Campbell Scientific SDM-CD16D 16-Channel Digital Control Port Expansion Module User Manual
Page 15
SDM-CD16D 16 Channel Digital Control Port Expansion Module
5: If (X<=>F) (P89)
if the heater is on (heater
1: 10
-- X Loc [ Heat_1 ]
control location <>0)
2: 2
<>
3: 0
F
4: 30
Then
Do
then
6: If (X<=>F) (P89)
check upper threshold
1: 1
-- X Loc [ Temp_1 ]
to see if heater should
2: 3
>=
be turned off
3: 25.5
F
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 [ Heat_1 ]
8: End (P95)
end ‘then do’
9: Else (P94)
else, if the heater is off
10: Z=F (P30)
enter a ‘0’ into heater
1: 0
F
control location
2: 0
Exponent
of
10
3: 10
-- Z Loc [ Heat_1 ]
11: End (P95)
end ‘then do/else’
End heater control logic
Start cooler control logic
12: If (X<=>F) (P89)
if ‘cooler on’ threshold
1: 1
-- X Loc [ Temp_1 ]
is exceeded
2: 3
>=
3: 27.5
F
4: 30
Then
Do
then
13: Z=F (P30)
put a ‘1’ into cooler
1: 1
F
control location
2: 0
Exponent
of
10
3: 15
-- Z Loc [ Cool_1 ]
14: End (P95)
end ‘then do’
15: If (X<=>F) (P89)
if cooler is on (cooler
1: 15
-- X Loc [ Cool_1 ]
control location <>0)
2: 2
<>
3: 0
F
4: 30
Then
Do
then
11