Diagram D0
34
Program D5:
Instead of the independent temperature difference
T6
–
T5
the controller com-
pares the sensors
T6
and
T3
.
A1 = T1 > (T4 + diff1) & T4 < max1
A2 = T2 > (T4 + diff2) & T2 > min1 & T4 < max2
A3 = T3 > (T4 + diff3) & T4 < max3
A4 = T6 > (T3 + diff4) & T6 > min2 & T3 < max4
Program D6:
Output
A4
switches only because of the following function.
A1 = T1 > (T4 + diff1) & T4 < max1
A2 = T2 > (T4 + diff2) & T2 > min1 & T4 < max2
A3 = T3 > (T4 + diff3) & T3 > min2 & T4 < max3
A4 = T4 > (T5 + diff4) & T5 < max4
Program D7:
Outputs
A3
and
A4
switch only because of the following function.
A3 = T3 > (T4 + diff3) & T4 < max3
A4 = T4 > (T5 + diff4) & T4 > min2 & T5 < max4
T1 T2 T3
min1 min2
diff1 diff2 diff3
A1 A2 A3
T4
max1
max2
max3
diff4 / A4
T5
max4
Required settings:
diff1
…coll. T1 – TK1 T4
A1
diff2
…heat source T2 – TK1 T4
A2
diff3
…boiler T3 – TK1 T4
A3
diff4
…TK1 T4 – TK2 T5
A4
min1
…heat source T2
A2
min2
…boiler T3
A3
max1
…limit TK1 T4
A1
max2
…limit TK1 T4
A2
max3
…limit TK1 T4
A3
max4
…limit TK2 T5
A4
T6
min2
diff4
A4
T1 T2 T3
min1 max4
diff1 diff2 diff3
A1 A2 A3
T4
max1
max2
max3
Required settings:
diff1
…coll. T1 – TK1 T4
A1
diff2
…heat source. T2 – TK1 T4
A2
diff3
…sensor T3 – TK1 T4
A3
diff4
…sensor T6 – sensor T3
A4
min1
…heat source T2
A2
min2
…Sensor T6
A4
max1
…limit TK1 T4
A1
max2
…limit TK1 T4
A2
max3
…limit TK1 T4
A3
max4
…limit sensor T3
A4