| | SIMATIC S7-300, ANALOG MODULE SM 334, OPTICALLY ISOLATED, FOR EXPANDED TEMPERATURE RANGE 4 AI/2 AO, 12 BIT 0-10 V, PT100 (CLIMAT RANGE -120 - 155 DEGR.) 20 PIN |
| |
| Supply voltage |
| Load voltage L+ |
| Rated value (DC) | 24 V |
| Input current |
| from load voltage L+ (without load), max. | 80 mA |
| from backplane bus 5 V DC, max. | 60 mA |
| Power losses |
| Power loss, typ. | 2 W |
| Analog inputs |
| Number of analog inputs | 4 |
| Number of analog inputs for voltage measurement | 2 |
| Number of analog inputs for resistance measurement | 4 |
| Cycle time (all channels) max. | 85 ms |
| Input ranges |
| Voltage | Yes |
| 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 thermometers |
| Pt 100 | Yes; only climatic range |
| Input ranges (rated values), resistors |
| 0 to 10000 ohms | Yes |
| Analog outputs |
| Number of analog outputs | 2 |
| Voltage output, short-circuit protection | Yes |
| Voltage output, short-circuit current, max. | 10 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 |
| Cable length, shielded, max. | 100 m |
| Analog value creation |
| Integrations and conversion time/ resolution per channel |
| Resolution with overrange (bit including sign), max. | 12 bit |
| Integration time, ms | 85 ms |
| Settling time |
| for resistive load | 0.8 ms |
| for capacitive load | 0.8 ms |
| Encoder |
| Connection of signal encoders |
| for resistance measurement with 2-conductor connection | Yes |
| for resistance measurement with 3-conductor connection | Yes |
| for resistance measurement with 4-conductor connection | Yes |
| Errors/accuracies |
| Operational limit in overall temperature range |
| Voltage, relative to input area | +/- 0,7 % |
| Impedance, relative to input area | +/- 3,5 % |
| Resistance-type thermometer, relative to input area | +/- 1 % |
| Voltage, relative to output area | +/- 1 % |
| Basic error limit (operational limit at 25 °C) |
| Voltage, relative to input area | +/- 0,5 % |
| Impedance, relative to input area | +/- 2,8 % |
| Resistance-type thermometer, relative to input area | +/- 0,8 % |
| Voltage, relative to output area | +/- 0,85 % |
| Galvanic isolation |
| Galvanic isolation analog inputs |
| between the channels and the backplane bus | Yes |
| Galvanic isolation analog outputs |
| between the channels and the backplane bus | Yes |
| Isolation |
| Isolation checked with | 500 V DC |
| Connection method |
| required front connector | 20-pin |
| Dimensions |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Weight |
| Weight, approx. | 200 g |
| Status | Mar 12, 2012 |
