Addressing A Message - Philips System 21 Quick Operating Manual

4. ADDRESSING A MESSAGE
Any message to System 21 is of course preceded by the IEEE/IEC address set on
the master unit.
Example:
IEC PRINT #11,"message"
or
OUTPUT 711; " message"
using P2000C
using HP85
sends the " message" to System 21 with IEEE/IEC address 11.
The routing of this message (to the master or to one of the slave units) is indicated
by the first element of the message, the " unit address".
This unit address is:
"AID" for the master (Additional Instrumentation Devices).
"AID " +3digits for the slave units.
These 3 digits consist of the last two digits of the type number of the unit + 1 digit
set on the unit address switch.
Separation between unit address and the following commands is " ;" or ", ". If more
than one command is sent in one string, the individual commands have to be
separated by commas.
Examples:
Message
Description
"AID;command" routes a "command" to the master routes the two
''AID203;command,command'' commands to the unit PM2120 with address switch
set to 3
5