西门子SM335快速模拟量模块

Module-specific data

Number of inputs

4

Number of outputs

4

Cable length, shielded

200 m

With wire-break monitoring in range 0 V to 10 V

30 m

Voltages, currents, potentials

Rated load voltage

24 V DC

Polarity reversal protection

yes

Galvanic isolation

yes

Permissible potential difference

? between inputs (UCM)

3 V

? between input (M terminal) and central grounding point

75 V DC

? Insulation

tested at 500 V DC

Current consumption

? from S7-300 backplane bus, max.

75 mA

? from L+, max.

150 mA

Power losses, max.

3.6 W

Status, interrupts, diagnostics

Interrupts

? Limit value interrupt

no

? Cycle end interrupt

yes, parameterizable

? Diagnostics interrupt

yes, parameterizable

Diagnostic functions

? Fault display for grouped fault

yes, red LED

? Diagnostic information can be read out

yes

Analog value generation for inputs

Measuring principle

successive approximation

Conversion time per channel

200 μs

? Basic conversion time for 4 channels, max.

1 ms

Resolution

? Bipolar

13 bits + sign

? Unipolar

14 bits

Analog inputs

Interference between inputs

? at 50 Hz

65 dB

? at 60 Hz

65 dB

Operational limits (over entire temperature range, referred to input range)

? with voltage measurement

± 0.15 % (with 14-bit resolution)

? with current measurement

0.25 %

Basic error limit (operational limits at 25 °C, referred to input range)

0.13 % (with 14-bit resolution)

Temperature error (referred to input range)

± 0.1 % (with 14-bit resolution)

Linearity error (referred to input range)

± 0.015 %

Repeatability (under steady-state conditions, at 25 °C, referred to input range)

± 0.05 %

Encoder selection data

Input range (rated values)/input resistance

? Voltage

± 1 V; ± 10 V; ± 2.5 V; 0 V to 2 V; 0 V to 10 V: 10 MΩ

? Current

± 10 mA; 0 mA to 20 mA; 4 mA to 20 mA: 100 Ω

Permissible input voltage for voltage input (destruction limit)

± 30 V

Permissible input current for current input (destruction limit)

25 mA

Connection of signal encoder

? for voltage measurement

possible

? for current measurement

- as 2-wire transducer

not possible

- as 4-wire transducer

possible

? for resistance measurement

not possible

Output for supplying the transducer (short-circuit proof)

10 V/25 mA

Data for encoder supply output

Rated voltage

10 V

Output current, max.

25 mA

Short-circuit proof

yes

Operating limits (over entire temperature range)

0.2 %

Temperature error

0.002 %/K

Basic error for rated voltage

0.1 %

Outputs

Resolution(including overcontrol range)

? ± 10 V

11 bits + sign

? from 0 V to 10 V

12 bits

Conversion time per channel, max.

800 μs

Settling time

? for resistive load

< 0.1 ms

? for capacitive load

< 3.3 ms

? for inductive load

< 0.5 ms

Interference between outputs

40 dB

Substitute values can be switched in

yes

Operational limits (over entire temperature range, referred to output range)

0.5 %

Basic error limit (operational limits at 25 °C, referred to output range)

0.2 %

Linearity error (referred to output range)

± 0.05 %

Repeatability (under steady-state conditions, at 25 °C, referred to output range)

± 0.05 %

Output ripple (referred to output range)

± 0.05 %

Actuator selection data

Input ranges (rated values)

± 10 V and 0 V to 10 V (switchover)

Load impedance

? for voltage outputs, min.

3 kΩ

? for capacitive load, max.

1 μF

? for inductive load, max.

1 mH

Voltage output

? Short-circuit proof

yes

? Short-circuit current, max.

8 mA

Connection of the actuators for voltage output

? as 2-wire connection

possible

? as 4-wire connection

not possible

Dimensions and weight

Dimensions (w x h x d)

40 mm x 125 mm x 120 mm

Weight, approx.

300 g