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Chapter 9
291
SERIAL 9, 10, and 11
The serial ports are used to input and output serial data for entering programs, printing
tests results and screen images, and sending test results to a connected controller or
terminal.
Operating Considerations
The serial communications settings are defined on the I/O CONFIGURE screen.
SERIAL 9 must be used for serial printing.
The IBASIC controller sends and receives data to the serial ports using address 9 for the
primary port, and 10, 11 for the other ports. For example, to enter data from the primary
serial port into a program variable named SDATA, you could use the following command:
ENTER SERIAL_9;SDATA
To send data from your program out of the primary serial port, you could use the
following command:
OUTPUT SERIAL_9;SDATA
SERIAL 10 can only be configured through GPIB.
SERIAL 11 is reserved for future use with special software that enables remote
operation through a PC.
Figure 9-2 Serial Port Pin Assignments
TRIGGER QUALIFIER IN
This input is active when an external trigger qualifier is selected with the Qual Event
Table 9-1 Serial Port Pin Assignments
Pin Description
1 CD - Carrier Detect
2 RD - Receive Data
3 TD - Transmit Data
4 DTR - Data Terminal Ready
5 Ground
6 DSR - Data Set Ready
7RTS - Request to Send
8 CTS - Clear to Send
9 RI - Ring Indicator
5
1
9
6