The instrument will go into the remote mode when the return
After the return key is pressed, the instrument will return to
key is pressed the second time.
the local and talker idle states.
3.9.2 IFC (Interface Clear)
3.9.3 LLO (Local Lockout)
The IFC command is sent by the controller to place the Model
The LLO command is used to remove the instrument from the
617 in the local, talker and listener idle states. The unit will
local operating mode. After the unit receives LLO, all its front
respond to the IFC command by cancelling front panel TALK panel controls except POWER will be inoperative. REN must
or LISTEN lights. if the instrument was previously placed in
be true for the instrument to respond to LLO. REN must be
one of those modes.
set false to cancel LLO.
To send the IFC command, the controller need only set the
To send the LLO command, the controller must perform the
IFC line true for a minimum of 100~sec.
following steps:
1. Set ATN true.
HP-85 Programming Example-Before demonstrating the 2. Place the LLO command on the data bus
IFC command, turn on the TALK indicator with the follow-
ing statements:
REMOTE 727 (END LINE)
ENTER 727;A$ (END LINE)
HP-85 Programming Example-The LLO command is sent
by using the following HP-85 statement:
REMOTE 7 (END LINE)
At this point, the REMOTE and TALK lights should be on.
LOCAL LOCKOUT 7 (END LINE)
The IFC command can be sent by typing in the following
statement into the HP-85: After the second statement is entered, the instrument’s front
ABORT10 7 (END LINE)
After the END LINE key is pressed, the REMOTE and TALK
lights will turn off, indicating that the instrument has gone in-
to the talker idle state.
Model 8573 Proarammina Example-Place the instru-
ment in the remote-and talkeractive slates with the following
statements:
V% =l:CALL IBSRE(BRDO%,V%) (return)
CMD$=CHR$(&H5B):CALL IBCMD(BRDO%,CMD$)
bfum)
panel controls will be locked out.
Model 8573 Programming Example-To send the LLO
command from the IBM-PC, type in the following statement:
V% =l: CALL IBSRE (BRDO%, V%) (RETURN)
CMD$=CHR$(&Hll):CALL IBCMD$(BRDO%,CMD$)
(return)
After the return key is pressed, Model 617 front panel con-
trols will be locked out.
3.9.4 GTL (Go To Local) and Local
After the return key is pressed the second time, the instrument
should be in the remote and talker active states, as indicated
The GTL command is used to take the instrument out of the
by the respective indicators.
remote mode. With some instruments, GTL may also cancel
LLO. With the Model 617, however, REN must first be placed
false before LLO will be cancelled.
To send IFC, enter the following statement into the IBM-PC:
CALL IBSIC(BRDO%) (return)
To send GTL, the controller must perform the following se-
quence.
3-14
To Next Page
Loading...
Need help?
General
