Specifications

SDM-CD16AC 16 Channel AC/DC Controller
9
Mixing fan: Activate whenever the heating or cooling units are activated.
Activate for 5 minutes out of every 15 minutes.
The program assumes the temperature measurements have been made, and the
average temperature for each greenhouse is computed and residing in Input
Locations 1 through 5.
Input Location assignments are as follows:
Input
Location
Location
Label Description
1..5 Temp #1..#5 Avg temp, greenhouse 1..5
10..14 Heat #1..#5 Heater control, greenhouse 1..5 SDM-CD16AC
Port 1..5
15..19 Cool #1..#5 Cooler control, greenhouse 1..5 SDM-CD16AC
Port 6..10
20..24 Fan #1..#5 Fan control, greenhouse 1..5 SDM-CD16AC
Port 11..15
01: Beginning of Loop (P87) Master Loop, End
01: 0 Delay Loop at Step 30
02: 5 Loop Count
START HEATER CONTROL LOGIC
02: If X<=>F (P89) If "Heater On"
01: 1-- X Loc threshold is
02: 4 < exceeded
03: 23.5 F
04: 30 Then Do Then
03: Z=F (P30) Put a "1" into Heater
01: 1 F Control Location
02: 0 Exponent of 10
03: 10-- Z Loc :
04: End (P95) End Then Do/End
05: If X<=>F (P89) If Heater
01: 10-- X Loc #1 on (Heater Control
02: 2 <> Location <> 0)
03: 0 F
04: 30 Then Do Then
06: If X<=>F (P89)
01: 1-- X Loc Temp #1 Check Upper Threshold
02: 3 >= to see if heater should
03: 25.5 F be turned off
04: 30 Then Do