Mitsubishi Electric Melsec iQ-R Series User Manual page 108

Warning output flag (Process alarm lower limit)
The lower limit warning of the process alarm can be checked for each channel.
b15 b14 b13 b12 b11 b10 b9
0 0 0 0 0
(2)
(1) 0: Normal, 1: Alarm ON
(2) 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 (Process alarm lower limit)
■Warning output flag status
• When a value is out of the range specified in 'CH1 Process alarm lower lower limit value' (Un\G520), Alarm ON (1) is stored
in the corresponding bit of 'Warning output flag (Process alarm lower limit)' (Un\G37).
• When a warning is detected in any channel where the A/D conversion and the warning output setting (process alarm) are
enabled, 'Warning output signal' (X8) also turns on.
■Clearing Warning output flag
• When the digital operation value falls within the set range, the flag is automatically cleared.
• When 'Operating condition setting request' (Y9) is turned on and off, the flag is cleared.
Warning output flag (Rate alarm upper limit)
The upper limit warning of the rate alarm can be checked for each channel.
b15 b14 b13 b12 b11 b10 b9
0 0 0 0 0
(2)
(1) 0: Normal, 1: Alarm ON
(2) 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 limit)
■Warning output flag status
• When a value is out of the range specified in 'CH1 Rate alarm upper limit value' (Un\G524), Alarm ON (1) is stored in the
corresponding bit of 'Warning output flag (Rate alarm upper limit)' (Un\G38).
• When a warning is detected in any channel where the A/D conversion and the warning output setting (rate alarm) are
enabled, 'Warning output signal' (X8) also turns on.
■Clearing Warning output flag
• When the change rate of the digital output value falls within the set range, the flag is automatically cleared.
• When 'Operating condition setting request' (Y9) is turned on and off, the flag is cleared.
APPX
106
Appendix 3 Buffer Memory Areas
b8 b7 b6 b5 b4
0 0 0 CH8 CH7 CH6 CH5
b8 b7 b6 b5 b4
0 0 0 CH8 CH7 CH6 CH5
b3 b2 b1 b0
CH4 CH3 CH2 CH1
(1)
CH1 CH2 CH3
37
b3 b2 b1 b0
CH4 CH3 CH2 CH1
(1)
CH1 CH2 CH3
38
CH4 CH5 CH6
CH4 CH5 CH6
CH7 CH8
CH7 CH8