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5-66 Field Control™ Genius® Bus Interface Unit User’s Manual
–
October 1999 GFK-0825F
5
Assign Data Defaults
For data types AI and I, you can determine what the BIU should do with the module's data if the
BIU loses communications with the module. Data can either be held at its present values or
defaulted to zero.
You can accept DEFAULT: ZERO with the F4 (enter) key, or press F3 (toggle) then F4 (enter) to
change to DEFAULT: HOLD and save it.
I data is diagnostic data sent by the module.
S:4 Module-> %I
DEFAULT:ZERO
< > tgl entr
AI data is RTD input data sent by the module.
S:4 Module-> %AI
DEFAULT:ZERO
< > tgl entr
For command data going to the module (data types Q and AQ) which is included within the BIU's
I/O map, you can determine what data the BIU will send to the module if the BIU loses
communications with the network.
S:4 Network-> %Q
DEFAULT:ZERO
< > tgl entr
Line Frequency
Next, set the line frequency for the module. Select 50 or 60 Hz.
S:1 LINE FREQ
60 HZ
< > tgl entr