Remote Operation - Hameg HMP Series User Manual

This includes instrument information such as type classifi-
cation, firmware version and version of the channel
firmware. Use the left arrow key to return to the previous
menu level.
If all the channels do not have the same firmware, a firmware
update will be required.
5 .3 . 1 3 Reset Device
Activate the menu RESET DEVICE by pressing the knob.
This menu item allows you to reset the instrument to its
original condition (factory settings). All selected instrument
settings will be erased.
6 Remote
Operation
By default, the HMP series includes a HO720 USB/RS-232
interface. You can find the drivers for this interface on the
product CD enclosed with the power supply or at http://
www.hameg.com.
To establish an initial communication, you require a serial
cable (1:1) and any terminal program such as Windows
HyperTerminal, which is included in any Windows operat-
ing system. Please find a detailed description to establish
the initial communication via Windows HyperTerminal in
our Knowledge Base at http://www.hameg.com/hyperter-
minal.
The LED for the Remote key is illuminated in white (= ac-
tive), if communication to the instrument has been estab-
lished via interface (Remote Control). To return to the local
operating mode (Local Control), press the Remote key
again, provided that the instrument has not been locked
out from local operation via interface (Local lockout). If lo-
cal operation is locked, the instrument cannot be operated
via front panel keys. With firmware version version 2.0 and
higher, it is also possible to use the Mixed operating mode,
which allows the simultaneous front and remote use.
To achieve external control, the HMP2020 / 2030 uses the
scripting language SCPI (= Standard Commands for Pro-
grammable Instruments). The provided USB/RS232 dual
interface (optional Ethernet/USB or IEEE-488 GPIB) enab-
les you to control the HAMEG instrument externally via
remote connection (remote control). As a result, you can
access nearly all functions that are available during the
manual operating mode via front panel. To download a
PDF document with a detailed list of supported SCPI
commands, please visit www.hameg.com.
To enable communication, the selected interface and the respec-
tive settings in the measuring instrument must be identical to
the selections for the PC.
6 . 1 RS-232
The RS-232 interface is built with a 9-pin D-SUB connec-
tor. This bidirectional interface allows the transfer of setup
parameters, data and screenshots from an external device
(e.g. PC) to the power supply or vice versa. It is possible to
establish a direct connection from the PC (serial port ) to
the interface via 9-pin shielded cable (1:1 wired). The maxi-
mum length must not exceed 3 m. The pin assignment for
the RS-232 interface (9-pin D-SUB connector) is specified
as follows:
The maximum voltage variation at the Tx, Rx, RTS and CTS
connections is ±12 Volt. The RS-232 standard parameters
for the interface are as follows:

Remote Operation

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