SBC PCD2.M5 Series - Page 193

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Analogue combined input/output modules
Input/output (I/O) modules
6-83
6
Filters
● Inputs
 Therearetwofactorsusedtolterthecapturedvalues:
○ Thebasichardwarelterwithatimeconstantof2ms.Thislter
attenuates the input signal by 6 dB per order of magnitude at a
switching frequency of 80 Hz.
○ The software also has an effect. This results in a delay to the captured
  valueof2mswithanotchlterpropertyat500Hz,wherenosoftware-
  basedlterwith50Hz/60Hzhasbeenselected.
 Wherea50Hz(60Hz)lterisused,thefrequencyofthenotchlteris50Hz
 (60Hz);inthiscase,thedelayisalso2ms.
● Outputs
 Onlythehardware-basedlerwithatimeconstantof1msisactive.
Technical data
Inputs
General:
Resolution: 14 bit
Measurement type: differential
Number of channels: 4
Galvanic separation of the PCD: yes, 500 V
Galvanic separation of external supply: yes, 500 V
Galvanic separation between channels: no
Type of connections: two cables per channel
Congurationofoperatingmode: using DIP switches
Accuracy at 25 °C: ± 0.2% max.
Repeat accuracy: ± 0.05% max.
Temperaturedrift(0…55°C)max.: ± 70 ppm/°C
Overvoltage protection: ± 50 V min.
Overcurrent protection: ± 35 mA min.
Common mode max. voltage: ± 50 V min.
Common mode rejection: 70 dB min.
Filter:
Timeconstantforhardwarelter: 2 ms
Attenuationofsoftware-based50Hzlter: 40 dB min. between 49.5 and 50.5 Hz
Attenuationofsoftware-based60Hzlter: 40 dB min. between 59.5 and 60.5 Hz
Voltage mode:
Resolution range 0 … 10 V mode: 14Bit;0.61mVperLSB
Current mode:
Current shunt resistance: 125 Ω
Resolution range 0 … 20 mA: 14Bit;1.22µA per LSB
Resolution range 4 … 20 mA: 13.7Bit;1.22µA per LSB
Temperature / resistance mode:
ResolutionforPt1000;range-50 … 400 °C 0.1 °C
ResolutionforPt500;range-50 … 400 °C 0.2 °C
ResolutionforNi1000;range-60 … 200 °C 0.1 °C
Resolutionforresistor;range0 … 2500 Ω 0,2 Ω
Shunt capacity for temp sensor / resistor: 2.5 mW max.