Two NI 700, One TP

pnaidoo1502 · October 2007

I have a system with two NI 700's and one TP. These are connected over IP. On a button push I need to be able to to send strings to the 232 port's of both the masters, like power on of plasma's, make a route on a switch, control a xap etc. Any idea's on how to do this.

Jeff B · October 2007

I would use a dev array.

DEFINE_DEVICE

dvDEVICE_1	=	5001:1:1	// Serial device on system 1
dvDEVICE_2	=	5001:1:2	// Serial device on system 2

dvTP		=	10001:1:0	// Touch panel on system with the program


DEFINE_VARIABLE

// this is the dev array
DEV dvDEVICE[]={dvDEVICE_1,dvDEVICE_2}


DEFINE_EVENT

BUTTON_EVENT[dvTP,1]
    {
    PUSH:
	{
        // This will send the string to both serial ports
	SEND_STRING dvDEVICE, "'STRING TO SEND TO BOTH'"
	}
    }

JB

AMXJeff · October 2007

You also have to remember to set the masters up in master to master mode. It is obvious with Jeff's code below, but wanted to make sure you knew that...

Jeff B wrote:

I would use a dev array.

DEFINE_DEVICE

dvDEVICE_1	=	5001:1:1	// Serial device on system 1
dvDEVICE_2	=	5001:1:2	// Serial device on system 2

dvTP		=	10001:1:0	// Touch panel on system with the program


DEFINE_VARIABLE

// this is the dev array
DEV dvDEVICE[]={dvDEVICE_1,dvDEVICE_2}


DEFINE_EVENT

BUTTON_EVENT[dvTP,1]
    {
    PUSH:
	{
        // This will send the string to both serial ports
	SEND_STRING dvDEVICE, "'STRING TO SEND TO BOTH'"
	}
    }

JB

Jeff B · October 2007

This code would allow for sending a serial string to each device individually.

DEFINE_DEVICE

dvDEVICE_1	=	5001:1:1	// Serial device on system 1
dvDEVICE_2	=	5001:1:2	// Serial device on system 2

dvTP		=	10001:1:0	// Touch panel on system with the program


DEFINE_VARIABLE


DEV dvDEVICE[]={dvDEVICE_1,dvDEVICE_2}

INTEGER nBUTTON_ARRAY[]={2,3}

DEFINE_EVENT

BUTTON_EVENT[dvTP,nBUTTON_ARRAY]
    {
    PUSH:
	{
        STACK_VAR INTEGER nBtnIdx
	// select system to send serial string too
        nBtnIdx = GET_LAST(nBUTTON_ARRAY)

	// Send to serial device on selected system only
	SEND_STRING dvDEVICE[nBtnIdx], "'STRING TO SEND'"
	}
    }

JB

pnaidoo1502 · October 2007

Master to master mode

Thanks for the help, only one other question
How do you configure the masters for master to master mode?

Jeff B · October 2007

To set master to master mode:

Give each master a unique IP and system number. See tech note #348

In the URL list for one master, add the IP for the other master. See tech note #401

Done.

JB

pnaidoo1502 · October 2007

Thanks

Thanks for the help.

Two NI 700, One TP

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