Digital Output and Units
The 21-bit digital output word presented to the DCX front panel
DB25 Digital Output connector may be controlled in decimal,
hexadecimal, or octal units or as a scaled function h(x) of the decimal
value entered in the Digital Out field.
The value sent to the Digital Output connector, in the unit selected,
is determined by the value entered into the Digital Out field but may
also be swept from the Sweep Panel.
Digital Output Data Format
The value and units entered in the Digital Out field will be
presented to the front panel Digital Output connector in either 2’s
complement or 8-4-2-1 BCD (binary coded decimal) format.
Scale Factor for Digital Output
When h(x) units are selected at the Digital Output control field,
APWIN software computes the actual transmitted value from the
relationship
output value = entry value* Scale (h)
where “entry value” is the decimal value entered into the Digital
Out numeric field and “Scale (h)” is the value entered in the Scale (h)
field just below the Digital Out control field. A new Scale value may be
entered or the present value edited from the keyboard, followed by
pressing the E key.
Panel Operation
Page 24 DCX-127 Multifunction Module User’s Guide
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