Campbell Scientific SDM-CD16AC 16-Channel ac/dc Relay Controller User Manual

Page 20

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SDM-CD16AC 16 Channel AC/DC Controller

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

1: Beginning of Loop (P87)

Master Loop, End

1: 0

Delay

Loop at Step 30

2: 5

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: 10--

Z Loc :


4: End (P95)

End Then Do/End


5: If X<=>F (P89)

If Heater

1: 10--

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: 10--

Z Loc :


8: End (P95)

Else Then Do/End

16

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