Omega 1002 manual Signal Shielding

Page 22

Figure 2-6

R is a shunt resistor. A 250Ω shunt resistor converts 4-20mA to 1-5Vdc.

Signal Shielding

zThe signal shielding connections in Figure 2-3 to Figure 2-6 are all the same

zUse a single connection to frame ground (not A.GND or D.GND)

Vin

OME-PCI-1002 A.GND D.GND

Frame Ground

22

Image 22

Contents User’sGuide Servicing North America Table of Contents Software and Demo Program Diagnostic Program Introduction General DescriptionBlock Diagram X86 SystemFeatures Power Consumption SpecificationsAnalog Inputs 3 D/I and D/O 4 A/D Trigger MethodsProgrammable Timer/Counter Interrupt ChannelApplications OME-PCI-1002 series multifunction cardsProduct Check List Release NotesHardware Configuration Board LayoutJumper Setting A/D CalibrationSystem Block Diagram OME-PCI-1002 System Function BlockDaughter Boards OME-DB-8225 OME-DB-37OME-DB-16P Isolated Input Board OME-DB-16R Relay Board Analog Input Signal Connection Page Page Signal Shielding Jumper Settings Connectors Page How to Find the I/O Address O RegistersPage I/O Address Map Section 8254 Registers Status Register Clear Interrupt General Control Register Interrupt Source SelectionTrigger Method Selection Function Operation Digital I/O8254 Timer A/D triggerSymbol Name Minimum Maximum A/D Conversion CPUSuggested Settling Times 1 A/D Conversion Trigger Modes Software Trigger and Polling Techniques Page Page Software and Demo Program Power-ON Plug & Play Test Driver Plug & Play TestD I/O Test A/D TestWARRANTY/DISCLAIMER Temperature