Defining a device a bit differently. How to?

myer0244

Hello all! First off I will explain what I am trying to do here:

- I have several classrooms that will have an identical program/UI. The only thing that will differ in these programs will be the System Number.

- I have a centralized admin system that can control each of the classrooms using simple M2M.

- On the admin system touch panel, when I select a room I want to control, the control buttons "Channel Port" on the page are set to the corresponding room's System Number. EXAMPLE: Push button for System 10's room controls --> Button "Channel Port" on Admin TP's page that popped up is set as 10 for each button.


NOW for my dilemma:
On each rooms program, it wont let me define the remote admin tp as such:

DEFINE_DEVICE
dvAdminTP = 10001:SYSTEM.NUMBER:50

I get the error: "Symbol [SYSTEM] not defined"

Anyone know a way to do this without modifying each room's program individually? Thanks Much!

Andrew G Welker

After a bit of thinking, I think I would do something like this.

DEFINE_DEVICE

dvMaster		= 0:1:0
dvRoomTP		= 10001:1:0 //This is the room's touchpanel

DEFINE_VARIABLE
dev vdvAdminTP //This is the Admin TP

integer nSysID
(*  If the touchpanel buttons are identical, you could do something like this.
dev vdvTP[]=
{
	vdvAdminTP,
	dvRoomTP
}*)

DEFINE_EVENT
data_event[dvMaster]
{
	online:
	{
		nSysID = get_system_number()
		
		vdvAdminTP = 10001:nSysID:50
		send_string 0,"'vdvAdminTP is defined as ',itoa(vdvAdminTP.NUMBER),':',itoa(vdvAdminTP.PORT),':',itoa(vdvAdminTP.SYSTEM)"
	}
}

This works, as tested on an NI-3000 with the latest firmware. Then in the events for your touchpanel you can either use a DEV array or you can just use the vdvAdminTP for the events from the Admin touchpanel. Hope that helps.

myer0244

dev vdvTP[]=
{
	vdvAdminTP,
	dvRoomTP
}

When I use the dev array, at the line "vdvAdminTP," i get the error "Initializer is not a constant"

Andrew G Welker

Ok, that makes some sense. Sorry about that. Try this:

DEFINE_VARIABLE
dev vdvAdminTP //This is the Admin TP

integer nSysID
//If the touchpanel buttons are identical, you could do something like this. Set the array members in the online event
dev vdvTP[2]

DEFINE_EVENT
data_event[dvMaster]
{
	online:
	{
		nSysID = get_system_number()
		
		vdvAdminTP = 10001:nSysID:50
		
		vdvTP[1] = vdvAdminTP
		vdvTP[2] = dvRoomTP
		send_string 0,"'vdvAdminTP is defined as ',itoa(vdvAdminTP.NUMBER),':',itoa(vdvAdminTP.PORT),':',itoa(vdvAdminTP.SYSTEM)"
	}
}

or, alternatively, try

DEFINE_START
vdvTP[1] = vdvAdminTP
vdvTP[2] = dvRoomTP

myer0244

Compiles successfully much obliged!

Auser

Andrew G Welker wrote: »

vdvAdminTP = 10001:nSysID:50

You'll need a call to rebuild_event() to rebuild the event tables if you have any events for vdvTP or vdvAdminTP as far as I can see (or else the event tables won't be updated when vdvAdminTP changes).

Andrew G Welker wrote: »

DEFINE_START
vdvTP[1] = vdvAdminTP
vdvTP[2] = dvRoomTP

Odds are you'll need to set_length_array(vdvTP, 2) and rebuild_event() if the dev array is not a constant and you populate it at runtime like this. vdvTP will have a default length of 0, as opposed to its size of 2, and you will need to reflect how many devs are stored in the array before updating the event tables from memory.