| | SIMATIC DP, EXPANSION MODULE EM 144 FOR ET 200X, IP66/67 2AI, +/- 20 MA, 12 BIT + SIGN, WITH CHANNEL DIAGNOSIS FOR 4-WIRE-TRANSDUCER |
| |
| Input current |
| from backplane bus 5 V DC, max. | 40 mA |
| Encoder supply |
| Output current |
| Short-circuit protection | Yes; Electronic |
| Power losses |
| Power loss, max. | 0.9 W |
| Analog inputs |
| Number of analog inputs | 2 |
| permissible input current for current input (destruction limit), max. | 40 mA |
| Input ranges |
| Current | Yes |
| Input ranges (rated values), currents |
| -20 to +20 mA | Yes |
| Input resistance (-20 to +20 mA) | 25 Ω |
| 4 to 20 mA | Yes |
| Input resistance (4 to 20 mA) | 25 Ω |
| Cable length |
| Cable length, shielded, max. | 30 m |
| Analog value creation |
| Analog value display (parameterizable) | Yes; S7 Format / S5 Format |
| Measurement principle | integrating |
| Integrations 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 |
| Encoder |
| Connection of signal encoders |
| for current measurement as 2-wire transducer | No |
| for current measurement as 4-wire transducer | Yes |
| Errors/accuracies |
| Operational limit in overall temperature range |
| Voltage, relative to input area | +/- 1,2 % |
| Current, relative to input area | +/- 1,2 % |
| Interrupts/diagnostics/status information |
| Alarms |
| Diagnostic alarm | Yes |
| Limit value alarm | Yes; upper limit, channel by channel/ lower limit channel by channel |
| Hardware interrupt | Yes |
| Diagnostic messages |
| Diagnostics | Yes |
| 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 |
| Galvanic isolation |
| Galvanic isolation analog inputs |
| Galvanic isolation analog inputs | No |
| Connection method |
| Inputs/outputs | 4/5-pin M12 circular connectors |
| Dimensions |
| Width | 87 mm; Width module 60 mm |
| Height | 110 mm |
| Depth | 55 mm |
| Weight |
| Weight, approx. | 250 g |
| Status | Feb 27, 2012 |
