Signal Output
Instrument network (INET)
Except for the controller, each instrument handles setpoints for instrument(s) other than itself only as blocks of data to be transmitted, but not altered.
Active workspace
Each device in an INET loop provides storage area for its own setpoints and parameters. These individual storage areas (each containing setpoints and parameters for the specific instrument) are also available to any other device in the loop. For example, the controller may access them for listing and/or storage.
HP 5890 INET states
At the HP 5890, when a part of INET, the RUN LED provides indication of INET status:
CIf the RUN LED is off, the INET system is in its idle state, waiting for initiation of some action (e.g., starting a run, listing information, etc). In this state, the HP 5890 NOT READY LED is turned on if the
HP 5890 is not ready, and/or if the INET system itself is not ready (e.g., if a device on the loop is busy). A message SYSTEM NOT READY will appear on the HP 5890 if some other device on the INET loop reports not ready, and the HP 5890 is itself ready.
CLEAR
may be pressed to display things that are not ready.
CIf the RUN LED is blinking, the INET system is in pre•runor post•runoperation (e.g., a sampler cycling, a report in progress, etc).
In addition, either SYSTEM IN 
CLEAR
is pressed. The NOT READY LED is on only if the HP 5890 itself is not ready.
CIf the RUN LED is on, a run is in progress. The NOT READY LED is turned on only if the HP 5890 itself should become not ready.
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