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 communicati on s with the module. Data can eith er be held at its present values or
defaulted to zero.
You can accept DEFAULT: ZE RO wi th the F4 (enter) key, or press F3 (t oggle) 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 th e 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