

yes

• Integration time in ms

10

16.7

20

100

• Basic conversion time for each group with more than one active channel

35

55

65

305

• Channel conversion time for each group, only with active channel group 0 or 1

10

16.7

20

100

Channel integration time (1/f1) in ms

10

16.7

20

100

• Resolution (including overshoot range)

15 bits + sign

• Interference frequency suppression at interference frequency f1 in Hz

100

60

50

10

Basic execution time of the module in ms (all channels enabled)

140

220

260

1220

Interference frequency suppression and error limits

Interference frequency suppression at f = n (f1 1%), (f1 = interference frequency); n= 1, 2, ...

• Common mode interference (CMV _< 50 V)
• Series mode interference (peak value of interference < rated input range)

> 100 dB

> 90 dB

Crosstalk between inputs

> 100 dB

Operational limit (across entire temperature range, relative to measurement range end value in the selected input range)

C_MV = 0 / CMV _{= ±50 V}

• Voltage input
• Current input

±0.1% / ± 0.7%

±0.3% / ± 0.9%

Basic error limit (operational limit at 25 °C, relative to measurement range end value in the selected input range)

• Voltage input
• Current input

±0.05%

±0.05%

Temperature error (relative to input range)

± 0.005%/K

Linearity error (relative to input range)

±0.03%

Repeat accuracy (in transient state at 25 °C, relative to input range)

±0.025%

Status, interrupts, diagnostics

Interrupts

• Limit interrupt

• Diagnostic interrupt

programmable

Channels 0 and 2

programmable

Diagnostic functions

• Group error display
• Reading diagnostic information

programmable

red LED (SF)

supported

Encoder selection data

Input ranges (rated values) / input impedance

• Voltage

± 5 V

1 V to 5 V

± 10 V

/ 2 MΩ

/ 2 MΩ

/ 2 MΩ

• Current

0 mA to 20 mA

± 20 mA

4 mA to 20 mA

/ 250 Ω

/ 250 Ω

/ 250 Ω

Maximum voltage at voltage input (destruction limit)

max. 50 V, continuous

Maximum current at current input (destruction limit)

max. 32 mA

Wiring of the signal transmitters

using a 40­pin front connector

• for voltage measurement
• for current measurement
  • - as 2-wire transducer
  • - as 4-wire transducer

supported

possible, with separate transducer supply

supported