Binning Example; Remote Control; Rs-232 - Hameg R&S HM8118 Benutzerhandbuch

Measuring Equipment
Nominal value of the classification:
❙ Enter the nominal value with the number keys and
confirm with the Enter key.
❙ The new value and the associated units will be displayed.
A nominal value for bin 6 is not applicable.
LOW LIMIT (as a percentage of Low Limit):
❙ The bin 6 does not have a relative limit but an absolute
limit instead.
HIGH LIMIT (as a percentage of High Limit):
❙ Automatically, the low limit is set symmetrically.
❙ If an asymmetrical low limit is required, you must first
define the high limit , followed by the low limit.
❙ For the symmetrical limits, only the high limit value must
be selected. The low limit acts as the counterpart to the
upper limit.
8.5.4

Binning Example

PASS/FAIL for a resistance (1 kΩ ±1%, Q
1. Select RQ to measure the resistance in the automatic
range selection mode.
2. Press AUTO/HOLD to freeze the range. Press MENU
and BIN. Activate the binning function now (Binning
Feature).
3. Enter the nominal value (1.000 k) and 1.0 as high limit
value for bin 0. The negative limit will automatically be
set to -1%. Press BIN.
4. Select BIN 6 and enter the range limit (0.0001). Open
the bin (BIN).
Make sure that no other bins are open.
❙ Partial measurements within the defined range will be
moved to bin 0 (Pass BIN).
❙ Partial measurements that do not correspond to the
primary parameters will be moved to bin 7
(General-Failure BIN).
❙ Partial measurements that do not correspond to the
secondary parameters will be moved to bin 6 (Secondary
Parameter Failure BIN).
Control lines for the output are included in the binning in-
terface to receive information about the classification of
the measured components and to allow status requests for
the bridge. A trigger input exists to start the measurement
process. The interface includes 8 control lines for process
sorting bins, sorting bin for failures, general sorting bin for
failures, active measurement and sorting bin data. The in-
terface control lines are open collector outputs and are vol-
tage proof for up to 40 volts. The trigger input responds
to TTL level and triggers with falling slopes. It is protected
against voltages of up to ±15 volts.
For more information on the binning interface in the
context of the PIN and jumper assignment, refer to the
R&S®HO118 manual.
66

9 Remote Control

By default, the LCR bridge HM8118 includes a galvanically
isolated RS-232 and USB interface (R&S®HO820). The in-
strument can optionally be fitted with a GPIB interface
(R&S®HO880) at the factory.
We recommend the installation of or an upgrade to a
R&S®HO820/HO880 installation via factory installation or service
since the measuring instrument has to be opened and the war-
ranty seal must be broken.
All data and signal cables of the instruments galvanically isola-
ted by mass.
9.1

RS-232

The RS-232 interface is built with a 9-pin D-SUB con-
< 0.0001) nector. This bidirectional interface allows measuring in-
strument parameters to be sent from an external instru-
ment (DTE, e.g. a PC with measurement software) to the
HM8118 bridge (DCE), or to be read by the external instru-
ment. It is also possible to send commands and read mea-
surement data via this interface. Please find an overview
of available commands in chapter "Command Reference".
It is possible to establish a direct connection from the PC
(serial port) to the RS-232 interface of the HM8118 bridge
via 9-pin shielded cable (1:1 wired). Only shielded cables
that do not exceed a maximum length of 3m may be used.
RS-232 Pin Assignment (9 Pin)
2
3
7
8
5
Fig. 9.1: Pin assignment RS-232
The baud rate is set to 9600 baud and cannot be modified.
The maximum voltage variation at the TX, RX, RTS and
CTS connections is ±12 volts.
The RS-232 standard parameters for the interface are as
follows:
❙ 8-N-1 (8 data bits, no parity bit, 1 stop bit)
❙ RTS/CTS hardware protocol: None.
Tx Data (data from instrument to PC)
Rx Data (data from PC to instrument)
CTS Clear to Send
RTS Request to Send
Ground (reference potential connected to the
conductor via instrument
(safety class 1) and power cord