Sample Procom Points List


Below are three sample of a Microgrow Procom unit point list.

 


This is a sample of a point list for a multizone three arce greenhouse

 

The greenhouse was comprised of three environmental zones. The grower wishes a temperature and humidity sensor for each zone. In addition they wished to track the outdoor air temperatures and the light levels. This greenhouse was built during various phases ( zone ) and has a mix of cooling devices and heating devices.

Table 1

Input Number

Sensor name / zone name ( IF single zone, forgo zone name )

1

Temperature - zone one ( east zone )

2

Humidity - zone one ( east zone )

3

Temperature - zone two ( middle zone )

4

Humidity - zone two ( middle zone )

5

Temperature - zone three ( west zone )

6

Humidity - zone three ( west zone )

7

Outdoor air temperature

8

Light

Items to be controlled.

Zone one( east zone ) - the old block, which is comprised of 10 bays of gutter houses each with a unit heater, HAF flow fans, a 1 hp sidewall exhaust fan per bay, and endwall vent system and a pad cooling system.

Zone two( middle zone )- a newer zone is comprised of 10 bays of gutter houses each with a gutter vent system, unit heaters for each bay, hot water heating below the benches ( not boilers are controlled by stand a lone indoor-outdoor controller ), HAF fans and high pressure fog cooling.

Zone three ( west zone ) - similar to zone two, but with hot water heating only.

Table 2


Output Number

Zone number/name, device name, control action ( ie heating, cooling, fog etc. )

1

Endwall vent open - zone one (east zone)

2

Endwall vent close - zone one ( east zone)

3

Heating Stage one - Unit heaters bay 1 ( exterior bay ) - zone one

4

Heating Stage two - Unit heaters bays 2, 4, 6, 8 ,10 ( interior bays) - zone one

5

Heating Stage three - Unit heaters bays 3, 5, 7,9 ( interior bays) - zone one

6

HAF - Horizontal Air flow Fans - zone one (east zone) /4 - 1/4 hp/120/1/60 motors per bay.

7

Cooling Stage One - Exhaust fans bay 1 and 10 ( exterior bays ) - zone one / 1 horsepower /230/1/60 motor

8

Cooling Stage Two - Exhaust fans Bays 2, 4, 6, 8 ( interior bays ) - zone one / 1 horsepower /230/1/60 motor

9

Cooling Stage Three - Exhaust fans Bays 3,5,7,9 ( interior bays ) - zone one / 1 horsepower /230/1/60 motor

10

Cooling Stage Four - Evaporative Cooling - zone one / 1 horsepower /230/1/60 motor

11

Future - unassigned for zone one - future use.

12

Roof vents open - zone two ( middle zone )


Table 3 - an exansion module is required due to all the equipment used.


Output Number

Zone number/name, device name, control action ( ie heating, cooling, fog etc. )

13

Roof vents close - zone two ( middle zone )

14

Heating stage one - 24 VAC heating zone valves - low level heat - zone two ( middle zone )

15

Heating stage one - Unit heaters bays 12, 14, 16, 18, 20 ( interior bays ) - zone two ( middle zone )

16

Heating stage two - Unit Heaters Bays 11, 13, 15, 17, 19, ( interior bays ) - zone two ( middle zone )

17

HAF - horizontal air flow fans - zone two ( middle zone ) /4 - 1/4 hp/120/1/60 motors per bay.

18

Fog cooling/humidification - zone two ( middle zone )

19

Future - unassigned for zone two - future use.

20

Roof vents open - zone three - west zone

21

Roof vents close - zone three - west zone

22

Heating stage one - Unit heaters bays 22, 24, 26, 28 - zone three - west zone

23

Heating stage two - Unit heaters bays 21, 23, 25, 27 - zone three - west zone

24

HAF fans - zone three - west zone / 4- 1/4 hp/120/1/60 motors per bay.

 




This is a sample of a point list for a single zone 1/2 acre greenhouse.

This single zone greenhouse is comprised of gutter connected structures. The equipment that is controlled is carbon dioxide generation, heating via combination of boilers and over head natural gas fired unit heaters, double ridge vents set up to windward/leeward venting, HAF fans, fog cooling, photolighting, shade/energy curtain. The grower as also included as weathermaster station. 

