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3
SPECIFICATIONS
3.2 Function List
3.2.3 Warning output function
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3.2.3 Warning output function
(1) Process alarm
(a) Warning occurrence
When the detected measured temperature value is higher than or equal to the
process alarm upper upper limit value, or lower than or equal to the process alarm
lower lower limit value (when the value enters the warning output range), a
warning occurs.
When a warning occurs, "1" is stored to the bit of the corresponding channel in the
Warning output flag (Process alarm) (Un\G47), Warning output signal (XD) turns
ON, and the "ALM" LED turns on.
(b) Warning clearance
After a warning occurs, when the temperature value is lower than the process
alarm upper lower limit value or higher than the process alarm lower upper limit
value (when the value returns to within the setting range), the warning is cleared.
When the warning is cleared, "0" is stored to the bit of the corresponding channel
in the Warning output flag (Process alarm) (Un\G47).
Warning output signal (XD) turns OFF only when the values for all channels return
to within the setting range.
Temperature
Warning output range section
Out of warning output range section
Included
Upper upper
limit value
Upper lower
limit value
CH1 measured
temperature value
Lower upper
limit value
CH2 measured
temperature value
Lower lower
limit value
Warning
occurence
Warning
occurence
Warning clearance
Warning
clearance
Warning
clearance
Time
CH1 Process alarm upper
limit value (Un\G47.b0)
CH1 Process alarm lower
limit value (Un\G47.b1)
CH2 Process alarm upper
limit value (Un\G47.b2)
Warning output signal (XD)
Warning occurence