SBC PCD2.W745, Руководство пользователя

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Saia-Burgess Controls AG
Manual for PCD2.W745 and PCD3.W745 │ Document 26-796 E NG06 │ 2018-10-12
Programming
Programming with PCD Classic
3
3-4
3.1.2 Programming with FBs
To use the PCDx.W745 in Saia PCD
®
Classic systems, FBs are delivered in the
Saia PG5
®
package.
FB Init
The Init FB has the following parameter structure:
FB Init
Parameter Type Description
K 1…16 [K] input module Number according to file D2W745_B.mba
TC_K* [K] input Sensor type CH0
CJCint* [K] input Configuration / connection CH0
TC_K* [K] input Sensor type CH1
CJCint* [K] input Configuration / connection CH1
TC_K* [K] input Sensor type CH2
CJCint* [K] input Configuration / connection CH2
TC_K* [K] input Sensor type CH3
CJCint* [K] input Configuration / connection CH3
Celsius* [K] input Measurement unit
InitError [F] output Initialization error indicator
WrongConfig [F] output No or wrong configuration indicator
NoCalibration [F] output Internal module calibration check
*
See table below for predefined configuration codes.
Predefined configuration codes for the supported temperature sensors:
Configuration / Connection
CJCint CJCext R2wire R3wire R4wire Voltage NotUsed
Input range
TC_K
 
TC_J
 
Pt100
  
Ni100
  
Pt1000
  
Ni1000
  
U75mV

R600
  
R5000
  
NotUsed

● When CJCext is configured, the temperature of the external reference junction
is measured using channel 0. Therefore, channel 0 can’t be configured for
CJCext.
● If a wrong configuration is sent to the module, the NoConfig indicator becomes
high and the module does not go in data acquisition mode.
Predefined configuration codesfor the measurement unit:
Celsius Temperature value in 1/10°C
The module converts the measured value
in the selected measurement unit.
Fahrenheit Temperature value in 1/10°F
Kelvin Temperature value in 1/10 K