Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 133

■Warning output signal (b8)
Alert output signal (Un\G69, b8) turns on when the process alarm or rate alarm has been detected. When the alert output
function (process alarm/rate alarm) is disabled for all channels, 'Alert output signal' (Un\G69, b8) is always off.
Alarm Operation
Process alarm • The process alarm turns on when 'CH1 Digital operation value' is equal to or exceeds the setting range set in 'CH1 Process
alarm upper upper limit value' (Un\G514) or is equal to or falls below the setting range set in 'CH1 Process alarm lower lower
limit value' (Un\G520). The ALM LED also turns on along with the signal turning on. The target of alert output is the channels
only where the alert output function (process alarm) and the A/D conversion are both enabled.
• Process alarm turns off when 'CH1 Digital output value' falls within the setting range for all the channels where the A/D
conversion is enabled. The ALM LED also turns off along with the off of the signal.
Rate alarm • The process alarm turns on when the change rate of 'CH1 Digital operation value' is equal to or exceeds the setting range
set in 'CH1 Rate alarm upper limit value' (Un\G524) or is equal to or falls below the setting range set in 'CH1 Rate alarm
lower value' (Un\G526). The ALM LED also turns on along with the signal turning on. The target of alert output is the
channels only where the alert output function (rate alarm) and the A/D conversion are both enabled.
• Rate alarm turns off when the change rate of 'CH1 Digital output value' returns to within the setting range for all the channels
where the A/D conversion is enabled. The ALM LED also turns off.
Warning output flag (Process alarm upper limit)
Warning output flag (Process alarm lower limit)
Warning output flag (Rate alarm upper limit)
Warning output flag (Rate alarm lower limit)
'Warning output signal'
(Un\G69, b8)
■Operating condition setting completed flag (b9)
When changing values of the buffer memory, use as an interlock condition to turn offonoff 'Operating condition setting
request' (Un\G70, b9).
For the buffer memory areas which require turning offonoff of 'Operating condition setting request' (Un\G70, b9) to enable
the changed values, refer to the following.
Page 111 Buffer Memory Areas
When 'Operating condition setting completed flag' (Un\G69, b9) is off, the A/D conversion is not performed.
When 'Operating condition setting request' (Un\G70, b9) is on, 'Operating condition setting completed flag' (Un\G69, b9) turns
off.
ON
'Module READY'
(Un\G69, b0)
'Operating condition setting
completed flag' (Un\G69, b9)
'Operating condition setting
request' (Un\G70, b9)
'A/D conversion completed
flag' (Un\G69, b14)
Controlled by the analog input module
0 Alarm occurrence
ON
OFF
Controlled by the analog input module
Controlled by the program
ON
OFF
ON
ON
OFF
0
OFF
ON
OFF
ON
Appendix 4 Buffer Memory Areas
A
APPX
131