Справочник Пользователя для Siemens 505-2557
Specifications
B-1
SIMATIC 505–2557 Installation and Operation Guide
Appendix B
Specifications
Table B-1
Specifications
Input Channels
16 RTD or Millivolt Inputs
(2 inputs per channel group)
(2 inputs per channel group)
RTD Types
10
W Cu (TCR=0.00427 W/W/_C)
100
W Pt (TCR=0.003850 W/W/_C)
European DIN 43760
120
120
W Ni (TCR=0.00672 W/W/_C)
2, 3, and 4 wire modes
RTD Excitation Current
250 micro Amp
Millivolt Input Range
0 to 100 mV
Millivolt Input Impedance
>10K
W @ 60 Hz
>1000M
W @ DC
Absolute Millivolt Accuracy
±
0.5% full scale or
±
500
mV
Lead Compensation
20
W per lead wire
Input Overrange Protection
30 VDC or VAC continuous
Measurement Ranges
10
W Cu
–100
_C to 260_C (–148_F to 500_F)
100
W Pt
–200
_C to 850_C (–328_F to 1562_F)
120
W Ni
–80
_C to 260_C (–112_F to 500_F)
ADC Resolution
16 Bits
Data Presentation
Measurement returned in 0.2 degree resolution as tem-
perature X10 or as an integer (0–32000).
(16WX mode). Data word includes sign bit and
overrange/underrange bit. Millivolts returned as milli-
volts X100. (16WX mode). 0.1 degree in
Advanced Mode.
perature X10 or as an integer (0–32000).
(16WX mode). Data word includes sign bit and
overrange/underrange bit. Millivolts returned as milli-
volts X100. (16WX mode). 0.1 degree in
Advanced Mode.
Measurement Units
Degrees C or F selectable by module
Digital Filtering Time Constant
80 mSec (16 WX mode)
Update Time (all 16 channels)
18 mSec no filtering
20 mSec digital filtering enabled
48 mSec advanced functions enabled
20 mSec digital filtering enabled
48 mSec advanced functions enabled
Repeatability
±
0.2
_C or _F all RTD types (16 WX mode)
±
0.1
_C or _F all RTD types (advanced mode)