| ***Spare part*** SIMATIC DP, Expansion module EM 144 for ET 200X, IP66/67 2 AI, +/-20 mA, 12 bit+sign diagnostics via channels for 4 wire measuring transducer |
| Input current |
| from supply voltage L+, max. | 40 mA |
| Encoder supply |
| Number of outputs | 2 |
| Short-circuit protection | Yes; Electronic |
| Output current |
| up to 40 °C, max. | 0.9 A |
| up to 55 °C, max. | 0.7 A |
| Power loss |
| Power loss, typ. | 0.9 W |
| Analog inputs |
| Number of analog inputs | 2 |
| permissible input current for current input (destruction limit), max. | 40 mA |
| Cycle time (all channels) max. | 134 / 160 |
| Input ranges |
| Current | Yes |
| Input ranges (rated values), currents |
| -20 mA to +20 mA | Yes |
| Input resistance (-20 mA to +20 mA) | 25 Ω |
| 4 mA to 20 mA | Yes |
| Input resistance (4 mA to 20 mA) | 25 Ω |
| Cable length |
| shielded, max. | 30 m |
| Analog value generation for the inputs |
| Analog value display | S7 Format / S5 Format |
| Measurement principle | integrating |
| Integration and conversion time/resolution per channel |
| Resolution with overrange (bit including sign), max. | 12 bit; + sign; overrange 17.5% |
| Integration time, parameterizable | Yes |
| Integration time (ms) | 16,7 / 20 ms |
| Interference voltage suppression for interference frequency f1 in Hz | 50 / 60 Hz |
| Encoder |
| Connection of signal encoders |
| for current measurement as 2-wire transducer | No |
| for current measurement as 4-wire transducer | Yes |
| Errors/accuracies |
| Linearity error (relative to input range), (+/-) | 0.05 % |
| Temperature error (relative to input range), (+/-) | 0.01 %/K |
| Crosstalk between the inputs, min. | 45 dB |
| Repeat accuracy in steady state at 25 °C (relative to input range), (+/-) | 0.05 % |
| Operational error limit in overall temperature range |
| Voltage, relative to input range, (+/-) | 1.2 % |
| Current, relative to input range, (+/-) | 1.2 % |
| Basic error limit (operational limit at 25 °C) |
| Voltage, relative to input range, (+/-) | 1 % |
| Current, relative to input range, (+/-) | 1 % |
| Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency |
| Series mode interference (peak value of interference < rated value of input range), min. | 40 dB |
| Common mode interference, min. | 60 dB |
| Interrupts/diagnostics/status information |
| Diagnostics function | Yes; Parameterizable |
| Alarms |
| Diagnostic alarm | Yes |
| Limit value alarm | Yes; upper limit, channel by channel/ lower limit channel by channel |
| Hardware interrupt | Yes |
| Diagnostic messages |
| Wire-break | Yes; channel by channel |
| Short-circuit | Yes; channel by channel |
| Overflow/underflow | Yes; channel by channel |
| Diagnostics indication LED |
| Group error SF (red) | Yes |
| Potential separation |
| Potential separation analog inputs |
| Potential separation analog inputs | No |
| Connection method |
| Design of electrical connection for the inputs and outputs | 4/5-pin M12 circular connectors |
| Dimensions |
| Width | 87 mm; Width module 60 mm |
| Height | 110 mm |
| Depth | 55 mm |
| Weights |
| Weight, approx. | 250 g |
| last modified: | 03/13/2019 |
