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| Appendix B | |
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| Specifications | |
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| Table | |||
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Input Channels |
| 16 RTD or Millivolt Inputs | ||
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| (2 inputs per channel group) | ||
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RTD Types |
| 10W Cu (TCR=0.00427 W/W/_C) | ||
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| 100W Pt (TCR=0.003850 W/W/_C) | ||
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| European DIN 43760 | ||
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| 120W Ni (TCR=0.00672 W/W/_C) | ||
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| 2, 3, and 4 wire modes | ||
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RTD Excitation Current |
| 250 micro Amp |
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Millivolt Input Range |
| 0 to 100 mV |
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Millivolt Input Impedance |
| >10KW @ 60 Hz | ||
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| >1000MW @ DC | ||
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Absolute Millivolt Accuracy |
| ±0.5% full scale or ±500 mV | ||
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Lead Compensation |
| 20W per lead wire | ||
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Input Overrange Protection |
| 30 VDC or VAC continuous | ||
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Measurement Ranges |
| 10W Cu | ±100_C to 260_C (±148_F to 500_F) | |
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| 100W Pt | ±200_C to 850_C (±328_F to 1562_F) | |
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| 120W Ni | ±80_C to 260_C (±112_F to 500_F) | |
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ADC Resolution |
| 16 Bits |
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Data Presentation |
| Measurement returned in 0.2 degree resolution as tem- | ||
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| perature X10 or as an integer (0±32000). | ||
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| (16WX mode). Data word includes sign bit and | ||
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| overrange/underrange bit. Millivolts returned as milli- | ||
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| volts X100. (16WX mode). 0.1 degree in | ||
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| Advanced Mode. | ||
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Measurement Units |
| Degrees C or F selectable by module | ||
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Digital Filtering Time Constant |
| 80 mSec (16 WX mode) | ||
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Update Time (all 16 channels) |
| 18 mSec no filtering | ||
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| 20 mSec digital filtering enabled | ||
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| 48 mSec advanced functions enabled | ||
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Repeatability |
| ±0.2_C or _F all RTD types (16 WX mode) | ||
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| ±0.1_C or _F all RTD types (advanced mode) | ||
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SIMATIC 505±2557 Installation and Operation Guide | Specifications |