28
Operation Theory
4.1
AD Conversion and Preloaded Trigger
4.1.1
ADC
The PCI-8136 provides 6 differential ADC channels. Each channel
consists of two inputs. One for a (+) signal and the other for a (-)
signal. The input signal may have a voltage range from –10 ~
+10V or current range from –20mA ~ 20mA. The following figure
show the A (voltage or current) to D (value read) converting table.
The zero voltage or current is at value 2000.
Related functions:
_8136_A_Initial
(): please refer to section 5.5
_8136_A_Read_Value
(),
_8136_A_Read_Volt
(): please refer
to section 5.5
4.1.2
Voltage Compare
The voltage compare function allows users to set a compare value
by software function. When one ADC signal reaches the pre-set
value, an interrupt will be generated for corresponding channel.
Relative functions:
_8136_A_Set_Compare_Value
(),
_8136_A_Set_Compare_Volt
(),
_8136_S_Set_Int_Factor
() : please refer to section 5,7
Summary of Contents for PCI-8136
Page 4: ......
Page 20: ...12 Installation...
Page 32: ...24 Signal Connections Figure 3 7 Connect to open collector output...
Page 48: ...40 Operation Theory...
Page 72: ...64 Function Library...
Page 78: ...70 Appendix 12 A save finish window will appear 13 Press Exit button to exit utility...
Page 80: ...72 Appendix Channel 2 Channel 3...
Page 81: ...Appendix 73 Channel 4 Channel 5...
Page 82: ...74 Appendix...
