Hired-Hand Farm Hand Series: SC-5v2 - Manual (Page 14)

Part No. 4801-5324 Rev 9-05 Farm Hand SC-5v2 5 Stage 14 of 40
P21 – Curtain Run Time (sec.)
When the controller determines that curtains need to run open or close, this
setting determines how long they run. Valid settings are 1 to 240 seconds.
P22 – Curtain Initial Run Time (sec.)
When the controller determines that the curtains should run open and senses that
they are closed, it uses this parameter for the ‘first’ run. This setting is used to
allow the curtains to open enough on the first run to guarantee adequate
ventilation. Valid settings are 1 to 240 seconds.
P23 – Unit 1 Degrees above target
Generally a grower would like to give his variable speed and/or first stage fans
an opportunity to ventilate the building before starting curtains open. Thus,
when the curtains do come down, they will most likely stay down for a fair
period of time. This setting allows the user to do that. Valid settings are: 0 - 25.
P24 – Unit 2 Degrees above target
Occasionally, a grower may want one curtain sidewall to drop before the other
to try to avoid large temperature swings. This setting allows for this to happen.
Note: If you would like both curtain units to always react together, you
must set P23 = P24.
P25 – Tunnel “On” Temperature
This is the sensor 3 temperature at which the controller will enter tunnel mode.
Only applicable when tunneling on outside temperature.
P26 – Tunnel “Off” Temperature
This is the sensor 3 temperature at which the controller will exit tunnel mode.
Only applicable when tunneling on outside temperature.
P27 – Close Override (Degrees Below Target)
This setting provides the grower a temperature at which to override the curtains
closed. The setting represents degrees below target at which time the curtains
will begin closing regardless of the cycle. The setting allows the user to
anticipate quick temperature drops to help maintain a stable inside temperature.
Valid settings are 1-25.
6.4 PC Compatible Hired-Hand Network Parameters
This option requires Hired-Hand’s Farm Manager Software. The controller has 3 functions which
are used to set it up on the Hired-Hand PC compatible inter-controller network (HHNet). These
are:
P40 - HHNet Address
HHNet allows you to connect up to 32 controllers on a single communications
port of your personal computer (PC). In order for the computer to recognize the
communications from the controllers, each controller must have a unique
address. For example, if you have two SC-5v2s, and two Power Vents you
would need to set the first SC-5v2 to be address 1, the second Swine Finisher to
address 2, the first Power Vent to address 3, and the second Power Vent to
address 4. Valid settings are: 1 - 32. (You do not have to address the controllers
in any particular order.)
P41 -- Version Number
This is not settable. It is the version of controller software.
P42 -- Controller Type
This is not settable. It is a unique number that allows the network software
(Farm Manager) to know what type controller it is.