Mitsubishi Electric MELSEC iQ-R Series User Manual page 140

Alert output lower limit flag
The lower limit alarm can be checked for each channel.
b15 b14 b13 b12 b11 b10 b9
0 0 0 0 0
(2)
(1) 0: Normal, 1: Alert alarm ON
(2) b4 to b15 of the R60DA4 and b8 to b15 of the R60DAV8 and R60DAI8 are fixed to 0.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Alert output lower limit flag
■Alert output upper limit flag status
• When the value is out of the range specified in the alert output lower limit value, Alert alarm ON (1) is stored in 'Alert output
lower limit flag' (Un\G37) corresponding to each channel.
• When an alert is detected in any channel where the D/A conversion and the alert output setting are enabled, 'Alert output
signal' (XE) also turns on.
■Clearing Alert output lower limit flag
Turn on and off 'Operating condition setting request' (Y9) or 'Alert output clear request' (YE).
Alert output flag [Q compatible mode]
When the Q compatible mode function is used, the upper/lower limit alert can be checked.
b15 b14 b13 b12 b11 b10 b9
CH8 CH8 CH7 CH7 CH6
(2)
(1) 0: Normal, 1: Alarm ON
(2) b8 to b15 of the R60DA4 are fixed to 0.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
Alert output flag
■Alert output flag status
• When the value is out of the range specified in the alert output upper limit value or alert output lower limit value, Alert alarm
ON (1) is stored in 'Alert output flag' (Un\G48) corresponding to each channel.
• When an alert is detected in any channel where the D/A conversion and the alert output setting are enabled, 'Alert output
signal' (XE) also turns on.
■Clearing Alert output flag
Turn on and off 'Operating condition setting request' (Y9) or 'Alert output clear request' (YE).
APPENDICES
138
Appendix 3 Buffer Memory
b8 b7 b6 b5 b4
0 0 0 CH8 CH7 CH6 CH5
CH1
37
b8 b7 b6 b5 b4
CH6 CH5 CH5 CH4 CH4 CH3 CH3
CH1
48
b3 b2 b1 b0
CH4 CH3 CH2 CH1
(1)
CH2 CH3 CH4
b3 b2 b1 b0
CH2 CH2 CH1 CH1
(1)
CH2 CH3 CH4
CH5 CH6 CH7
CH5 CH6 CH7
CH8
CH8