For Siemens PLC S7 300

Supply voltage

Load voltage L+

● Rated value (DC)

24 V

● Reverse polarity protection

Yes

Input current

from supply and load voltage L+ (without load), max.

80 mA

from backplane bus 5 V DC, max.

60 mA

Power loss

Power loss, typ.

2 W

Analog inputs

Number of analog inputs

4

● For voltage measurement

2

● For resistance measurement

4

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

20 V; continuous; 75 V for max. 1 s (mark to space ratio 1:20)

Cycle time (all channels) max.

85 ms

Input ranges

● Voltage

Yes

● Current

No

● Thermocouple

No

● Resistance thermometer

Yes

● Resistance

Yes

Input ranges (rated values), voltages

● 0 to +10 V

Yes

● Input resistance (0 to 10 V)

100 kΩ

Input ranges (rated values), resistance thermometer

● Pt 100

Yes; only climatic range

Input ranges (rated values), resistors

● 0 to 10000 ohms

Yes

Characteristic linearization

● parameterizable

Yes

— for resistance thermometer

Pt100 (climate)

Cable length

● shielded, max.

100 m

Analog outputs

Number of analog outputs

2

Voltage output, short-circuit protection

Yes

Voltage output, short-circuit current, max.

30 mA

Output ranges, voltage

● 0 to 10 V

Yes

Load impedance (in rated range of output)

● with voltage outputs, min.

2.5 kΩ

● with voltage outputs, capacitive load, max.

1 µF

Cable length

● shielded, max.

100 m

Analog value generation for the inputs

Integration and conversion time/resolution per channel

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

12 bit

● Integration time (ms)

16,67 / 20 ms

Analog value generation for the outputs

Integration and conversion time/resolution per channel

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

12 bit

Settling time

● for resistive load

0.8 ms

● for capacitive load

0.8 ms

Encoder

Connection of signal encoders

● for resistance measurement with two-wire connection

Yes

● for resistance measurement with three-wire connection

Yes

● for resistance measurement with four-wire connection

Yes

Errors/accuracies

Operational error limit in overall temperature range

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

0.7 %; 0 to 10V

● Resistance, relative to input range, (+/-)

3.5 %; 10 kOhm

● Resistance thermometer, relative to input range, (+/-)

1 %

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

1 %

Basic error limit (operational limit at 25 °C)

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

0.5 %; 0 to 10V

● Resistance, relative to input range, (+/-)

2.8 %; 10 kOhm

● Resistance thermometer, relative to input range, (+/-)

0.8 %

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

0.85 %

Interrupts/diagnostics/status information

Alarms

No

Diagnostics function

No

Potential separation

Potential separation analog inputs

● between the channels and backplane bus

Yes

Potential separation analog outputs

● between the channels and backplane bus

Yes

Isolation

Isolation tested with

500 V DC

Connection method

required front connector

20-pin

Dimensions

Width

40 mm

Height

125 mm

Depth

117 mm

Weights

Weight, approx.

200 g

last modified:

10/31/2018