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Chapter 2

Function Reference — RTSI_Conn

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 National Instruments Corporation

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NI-DAQ FRM for PC Compatibles

Connects a device to the specified RTSI bus trigger line.

sigCode is the signal code number of the device signal to be connected to the trigger line. 
Signal code numbers for each device type are in the RTSI Bus Trigger Functions section of 
Chapter 3, Software Overview, of the NI-DAQ User Manual for PC Compatibles.

trigLine is the RTSI bus trigger line that is to be connected to the signal.

Range:

0 through 6.

dir is the direction of the connection.

0:

Receive signal (input, receiver) from the RTSI bus trigger line.

1:

Transmit signal (output, source) to the RTSI bus trigger line.

RTSI_Conn

 programs the RTSI interface on the specified deviceNumber such that NI-DAQ 

connects the signal identified by sigCode to the trigger line specified by trigLine. For 
example, if the specified deviceNumber is a non-E Series MIO or AI device, the device 
sigCode is 7, the RTSI trigLine is 3, and the dir is 1, NI-DAQ drives the output produced by 
counter 1 (OUT1) on the specified deviceNumber onto trigger line 3 of the RTSI bus. You 
need to make another call to 

RTSI_Conn

 to program another MIO or AI device (or the same 

device) to receive the OUT1 signal (dir = 0) in order to make use of it.

i16

assigned by configuration utility

i16

signal code number to be connected

i16

RTSI bus trigger line

i16

direction of the connection