Модули ввода-вывода SM 1234

General information

Product type designation

SM 1234, AI 4x13 bit/AQ 2x14 bit

Supply voltage

Rated value (DC)

24 V

Input current

Current consumption, typ.

60 mA

from backplane bus 5 V DC, typ.

80 mA

Power loss

Power loss, typ.

2 W

Analog inputs

Number of analog inputs

4; Current or voltage differential inputs

permissible input voltage for voltage input (destruction limit), max.

35 V

permissible input current for current input (destruction limit), max.

40 mA

Cycle time (all channels) max.

625 µs

Input ranges

• ● Voltage

Yes; ±10V, ±5V, ±2.5V

• ● Current

Yes; 4 to 20 mA, 0 to 20 mA

Input ranges (rated values), voltages

• ● -10 V to +10 V

Yes

• — Input resistance (-10 V to +10 V)

≥9 MOhm

• ● -2.5 V to +2.5 V

Yes

• — Input resistance (-2.5 V to +2.5 V)

≥9 MOhm

• ● -5 V to +5 V

Yes

• — Input resistance (-5 V to +5 V)

≥9 MOhm

Input ranges (rated values), currents

• ● 0 to 20 mA

Yes

• — Input resistance (0 to 20 mA)

280 Ω

• ● 4 mA to 20 mA

Yes

Analog outputs

Number of analog outputs

2; Current or voltage

Output ranges, voltage

• ● -10 V to +10 V

Yes

Output ranges, current

• ● 0 to 20 mA

Yes

• ● 4 mA to 20 mA

Yes

Load impedance (in rated range of output)

• ● with voltage outputs, min.

1 000 Ω

• ● with current outputs, max.

600 Ω

Cable length

• ● shielded, max.

100 m; shielded, twisted pair

Analog value generation for the inputs

Measurement principle

Differential

Integration and conversion time/resolution per channel

• ● Resolution with overrange (bit including sign), max.

12 bit; + sign

• ● Integration time, parameterizable

Yes

• ● Interference voltage suppression for interference frequency f1 in Hz

40 dB, DC to 60 V for interference frequency 50 / 60 Hz

Smoothing of measured values

• ● parameterizable

Yes

• ● Step: None

Yes

• ● Step: low

Yes

• ● Step: Medium

Yes

• ● Step: High

Yes

Analog value generation for the outputs

Integration and conversion time/resolution per channel

• ● Resolution with overrange (bit including sign), max.

14 bit; Voltage: 14 bit; Current : 13 bit

Errors/accuracies

Temperature error (relative to input range), (+/-)

25 °C ±0.1%, to 55 °C ±0.2% total measurement range

Temperature error (relative to output range), (+/-)

25 °C ±0.3%, to 55 °C ±0.6% total measurement range

Basic error limit (operational limit at 25 °C)

• ● Voltage, relative to input range, (+/-)

0.1 %

• ● Current, relative to input range, (+/-)

0.1 %

• ● Voltage, relative to output range, (+/-)

0.3 %

• ● Current, relative to output range, (+/-)

0.3 %

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

• ● Common mode voltage, max.

12 V

Interrupts/diagnostics/status information

Alarms

Yes

Diagnostics function

Yes

Alarms

• ● Diagnostic alarm

Yes

Diagnoses

• ● Monitoring the supply voltage

Yes

• ● Wire break

Yes

• ● Short-circuit

Yes

Diagnostics indication LED

• ● for status of the inputs

Yes

• ● for status of the outputs

Yes

• ● for maintenance

Yes

Potential separation

Potential separation analog outputs

• ● between the channels and the power supply of the electronics

No

Degree and class of protection

IP degree of protection

IP20

Standards, approvals, certificates

CE mark

Yes

CSA approval

Yes

UL approval

Yes

cULus

Yes

FM approval

Yes

RCM (formerly C-TICK)

Yes

KC approval

Yes

Marine approval

Yes

Ecological footprint

• ● environmental product declaration

Yes

Global warming potential

• — global warming potential, (total) [CO2 eq]

43.1 kg

• — global warming potential, (during production) [CO2 eq]

7.62 kg

• — global warming potential, (during operation) [CO2 eq]

36 kg

• — global warming potential, (after end of life cycle) [CO2 eq]

-0.544 kg

Ambient conditions

Free fall

• ● Fall height, max.

0.3 m; five times, in product package

Ambient temperature during operation

• ● min.

-20 °C

• ● max.

60 °C

• ● horizontal installation, min.

-20 °C

• ● horizontal installation, max.

60 °C

• ● vertical installation, min.

-20 °C

• ● vertical installation, max.

50 °C

Ambient temperature during storage/transportation

• ● min.

-40 °C

• ● max.

70 °C

Air pressure acc. to IEC 60068-2-13

• ● Operation, min.

795 hPa

• ● Operation, max.

1 080 hPa

• ● Storage/transport, min.

660 hPa

• ● Storage/transport, max.

1 080 hPa

Relative humidity

• ● Operation at 25 ℃ without condensation, max.

95 %

Pollutant concentrations

• ● SO2 at RH < 60% without condensation

S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free

Connection method

required front connector

Yes

Mechanics/material

Enclosure material (front)

• ● Plastic

Yes

Dimensions

Width

45 mm

Height

100 mm

Depth

75 mm

Weights

Weight, approx.

220 g