Section 5
OM6530-C1-00
19 November, 2019
5-8
Front panel operation is restricted to the use of the
<remote>
key. Pressing the
<remote>
key or sending the GTL (Go To Local) interface message returns the 6530 to the local
state.
5.4.6.
REMOTE WITH LOCKOUT
The remote with lockout state can be entered from remote or local with lockout, but not
directly from local. Remote with lockout is similar to the remote state but restricted: the
<remote>
key will not return to the local state. To return the 6530 to the local state the
controller must send a GTL interface command. To return the 6530 to the local state the
controller must unassert the REN control line. Table 5-4 summarizes the possible
Remote/Local state transitions.
From
To
IEEE-488 Interface
Command
RS-232C Interface
Command
Local
Remote
MLA + REN
REMOTE
Remote / Lockout
LLO + REN
LOCKOUT
Remote
Local
GTL
LOCAL
Remote / Lockout
LLO + REN
LOCKOUT
Table 5-4 : Remote/Local State Transitions