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MELSEC-Q
5 DETAILS AND SETTING OF FUNCTIONS
Outline of alarm output function operation
The following gives the outline of the alarm output function operation.
• Example of alarm output operation
Lower/ lower limit value
Lower/ upper limit value
Upper/ lower limit value
Upper/ upper limit value
ON
ON
OFF
OFF
Alarm output flag
bit0 (Lower limit alarm)
bit8 (Upper limit alarm)
Count cycle
• Assuming that the upper/upper limit = upper/lower limit and lower/upper limit =
lower/lower limit, operation is performed as shown below.
bit8 (Upper limit alarm)
Alarm output flag
bit0 (Lower limit alarm)
Lower/ upper limit value
Lower/ lower limit value
Upper/ upper limit value
Upper/ lower limit value
ON
ON
OFF
OFF
POINT
• Since the "sampling pulse number" of the buffer memory is updated at intervals
of the count cycle setting value (refer to Section 5.1.4), the alarm output flag also
turns ON/OFF at the timing of the count cycle setting value.
• The settings are reflected on the module by turning ON the operating condition
setting request flag (Y1) after setting the values to the buffer memory.
Summary of Contents for QD60P8-G
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Page 14: ...A 12 A 12 MEMO ...
Page 18: ...1 4 1 4 MELSEC Q 1 OVERVIEW MEMO ...
Page 95: ...7 12 7 12 MELSEC Q 7 PROGRAMMING MEMO ...
Page 115: ...9 7 9 7 MELSEC Q 9 TROUBLESHOOTING MEMO ...
Page 121: ...App 2 App 2 MELSEC Q APPENDIX MEMO App ...
Page 124: ...Index 3 Index 3 MEMO ...
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