Address selection
Jumper positionsIt is divided into two ranges. The lower range
0x1 0xF (1 15) is seleted if the jumper
is not placed. If the jumper is placed, the upper
address range 0x10 - 0x1F (16-31) is selected.
You have to add 0xF (16) to the value selected
at the rotary switch if the upper address range
is chosen.
RS-232
Instruments: HM8112-3 and HM7044Commands
To control the instrument please use the com-
mands included in its manual.
TTL
Instruments: HM8123, HM8134-3, HM8135,
HM8143, and HM8131-2
The interface card is attached using the 2 sup-
plied self-tapping screws. The enclosure is then
slid back on. When doing so make sure that the
edges of the metal enclosure slide exactly into
the grooves of the plastic covers on the front
and back. After the rear plastic cover has been
replaced and fastened, the unit is again ready
for operation.
All data and signal lines are electrically isolated
from ground.
When the IEEE-488 cable is unconnected, there
is no electrically conductive path to the instru-
ment chassis or the grounded wire of the power
supply!
Address selection
All instruments connected to an IEEE-488 bus
must receive unique device addresses.
The address can be chosen by the rotary switch
next to the IEEE-488 bus interface connector.
The address space includes the addresses from
0x1 to 0x1F (1-31 dec.).
3
Subject to change without notice |