5 - 15 5 - 15
MELSEC-Q
5 DETAILS AND SETTING OF FUNCTIONS
5.8 Alarm Output Function
With "alarm output function valid" set in the "alarm output selection" of the
buffer memory, the alarm output function outputs an alarm if the "sampling
pulse number" of the buffer memory exceeds the upper/upper limit value or
lower/lower limit value. The alarm is turned OFF if the sampling pulse number
is below the upper/lower limit value or above the lower/upper limit value after
the output of the alarm.
To set the alarm output function, set four points: upper/upper limit value,
upper/lower limit value, lower/upper limit value and lower/lower limit value.
The buffer memory addresses related to the setting of the alarm output
function are as follows.
Buffer memory address
Item Setting
value
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Alarm output selection
0: Alarm output function
invalid
1: Alarm output function
valid
17 49 81 113
145 177 209 241
Alarm output setting value
upper/upper limit
19 51 83 115
147 179 211 243
Alarm output setting value
upper/lower limit
20 52 84 116
148 180 212 244
Alarm output setting value
lower/upper limit
21 53 85 117
149 181 213 245
Alarm output setting value
lower/lower limit
0 to 32767
22 54 86 118
150 182 214 246
If the setting value is other than in the above values or does not establish the following
relation expression, an alarm output setting range outside error (error code: 500)
occurs.
Upper/upper limit upper/lower limit lower/upper limit lower/lower limit
To clear the error, turn ON the error reset request (Y8 to YF) of the corresponding
channel.
After this, set a correct value (value that will establish the above relation expression
and is within the setting range), and then turn ON the operating condition setting
request flag (Y1).
The buffer memory addresses related to the alarm output are as follows.
Buffer memory address
Item Read
value
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Sampling pulse number
0 to 32767
0
32
64
96
128
160
192
224
Alarm output flag
bit0: Lower limit alarm
bit8: Upper limit alarm
18 50 82 114
146 178 210 242
[Bit pattern of alarm output]
Not used
Not used
b15
b0
b4
b8
0:OFF(Normal)
1:ON(Range over)
Meaning
Lower limit alarm
Upper limit alarm
Storage Item
Содержание QD60P8-G
Страница 1: ......
Страница 2: ......
Страница 6: ...A 4 A 4 Disposal Precautions CAUTION When disposing of the product handle it as industrial waste ...
Страница 14: ...A 12 A 12 MEMO ...
Страница 18: ...1 4 1 4 MELSEC Q 1 OVERVIEW MEMO ...
Страница 95: ...7 12 7 12 MELSEC Q 7 PROGRAMMING MEMO ...
Страница 115: ...9 7 9 7 MELSEC Q 9 TROUBLESHOOTING MEMO ...
Страница 121: ...App 2 App 2 MELSEC Q APPENDIX MEMO App ...
Страница 124: ...Index 3 Index 3 MEMO ...
Страница 127: ......
Страница 128: ......