 

Table 1

Input Number

Sensor name / zone name ( IF single zone, forgo zone name )

1

Temperature

2

Humidity

3

Carbon Dioxide

4

K-Lux light Sensor

5

Hot water sensor

6

Spare for future

7

Spare for future

8

Spare for future

Note: Since the grower is planning on future computr control via Grow Link and since wind ward/ lee ward venting was required, the grower decided to include a weather master station for wind speed/direction, rain, outdoor temperature. These sensors are connected to the weathermaster, hence the spare or future sensor points.

Table 2


Output Number

Zone number/name, device name, control action ( ie heating, cooling, fog etc. )

1

East Vents - Open

2

East Vents - Close

3

West Vents - Open

4

West Vents - Close

5

Shade - Open

6

Shade - Close

7

Photo Lights

8

Carbon Dioxide

9

HAF fans

10

Fog Cooling

11

Boiler Control

12

Heating Stage one - bench heat / zone valves


Table 3 - an exansion module is required due to all the equipment used.

 

Output Number

Zone number/name, device name, control action ( ie heating, cooling, fog etc. )

13

Heating Stage Two - Outside Bay Unit heaters

14

Heating Stage Three - Bays 2 and 4 Unit Heaters

15

Heating Stage Four - bays 3 and 5 Unit heaters

16

Future assignment - or Possible Irrigation Zone - if grower wishes

17

Future assignment - or Possible Irrigation Zone - if grower wishes

18

Future spare

19

Future spare

20

Future spare

21

Future spare

22

Future spare

23

Future spare

24

Future spare

 






Or the same facilty as above but has only of the endwall shutters, endwall exhaust fans and the overhead unit heaters.

Table 1

Input Number

Sensor name / zone name ( IF single zone, forgo zone name )

1

Temperature

2

Humidity

3

Spare for future

4

Spare for future

5

Spare for future

6

Spare for future

7

Spare for future

8

Spare for future

 

Table 2

 

Output Number

Zone number/name, device name, control action ( ie heating, cooling, fog etc. )

1

Heating - Stage One - Unit heaters/outside bays

2

Heating Stage Two - Bays 2 and 4 Unit Heaters

3

Heating Stage Three - Bays 2 and 4 Unit Heaters

4

Cooling Stage One - shutters open

5

Cooling - Stage Two - Endwall exhaust fans outside bays ( Bays 1 and 5 ) - 1 hp/230/1/60 motors

6

Cooling - Stage Three - Bays 2 and 4 - Endwall exhaust fans outside bays. - 1 hp/230/1/60 motors

7

Cooling - Stage Four - Bays 3 and 5 - Endwall exhaust fans outside bays. - 1 hp/230/1/60 motors

8

HAF fans - 3 units per bay 1/4 hp 120/1/60 each

9

Spare - future

10

Spare - future

11

Spare - future

12

Spare - future

 

Table 3 - is not required

In this case table three is not required since the basic procom unit with 12 outputs still provides the grower with a few extra future points. As the grower expands his facility in size and or equipment the spars can be used and if he get to a point when all the spares are used up. They can then at that time consider adding the expansion module.
 
Ie: Say two years down the way he wishes to add Evaporative or fog cooling. Well simply assign output 9 as cooling -stage five, or shuffle output 8 and wire to output 9 and assign as HAF for output 9 and assign output 8 as Cooling stage 5. That will still give the grower outputs 10, 11 and 12 for future use. Or maybe he wished simply to use for irrigation well just simply connect the devices - asign the outputs and 10, 11 and 12 are irrigation outputs.






This is just a sampling. As you can see the combinations are endless. This case example was simple in nature since only environmental control was via simple devices. If you need assistance on defining you inputs and outputs contact us. That's what we are hear for.

Most control equipment require only only output for control. The exception for this rule is motors for vents, shade curtains or engergy curtains. For these you need an output to open and an output to close.


This is just a sampling. As you can see the combinations are endless. This case example was simple in nature since only environmental control was via simple devices. If you need assistance on defining you inputs and outputs contact us. That's what we are hear for.

Most control equipment require only one output for control. The exception for this rule is motors for vents, shade curtains or engergy curtains. For these you need an output to open and an output to close.

Note: In the points list we provided a breif description of the motor size and voltage for equipment that need be controlled by line voltage. This information allows us to price out a control panel with properly sized contactors and relays for your applications.



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ph (403)241-8234, fax (403)241-8234
Email: agropon@agroponic.com, ULR: agroponic.com

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This page added to site January 2003