Campbell Scientific SDM-CD16D 16-Channel Digital Control Port Expansion Module User Manual
Page 16
SDM-CD16D 16 Channel Digital Control Port Expansion Module
16: If (X<=>F) (P89)
check lower threshold to
1: 1
-- X Loc [ Temp_1 ]
see if cooler should be
2: 4
<
turned off
3: 24.5
F
4: 30
Then
Do
17: Z=F (P30)
if cooler should be turned off
1: 0
F
put a ‘0’ into cooler control
2: 0
Exponent
of
1
location
3: 15
-- Z Loc [ Cool_1 ]
18: End (P95)
end ‘then do’
19: Else (P94)
else, if cooler is off
20: Z=F (P30)
put a ‘0’ into cooler
1: 0
F
control location
2: 0
Exponent
of
10
3: 15
-- Z Loc [ Cool_1 ]
21: End (P95)
end ‘then do/else’
End cooler control logic
Start fan control logic based on heater/cooler
22: If (X<=>F) (P89)
if heater is on
1: 10
-- X Loc [ Heat_1 ]
2: 2
<>
3: 0
F
4: 11
Set Flag 1 High
set flag 1
23: If (X<=>F) (P89)
if cooler is on
1: 15
-- X Loc [ Cool_1 ]
2: 2
<>
3: 0
F
4: 11
Set Flag 1 High
set flag 1
24: If Flag/Port (P91)
if flag 1 is set
1: 11
Do if Flag 1 is High
2: 30
Then
Do
then
25: Z=F (P30)
put a ‘1’ into fan control
1: 1
F
location
2: 0
Exponent
of
10
3: 20
-- Z Loc [ Fan_1 ]
26: Else (P94)
else, if flag 1 is reset
27: Z=F (P30)
put a ‘0’ into fan control
1: 0
F
location
2: 0
Exponent
of
10
3: 20
-- Z Loc [ Fan_1 ]
12