Mitsubishi Electric MELSEC iQ-R Series User Manual page 119

Alert output flag (Rate alarm upper limit)
The upper 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 b8 to b15 are fixed to 0.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Alert output flag (Rate alarm upper limit)
■Alert output flag status
• If the limit specified in the rate alarm upper limit value is exceeded, Alarm ON (1) is stored in 'Alert output flag (Rate alarm
upper limit)' (Un\G38) of the corresponding 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' (XD) also turns on.
■Clearing Alert output flag
• As the variation in the temperature measured value returns to the setting range, the flag is automatically cleared.
• Turning on and off 'Operating condition setting request' (Y9) allows the flag to be cleared.
Alert 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 b8 to b15 are fixed to 0.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Alert output flag (Rate alarm lower limit)
■Alert output flag status
• When the value is out of the range specified in the rate alarm lower limit value, Alarm ON (1) is stored in 'Alert 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' (XD) also turns on.
■Clearing Alert output flag
• As the variation in the temperature measured value returns to the setting range, the flag is automatically cleared.
• Turning on and off 'Operating condition setting request' (Y9) allows the flag to be cleared.
b8 b7 b6 b5 b4 b3 b2
0 CH8 CH7 CH6 CH5 CH4 CH3 CH2
(1)
CH1 CH2
38
b8 b7 b6 b5 b4 b3 b2
0 CH8 CH7 CH6 CH5 CH4 CH3 CH2
(1)
CH1 CH2
39
b1 b0
CH1
CH3 CH4 CH5
b1 b0
CH1
CH3 CH4 CH5
CH6 CH7 CH8
CH6 CH7 CH8
APPX
Appendix 3 Buffer Memory Areas
A
117