Signal Output

INET configuration

Figure 5•8shows displays resulting from the key sequence:

CLEAR

.

3

ENTER

Switching between Global and Local

With regard to the INET function at the HP 5890, there are two operating modes: global or local. In global mode (default mode),

HP 5890 START and STOP keys, when pressed, affect other devices on the INET loop. In local mode, however, pressing START or STOP at the HP 5890 affects only the HP 5890. A run may be started or stopped at the HP 5890 without affecting other devices on the INET loop.

In local mode, note that the HP 5890 remains part of the INET system; it reports its readiness to the system and pressing START and STOP keys on other devices on the INET loop (e.g., the controller) will affect HP 5890 operation.

Once in CONFIGURE NETWORK, pressing ON or OFF switches, respectively, between global or local mode shows resulting displays as in Figure 5•9.

Figure 5-9

 

ACTUAL

SETPOINT

GLOBAL

ADDR:

8,31

 

ACTUAL

SETPOINT

 

 

 

LOCAL

ADDR:

8,31

INET GLOBAL/LOCAL Displays

An example of where having the HP 5890 in local mode might be useful is in the case of conditioning a column: the HP 5890 may be started or stopped as desired without affecting other devices on the INET loop.

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