Changing Between Remote And Local Operation; Local State; Local With Lockout State; Remote State - Fluke 5500A Operator's Manual

5-16. Changing between Remote and Local Operation

In addition to local mode (front panel operation) and remote, the 5500A Calibrator can
be placed in a local lockout condition at any time by command of the controller.
Combined, the local, remote, and lockout conditions yield four possible operating states
described as follows.

5-17. Local State

The 5500A Calibrator responds to local and remote commands. This is normal front
panel operation. All remote commands are allowed to execute.

5-18. Local with Lockout State

Local with lockout is identical to local, except the 5500A Calibrator will go into the
remote with lockout state instead of the remote state when it receives a remote
command.

5-19. Remote State

When the 5500A Calibrator is placed in remote, either via RS-232 REMOTE command,
or via IEEE-488 asserting the REN line, it enters the remote state. In the remote state,
the Output Display continues to display the output setting or measurement as in local
operation. The Control Display changes to:
The left side of the Control Display shows information regarding the present output
function. However, front panel operation is restricted to use of the power switch and the
"Go To Local" softkeys. Pressing either of these softkeys, using RS-232 to send the
command LOCAL, or IEEE-488 to send the GTL (Go To Local) message returns the
5500A Calibrator to the local state.

5-20. Remote with Lockout State

When the 5500A Calibrator is placed in lockout, either via RS-232 LOCKOUT
command, or via the IEEE-488 message LLO, the 5500A front panel controls are totally
locked out. In remote with lockout, the Control Display changes to:
The left side of the Control Display shows information regarding the present output
function. However, front panel operation is restricted to use of the power switch. To
return the 5500A Calibrator to the local with lockout state, send the RS-232 LOCAL
command or the IEEE-488 GTL (Go To Local) message and unasserts the REN line.
Changing between Remote and Local Operation
Remote Operation
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