Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 129

Warning output flag (Rate alarm lower limit)
The lower limit alarm of the rate alarm can be checked for each channel.
b15 b14 b13 b12 b11 b10 b9
0 0 0 0 0 0 0
(2)
(1) 0: Normal, 1: Alarm ON
(2) The values of b4 to b15 are fixed to 0.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Warning output flag (Rate alarm lower limit)
■Alert output flag status
• When the value becomes equal to or smaller than the range specified in the rate alarm lower limit value, Alarm ON (1) is
stored in 'Warning output flag (Rate alarm lower limit)' (Un\G39) corresponding to each channel.
• If an alert is detected even in one channel, of the channels where conversion is enabled and the alert output setting (Rate
alarm) is enabled, 'Alert output signal' (Un\G69, b8) also turns on.
■Clearing Alert output flag
• When the change rate of the digital output value returns within the setting range, the flag is automatically cleared.
• Turning offonoff 'Operating condition setting request' (Un\G70, b9) allows the flag to be cleared.
Warning output flag (Rate alarm upper limit/lower limit) [FX3 allocation mode]
When the FX3 allocation mode function is used, the upper/lower limit alarm of the rate alarm can be checked.
b15 b14 b13 b12 b11 b10 b9
0 0 0 0 0 0 0
(2)
(1) 0: Normal, 1: Alarm ON
(2) The values of b8 to b15 are fixed to 0.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Warning output flag (Rate alarm upper/lower
limit) (in FX3 allocation mode function)
■Alert output flag status
• When the value is equal to or exceeds the limit specified by the rate alarm upper limit value or is equal to or falls below the
rate alarm lower limit value, Alarm ON (1) is stored in Warning output flag (rate alarm) corresponding to each channel.
• If an alert is detected even in one channel, of the channels where conversion is enabled and the alert output setting (Rate
alarm) is enabled, 'Alert output signal' (Un\G69, b8) also turns on.
■Clearing Alert output flag
• When the change rate of the digital output value returns within the setting range, the flag is automatically cleared.
• Turning offonoff 'Operating condition setting request' (Un\G70, b9) allows the flag to be cleared.
b8 b7 b6 b5 b4 b3 b2
0 0 0 0 0 CH4 CH3 CH2
(1)
CH1
39
b8 b7 b6 b5 b4 b3 b2
CH4 CH4 CH3 CH3 CH2 CH2 CH1
Upper Lower Upper Lower Upper Lower
0
limit limit limit limit limit limit
value value value value value value
(1)
CH1
27
b1 b0
CH1
CH2 CH3
b1 b0
CH1
Upper Lower
limit limit
value value
CH2 CH3
CH4
CH4
APPX
Appendix 4 Buffer Memory Areas
A
127