Section 4 Initial Setting
4-4
4.1 Initialization of Bus by IFC Statement
■ Format
IFC∆@select-code
■ Application example
IFC @1
■ Explanation
This function can be used when the MS9710C is controlled from a controller via
a GPIB interface bus.
On the GPIB corresponding to the specified select code, the IFC line is activated
for about 100 µs (electrically set at the low level). When IFC@ is executed,
interface functions of all devices connected to the GPIB bus line corresponding to
the specified select code are initialized. Only the system controller can send this
command.
“Initialization of interface functions” refers to the processing in which controller-
set device interface functions (talker, listener, etc.) are reset to their initial states.
Functions marked with √ in the following table are initialized. The function
marked with ∆ is initialized partially.
Initialization by IFC
√
√
√
√
∆
√
Function
Source handshake
Acceptor handshake
Talker or extended talker
Listener or extended listener
Service request
Remote/local
Parallel/poll
Device clear
Device trigger
Controller
No
1
2
3
4
5
6
7
8
9
10
Symbol
SH
AH
T or TE
L or LT
SR
RL
PP
DC
DT
C
If the IFC statement is true (the IFC line is set at the low level through execution
of the IFC@ statement), initialization is not performed at levels 2 and 3. That is,
device operating states are not affected.
IFC @
To Next Page
Loading...
Need help?
General
