Omron DRT1 Series - Page 181

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Temperature Input Terminals Section 4-9
The following diagram shows how temperature data is divided and the data
configuration.
Leftmost/rightmost bit: Determines whether leftmost or rightmost digits are
displayed.
Temperature unit bit: Determines whether temperature is expressed in
°C
or
°F.
Broken wire bit: Turns ON (1) to notify of broken wire. At that time the
data in the leftmost three digits is “7FF” and the data
in the rightmost three digits is “FFF.”
The three leftmost digits and three rightmost digits, each comprising one word
of data, are alternately provided to the Master every 125 ms as shown in the
following diagram.
Temperature data (Actual temperature x 100, in binary data)
Notification format for leftmost 3 digits
Notification format for rightmost 3 digits
Bit
Bit
Left/right
0: Left
1: Right
Temp.
unit
0: C°
1: F°
Broken
wire
0: OK
1: Error
Not used.
0 (Fixed)
Sign/determination area
Right/left
0: Left
1: Right
Temp.
unit
0: C°
1: F°
Broken
wire
0: OK
1: Error
Not used.
0 (Fixed)
Data area
Sign/determination area Data area
125 mms 125 mms 125 mms
Leftmost 3 digits Rightmost 3 digits Leftmost 3 digits
Data refresh Data refresh
Time