Table of Contents
Advertisement
1256E User Manual
Using the
Synchronous Mode
of Operation
Racal Instruments © 2002
38,44,255,0,94,77
which indicates that port 6 read a value of 38, port 5 read a value
of 44, port 4 read a value of 255, and so on.
When data is read from an enabled output port, the data should
equal
the
last
DIGITAL:OUTPUT command.
The syntax for the synchronous mode commands is shown below:
:DIGital
:SYNChronous
The sequence for using the 1260-114 modules is as follows:
A) Use the DIGITAL:CONFIGURE command to select which
port(s) will be used in the synchronous mode of operation,
and which will be used in the asynchronous mode of
operation.
B) For each port to be used as a synchronous port, determine if
the port will be used as a synchronous input port or a
synchronous output port.
C) For each Synchronous Output Port:
1)
Use the DIGITAL:STATE command to enable the
value
written
to
:STATe <module list> ,
{ ON | OFF |1| 0 }
:DATA <port> , <data list>
:DATA? <port>
:INDex <port list> , <index>
:INDex? <port list>
:POINts <port> ,
<number of points>
:POINts? <port>
:CLEar <port list>
:CLOCk
[:POLarity] <module list> ,
{ NORMal | INVerted }
:CLOCk
[:POLarity]? <module list>
:BUSY
[:POLarity] <module list> ,
{NORMal | INVerted}
:BUSY?
[:POLarity]? <module list>
Digital Module Operation 7-7
that
port
using
the
Advertisement
Table of Contents
