Mitsubishi Electric MELSEC iQ-R Series User Manual page 80

CH1 Warning output flag
The statuses of the upper limit and lower limit warnings can be checked.
b15 b14 b13 b12 b11 b10 b9
0 0 0 0 0
(1) Lower limit warning (0: Normal, 1: Range exceeded)
(2) Upper limit warning (0: Normal, 1: Range exceeded)
■Buffer memory addresses
The following shows the buffer memory addresses of this area.
Buffer memory name
CH Warning output flag
CH Warning output flag (when Q series-compatible
mode is used)
■Warning output flag status
When the sampling pulse number meets one of the following conditions, Range exceeded (1) is stored in the appropriate bit of
'CH1 Warning output flag' (Un\G8).
• The value is greater than or equal to the setting value of 'CH1 Warning output setting value upper/upper limit' (Un\G137).
• The value is less than or equal to the setting value of 'CH1 Warning output setting value lower/lower limit' (Un\G140).
■Clearing the warning output flag
• If an upper limit warning has occurred, Normal (0) is stored in bit 8 of 'CH1 Warning output flag' (Un\G8) when the sampling
pulse number becomes less than the setting value of 'CH1 Warning output setting value upper/lower limit' (Un\G138).
• If a lower limit warning has occurred, Normal (0) is stored in bit 0 of 'CH1 Warning output flag' (Un\G8) when the sampling
pulse number becomes greater than the setting value of 'CH1 Warning output setting value lower/upper limit' (Un\G139).
CH1 Error code
The latest error code detected in the pulse input module is stored. For details, refer to the following.
Page 52 List of Error Codes
■Buffer memory addresses
The following shows the buffer memory addresses of this area.
Buffer memory name
CH Error code
CH Error code (when Q series-compatible mode is
used)
■Clearing an error
Turn on and off 'CH1 Error reset request' (Y8).
CH1 Alarm code
The latest alarm code detected in the pulse input module is stored. For details, refer to the following.
Page 54 List of Alarm Codes
■Buffer memory addresses
The following shows the buffer memory addresses of this area.
Buffer memory name
CH Alarm code
CH Alarm code (when Q series-compatible mode is
used)
■Clearing an alarm
Turn on and off 'CH1 Error reset request' (Y8).
APPX
78
Appendix 3 Buffer Memory Areas
b8 b7 b6 b5 b4
0 0 0 0 0 0
(2)
CH1
8
18
CH1
9
16
CH1
10
25
b3 b2 b1 b0
0 0 0
(1)
CH2 CH3 CH4
24 40 56
50 82 114
CH2 CH3 CH4
25 41 57
48 80 112
CH2 CH3 CH4
26 42 58
57 89 121
CH5 CH6 CH7
72 88 104
146 178 210
CH5 CH6 CH7
73 89 105
144 176 208
CH5 CH6 CH7
74 90 106
153 185 217
CH8
120
242
CH8
121
240
CH8
122
249