| 摘要 |
PROBLEM TO BE SOLVED: To enable easy automatic change corresponding to appropriate operation sequence, in controlling number of a plurality of pumps having different capacity while appropriately combining them by automatically determining set flow rate groups previously set according to combination sequence of the pumps, from the combination sequence of a pin board. SOLUTION: For controlling water feeding equipment having two kinds of pumps, that is, a large-capacity one and a small capacity one, by a number controlling device 3 operation/stopping setting value groups of all sequence patterns are artificially input as parameters, sequence of the pump number is read from a number sequence setting means 2 for automatically selecting the value groups. In order to calculate set flow rate at the time of sequence setting, it is determined whether the first pump (n=1) is a large capacity one or not. When the answer is YES, (n=1) is substituted into C+2n-1 to obtain the value. When the answer is NO, after effecting the condition that C=C+0, it is determined whether the next pump (n=2) is a large capacity one or not. When the answer is YES, (n=2) is substituted into C=C+2n-1.
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