I/O CARD

Look at picture of the I/O card.

This COMMANDER I/O function card supplies 2 analog ("setpoint") output signals from a companion Base/Expansion cardfile assembly.

These independent outputs are of a constant current type. Their basic output is a linear 0 to 20 milliamperes, with a program option to produce an "offset" 4 to 20 milliamperes. These signals can be modified and/or converted to desired voltages with proper termination components.

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SPECIFICATIONS

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Functional

• Outputs per card: 2 (unipolar current)
• Commons per card: 2
• Converter method: 12bit ladder
• True constant current output (0-20mA)
• Other current and or voltage signals possible, with proper conditioning components
• Conversion accuracy: ±0.15% of span, long term
• Conversion resolution: 1 part in 4000
• Common mode rejection: >80dB
• Common mode voltage: ±36V peak
• Max loop resistance: 700 for 24V supply, or 300 for 12V supply
• Firmware span calibration by point, stored in Base assembly's non-volatile EEPROM
• Terminal types: Removable terminal or IDC (ribbon cable) header as specified

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Operating power

• 10-14VDC input power, from Base assembly
• Typical logic current drain <5mA
• Output loops normally derive their operating power from independent instrument supply
  (requires 20mA per output)

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Transient protection

• Meets or exceeds IEEE C37.90A-1987
  surge withstanding specification

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Operating environment (electronics)

• Standard -10 to +70°C temperature
• 0 to 95% relative humidity (non-condensing)

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COMMON OUTPUT VALUES

The typical values of analog current termination resistors verses the type of analog input signal are:

SIGNAL       R-VAL        ADD'L.       

                          SPECS        



0 to 5V      250          MF 0.1%      

                          1/2W         



1 to 5V      250          MF 0.1%      

                          1/2W         



0 to 10V     500          MF 0.1%      

                          1/2W         



2 to 10V     500          MF 0.1%      

                          1/2W         

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ADDITIONAL INFORMATION

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Terminals & Connectors

Look at picture of the I/O card.

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ORDERING INFORMATION

200106: I/O CARD, 2 POINT AO

This assembly is provided in the following versions (XXX designation of part number).

• -000: I/O card, pull-apart termination
• -100: I/O card, IDC-type termination

200106-000 $293

200106-100 $285

MATING TERMINAL. Pull-apart Terminal Strip, for version 000.
200128-008 $22

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