Measurement Computing DAQFlex User Guide - Manual (Page 66)

DAQFlex Software User's Guide DAQFlex Message Reference – Programming messages – DIO
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value IN, OUT
Example "DIO{0}:DIR=IN"
Note For devices that support this message, the default power up value is "IN".
 Get the direction of a port.
Message
"?DIO{port}:DIR"
Response "DIO{port}:DIR=value"
port The port number.
value IN, OUT, or a number between 0 and 2n -1, where n is the number of bits
in the port.
Note If the digital bits are not individually configurable, the value returned is either "IN" or
"OUT."
If each digital bit is individually configurable, value is a bit mask, in which 1 indicates
that the bit is configured for input, and 0 indicates that the bit is configured for
output.
 Set the direction of a bit.
Message
"DIO{port/bit}:DIR=value"
Response "DIO{port/bit}:DIR"
port The port number.
bit The bit number.
value IN, OUT
Example "DIO{0/1}:DIR=IN"
Note For devices that support this message, the default power up value is "IN".
 Get the direction of a bit.
Message
"?DIO{port/bit}:DIR"
Response "DIO{port/bit}:DIR=value"
port The port number.
bit The bit number.
value IN, OUT
Example "?DIO{0/1}:DIR"
LATCH
LATCH applies to programmable ports. This property lets you set a digital output value while in input
mode. When programmed for output mode the latch value will be at the output.
 Set the latch value of a port.
Message
"DIO{port}:LATCH=value"
Response "DIO{port}:LATCH"