Campbell Scientific SDM-CD8S 8 Channel Solid State DC Control Module - Manual (Page 18)

SDM-CD8S 8 Channel Solid State DC Control Module
Input Location assignments are as follows:
Input
Location Location
Label
Description
1, 2 Temp #1, 2 Avg temp, greenhouse 1, 2
11, 12 Heat #1, 2 Heater control, greenhouse 1, 2 SDM-CD8S
Port 1, 2
13, 14 Cool #1, 2 Cooler control, greenhouse 1, 2 SDM-CD8S
Port 3, 4
15, 16 Fan #1, 2 Fan control, greenhouse 1, 2 SDM-CD8S
Port 5, 6
1: Beginning of Loop (P87) Master Loop, End
1: 0 Delay Loop at Step 30
2: 2 Loop Count
START HEATER CONTROL LOGIC
2: If X<=>F (P89)
If "Heater On"
1: 1-- X Loc threshold is
2: 4 < exceeded
3: 23.5 F
4: 30 Then Do Then
3: Z=F (P30)
Put a "1" into Heater
1: 1 F Control Location
2: 0 Exponent of 10
3: 11-- Z Loc :
4: End (P95)
End Then Do/End
5: If X<=>F (P89)
If Heater
1: 11-- X Loc #1 on (Heater Control
2: 2 <> Location <> 0)
3: 0 F
4: 30 Then Do Then
6: If X<=>F (P89)
1: 1-- X Loc Temp #1 Check Upper Threshold
2: 3 >= to see if heater should
3: 25.5 F be turned off
4: 30 Then Do
7: Z=F (P30)
If heater should be turned
1: 0 F off, enter a "0" into
2: 0 Exponent of 10 heater control location
3: 11-- Z Loc :
8: End (P95)
Else Then Do/End
9: Else (P94)
Else, If the heater is off,
12