Quantum Data 801GC, 801GF, 801GX manual Remote/Local Operation

which may cause the 801G* to induce a service re- quest. For more information about setting up these conditions, see the *SRE common command descrip- tion.

Remote/Local Operation

The 801G* has complete remote/local operation as defined by the IEEE-488.1 standard. All four remote/ local states REMS, LOCS, RWLS and LWLS are sup- ported.

In the remote state (REMS), the 801G* is under re- mote control and messages are processed as received. The remote with lockout state (RWLS) will be en- tered if the controller issues the LLO (local lockout) message to the 801G*. The local state (LOCS) will be entered when the REN line goes false or the con- troller issues the GTL (go to local) message to the 801G*, or a front panel control is actuated.

In the remote with lockout state (RWLS), the 801G* is under complete remote control and front panel controls are disabled. The RWLS state is entered when the controller issues the LLO (local lockout) mes- sage to the 801G*. Front panel access is re-enabled when the controller issues the GTL (go to local) message to the 801G*.

In the local state (LOCS), the 801G* is under local control and all front panel controls are enabled. Any remote messages received will be stored for pro- cessing when the 801G* enters the remote state again. The remote state (REMS) will be entered if the REN line is true and the 801G* is addressed to listen.

In the local with lockout state (LWLS), the 801G* is under local control and all front panel controls are enabled. Any remote messages received will be stored for processing when the 801G* enters the remote state again. The remote with lockout state (RWLS) will be entered if the 801G* is addressed to listen.

6-66 Chapter 6: Programming Model 801GC, 801GF & 801GX¥Rev. A