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APPX
Appendix 3 Buffer Memory Areas
Alert output flag (Process alarm lower limit)
The lower limit alarm of the process alarm can be checked for each channel.
■Buffer memory address
The following shows the buffer memory address of this area.
■Alert output flag status
• When the value is out of the range specified in the process alarm lower lower limit value, Alarm ON (1) is stored in 'Alert
output flag (Process alarm lower limit)' (Un\G37) corresponding to each channel.
• When an alert is detected in any channel where the A/D conversion and the alert output setting (Process alarm) are
enabled, 'Alert output signal' (X8) also turns on.
■Clearing Alert output flag
• When the digital operation value returns within the setting range, the flag is automatically cleared.
• When 'Operating condition setting request' (Y9) is turned on and off, the flag is cleared.
Alert output flag (Process alarm) [Q compatible mode]
When the Q compatible mode function is used, the upper/lower limit alarm of the process alarm can be checked.
■Buffer memory address
The following shows the buffer memory address of this area.
Only the R60AD8-G can use this area.
■Alert output flag status
• When the value is out of the range specified in the process alarm upper upper limit value or process alarm lower lower limit
value, Alarm ON (1) is stored in 'Alert output flag (Process alarm)' (Un\G50) corresponding to each channel.
• When an alert is detected in any channel where the A/D conversion and the alert output setting (Process alarm) are
enabled, 'Alert output signal' (X8) also turns on.
■Clearing Alert output flag
• When the digital operation value returns within the setting range, the flag is automatically cleared.
• When 'Operating condition setting request' (Y9) is turned on and off, the flag is cleared.
• 0: Normal, 1: Alarm ON
• b8 to b15 of the R60AD8-G are fixed to 0.
Buffer memory name CH
1
CH
2
CH
3
CH
4
CH
5
CH
6
CH
7
CH
8
CH
9
CH
10
CH
11
CH
12
CH
13
CH
14
CH
15
CH
16
Alert output flag (Process alarm lower limit) 37
0: Normal, 1: Alarm ON
Buffer memory name CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Alert output flag (Process alarm) (in Q
compatible mode)
50
CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 CH1CH2CH3CH4CH5CH6CH7CH8
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b0b1b2b3b4
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b0b1b2b3b4
CH1CH2 CH1CH2CH3CH4 CH4 CH3CH5CH6 CH5CH6CH7CH8 CH8 CH7
Lower limit
value
Upper limit
value
Lower limit
value
Lower limit
value
Lower limit
value
Lower limit
value
Lower limit
value
Lower limit
value
Lower limit
value
Upper limit
value
Upper limit
value
Upper limit
value
Upper limit
value
Upper limit
value
Upper limit
value
Upper limit
value