User manual

59
Remote control
(gateway -) router is used. Mostly routers in a local net-
work to be used as gateway have an IP address with a „1
in the last place of the IP address (e.g. 192.168.10.1).
13.1.2 Ethernet Settings
In addition to the USB interface, the interface card inclu-
des an Ethernetinterface.Congurethesettingsinthe
oscilloscope for all necessary parameters after you select
ETHERNET as interface and press the soft menu key PA-
RAMETER. You can specify all parameters and assign a
xedIPaddress.YoucanalsoassignadynamicIPaddress
with the activated DHCP function. Please contact your IT
managementtocon-gurethesettingsproperly.
If the device has an IP address, it can be accessed via web
browser at this IP since the Ethernet interface includes an
integrated web server. Enter the IP address in the location
bar on your browser (http//xxx.xxx.xxx.xx). This opens a
window that includes the device name and type, serial
number and interfaces with technical information and con-
guredparameters.
13.2 USB
The USB interface must be selected in the menu of the os-
cilloscope and requires no further action. The actual USB
driver can be downloaded from the ROHDE & SCHWARZ
homepage for free. If a connection between PC and the
instrument has been established and no R&S®HMO3000
series driver is installed, the operating system answers
with “Found New Hardware”. Only in this case the USB
PC and instrument have to be connected to the same network.
Otherwise a remote connection is not possible.
If DHCP is used and the system cannot assign an IP address to
the R&S®HMO Compact series (for instance, if no Ethernet cable
is connected or the network does not support DHCP), it may take
up to three minutes until a timeout allows the interface to be
congured again.
Fig. 13.1: Ethernet-settings dialog box
The currently available USB driver have been fully tested and
released for Windows XP, VISTA™, Windows 7™ and Windows
8™ (32 + 64 Bit).
driver must be installed. Further information about the
USBdriverinstallationyoucanndintheHO720/HO730/
HO732installationguideinternalofthedriverle.
In addition, you may use the free software HMExplorer.
This Windows application offers the R&S®HMO3000 series
a terminal function, the option to create screenshots and
to sort the measured data storage.
13.3 RS-232 (Option HO720)
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 oscilloscope 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) please refer
tog.13.1.
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:
8-N-1 (8 data bits, no parity bit, 1 stop bit)
RTS/CTS hardware protocol: none.
The RS-232 interface parameters can be set in the SETUP
menu via soft menu key INTERFACE. Please make sure
that the RS-232 soft menu key is blue highlighted. A soft
The following requirement for USB driver installation are
necessary:
1 R&S®HMO3000 series with an activated USB interface.
2 A PC with operating system Windows XP™, VISTA™, Win-
dows 7™, Windows 8™ or Windows 10™ (32 or 64Bit).
3 Administrator rights are necessary for the installation of the
driver. If an error message regarding spelling errors appears,
the rights to install the driver are not given. In this case,
please contact your IT department to obtain the necessary
rights.
Fig. 13.2: Pin assignment of the RS-232 interface
Pin
2 Tx Data (data from oscilloscope to external device)
3 Rx Data (data from external device to oscilloscope)
7 CTS Clear to Send
8 RTS Request to Send
5 ground (reference potential, connected via oscilloscope
(measuring category 0) and power cable to the grounding
conductor
9 +5V supply voltage for external devices (max. 400mA)