162
Status Areas Section 6-2
Output Data
6-2 Status Areas
A Temperature Input Unit has two internal Status Areas. Bits are set with
respect to thresholds set by the user for each function. When any bit turns ON
in one of these Status Areas, the relevant Communications Unit Status Flag
turns ON. The Master Unit is notified of the status of Communications Unit
Status Flags. Information in I/O Unit Status Areas can be read using the Set-
ting Tool.
GRT1-TS2@
Warning Status Area A Temperature Input Unit’s Warning Status Area is configured of the following
16 bits. The Warning Status Area provides notification of minor errors in the
Unit.
Temperature Status Flags
(2 input bytes)
Used to allocate the bits for the Comparator Result Flags, Top/Valley Detection Timing
Flags, and Off-wire Detection Flags. The function of each bit is as follows:
• Comparator Result Flags
Allow control of the judgement results only, without allocating temperature values
• Top/Valley Detection Timing Flags
Used to time reading the values held as the top and valley values when both the top and
value values are allocated at the same time.
• Off-wire Detection Flags
Disconnections can be detected even when the temperature values are not allocated.
Temperature Data Normal
Display + Top/Valley Detec-
tion Timing Flags (6 input
bytes)
Allocation of the Temperature Data followed by the Top/Valley Detection Timing Flags.
Temperature Data 1/100 Dis-
play + Top/Valley Detection
Timing Flags (10 input bytes)
Input data Details
Output data Details
Hold Flags (1 output byte) Used with each of the hold functions (peak, bottom, top, and valley) to control the execu-
tion timing of hold functions from the Master.
Master
Communications Unit
Temperature Input Unit
If the Temperature Input Unit Status Flag
turns ON, the relevant Communications
Unit Status Flag will turn ON.
The threshold is exceeded
and the relevant bit turns ON.
The Setting Tool can be used
to read which bits are ON.
Notification to
Master
Bit Contents Description
0 Reserved. ---
1 Reserved. ---
2 Reserved. ---
3 Unit Maintenance Flag
OFF: Normal; ON: Error
(Over threshold or 87672
hours)
Monitors the power-ON time set as the
threshold for the Unit conduction time
monitoring function.
Also monitors whether 87672 hours (10
years) have elapsed.
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