User`s manual

112
Chapter 5 Remote Interface Reference
3488 Mode Commands
5
DBW <slot><port>,#I<block data>
Outputs a block of data to the specified digital I/O port. When DBW is
received, the 3499A/B/C will interpret the block of data to be output
according to the slot/port parameters and DMODE (polarity, handshake)
command.
The slot parameter is a decimal ranging from 0 to 9 (mainframe
dependent). Valid slot numbers are:
The port parameter is a number that indicates where the data is to be
read. The port is module dependent and the valid port numbers are shown
below.
In 16-bit mode, block data is interpreted as being the high byte first. In
32-bit mode (port 06), block data is interpreted as being the highest byte
first, then the second highest and so on. The transfer is completed by
setting the GPIB EOI line true concurrently with the last byte of data.
CONTROL 7,16,128
! Set EOI true concurrent
with the last character sent.
DIM A$[30]
IOBUFFER A$
A$ = “CMON 5;DBW 504, #IAS”
! Output a block of data“AS”
to the plug-in DIO (Port 04,
Slot 5).
TRANSFER A$ to 709 INTR
3499A slots 0 through 5
3499B slots 0 through 2
3499C slots 0 through 9
Model Number 4-Bit Port 8-Bit Port 16-Bit Port 32-Bit Port
4-Bit Built-in DIO 090 N/A N/A N/A
44474A 16-Bit DIO N/A s00, s01 s02 N/A
N2263A 32-Bit DIO N/A s00, s01, s02, s03 s04, s05 s06
N2264A Multifunction N/A s30, s31 s32 N/A
N2265A Multifunction N/A s40, s41 s42 N/A