| SIMATIC S7-300, Analog module SM 334, Non-isolated 4 AI/2 AO, 1x 20-pole, Removing and inserting possible with active backplane bus |
Supply voltage |
Load voltage L+ |
● Rated value (DC) | 24 V |
Input current |
from supply and load voltage L+ (without load), max. | 110 mA |
from backplane bus 5 V DC, max. | 55 mA |
Power loss |
Power loss, typ. | 3 W |
Analog inputs |
Number of analog inputs | 4 |
● For voltage measurement | 4 |
permissible input voltage for voltage input (destruction limit), max. | 20 V |
permissible input current for current input (destruction limit), max. | 40 mA |
Cycle time (all channels) max. | 5 ms |
Input ranges |
● Voltage | Yes |
● Current | Yes |
● Thermocouple | No |
● Resistance thermometer | No |
● Resistance | No |
Input ranges (rated values), voltages |
● 0 to +10 V | Yes |
— Input resistance (0 to 10 V) | 100 kΩ |
Input ranges (rated values), currents |
● 0 to 20 mA | Yes |
— Input resistance (0 to 20 mA) | 50 Ω |
Cable length |
● shielded, max. | 200 m |
Analog outputs |
Number of analog outputs | 2 |
Voltage output, short-circuit protection | Yes |
Voltage output, short-circuit current, max. | 11 mA |
Current output, no-load voltage, max. | 15 V |
Output ranges, voltage |
● 0 to 10 V | Yes |
Output ranges, current |
● 0 to 20 mA | Yes |
Load impedance (in rated range of output) |
● with voltage outputs, min. | 5 kΩ |
● with voltage outputs, capacitive load, max. | 1 µF |
● with current outputs, max. | 300 Ω |
● with current outputs, inductive load, max. | 1 mH |
Cable length |
● shielded, max. | 200 m |
Analog value generation for the inputs |
Integration and conversion time/resolution per channel |
● Resolution with overrange (bit including sign), max. | 8 bit |
● Integration time, parameterizable | No |
Analog value generation for the outputs |
Integration and conversion time/resolution per channel |
● Resolution with overrange (bit including sign), max. | 8 bit |
● Conversion time (per channel) | 500 µs |
Settling time |
● for resistive load | 0.3 ms |
● for capacitive load | 3 ms |
● for inductive load | 0.3 ms |
Encoder |
Connection of signal encoders |
● for voltage measurement | Yes |
● for current measurement as 2-wire transducer | No |
● for current measurement as 4-wire transducer | Yes |
Errors/accuracies |
Operational error limit in overall temperature range |
● Voltage, relative to input range, (+/-) | 0.9 % |
● Current, relative to input range, (+/-) | 0.8 % |
● Voltage, relative to output range, (+/-) | 0.6 % |
● Current, relative to output range, (+/-) | 1 % |
Basic error limit (operational limit at 25 °C) |
● Voltage, relative to input range, (+/-) | 0.7 % |
● Current, relative to input range, (+/-) | 0.6 % |
● Voltage, relative to output range, (+/-) | 0.5 % |
● Current, relative to output range, (+/-) | 0.5 % |
Interrupts/diagnostics/status information |
Alarms | No |
Diagnostics function | No |
Potential separation |
Potential separation analog inputs |
● between the channels and backplane bus | No |
Potential separation analog outputs |
● between the channels | No |
● between the channels and backplane bus | No |
● between the channels and the power supply of the electronics | 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. | 285 g |
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