APPX
Appendix 2 I/O Signals
117
A
■Rate alarm
• 'Alert output signal' (X8) turns on when the change rate of the digital output values of the A/D conversion enabled channels
exceed the ranges set for 'CH1 Rate alarm upper limit value' (Un\G524) to 'CH1 Rate alarm lower limit value' (Un\G526)
after 'CH1 Alert output setting (rate alarm)' (Un\G513) is enabled. The ALM LED also turns on along with the on of the
signal.
• Alert output signal (X8) turns off when the change rate of the digital output values falls within the setting range for all the A/
D conversion enabled channels. The ALM LED also turns off along with the off of the signal.
ON
OFF
00
'Alert output signal' (X8)
'Alert output flag (Process alarm upper limit)' (Un\G36)
'Alert output flag (Process alarm lower limit)' (Un\G37)
'Alert output flag (Rate alarm upper limit)' (Un\G38)
'Alert output flag (Rate alarm lower limit)' (Un\G39)
Controlled by the A/D converter module
Alarm ON (1)
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