powerDownPort - power down and isolate an instrument port

powerDownPort portName

The powerDownPort utility is used to power down and isolate an instrument port that does not have an instrument service running on it. It can be used in conjunction with powerUpPort to communicate directly with an instrument using a third party communications utility (e.g. minicom) while the SIAM application is running. The powerUpPort and powerDown utilities can also be used with the puck utilities to re-write a puck in system while the application is running. The utility is used as follows,

$ powerDownPort sidearm6 /dev/ttySX3

or

$ powerDownPort localhost 3

This utility may be run on the same host as the node, or on any networked host from which the node host is accessible.

The following environment variables must be set:

• JAVA_HOME - location of Java installation, e.g. /j9 or /opt/java/jdk1.3.1
• JAVA - name of the JVM. E.g. on a Sidearm, JAVA should be set to j9. On a workstation with Sun's Java installed, JAVA could be set to java.
• SIAM_HOME - top of the SIAM directory tree
• SIAM_CLASSPATH - on a Sidearm, SIAM_CLASSPATH should be set to SIAM_CLASSPATH=$JAVA_HOME/lib/jclMax/classes.zip:$JAVA_HOME/lib/prsnlmot.jar:$JAVA_HOME/lib/RXTXcomm.jar:$SIAM_HOME/classes:$SIAM_HOME/jars/log4j-1.2.8.jar .  On X86 system, SIAM_CLASSPATH should be set to $SIAM_HOME/classes;$SIAM_HOME/jars/RXTXcomm.jar;$SIAM_HOME/jars/log4j-1.2.8.jar

SEE ALSO

 powerUpPort