User manual
57
Remote control
the soft menu key VALUE and the universal knob allow
you to set the value for the respective byte. If the input is
hexadecimal, only the entire byte can be set to X. Use the
soft menu key BYTE to toggle between bytes.
❙ ID AND DATA: The soft menu IDENTIFIER AND DATA
and the soft menu key IDENTIFIER SETUP include the
same settings as the soft menu IDENTIFIER. The soft
menu DATA SETUP allows you to specify the data bit
pattern or HEX values for up to 8 bytes. Available
comparisons for address and data values are EQUAL and
NOT EQUAL.
Press the MENU OFF button several times to close all me-
nus, and the oscilloscope will trigger on the set data. For
measurements without measuring object please refer to
chapter 12.2.2.
13 Remote control
By default, the R&S®HMO3000 series includes an Ether-
net/USBinterface.Youcanndthedrivers for this inter-
face on the product CD enclosed with the instrument or on
the ROHDE & SCHWARZ Homepage.
To achieve external control, the R&S®HMO3000 series
uses the scripting language SCPI (= Standard Commands
for Programmable Instruments). The provided Ethernet/
USB dual interface (optional USB/RS232 or IEEE-488 GPIB)
enables you to control the ROHDE & SCHWARZ
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 the ROHDE
& SCHWARZ homepage.
13.1 Ethernet
For the direct connection with a host (PC) or indirect
connection over a SWITCH, a doubly protected network
cable (e.g. CAT.5, CAT.5e, CAT.5+, CAT.6 or CAT.7) is re-
quired, equipped with an Ethernet plug type the RJ-45 at
each end. Either an uncrossed or a crossed network cable
(cross over cable) can be used.
13.1.1 IP networks (IP – Internet protocol)
In order that two or several network elements (e.g. measu-
ring instruments, host/PC‘s, …) can communicate over a
network with one another, some fundamental connections
have to be considered, so that data communication is error
free and unimpaired.
For each element in a network an IP address has to be as-
signed, so that they can exchange data among themselves.
IP addresses are represented (with the IP version 4) as four
decimal numbers separated by points (e.g. 192.168.15.1).
Each decimal number is represented by a binary number
of 8 bits. IP addresses are divided into public and private
address ranges. Public IP addresses will be able to route
by the Internet and an Internet service Provider (ISP) can
to be made available. Public IP addresses can be reached
directly over the Internet to directly exchange internet data.
Private IP addresses are not routed by the Internet and
are reserved for private networks. Network elements with
private IP addresses cannot be reached directly over the
Internet so no data can be directly exchanged over the In-
ternet. To allow network elements with a private IP address
to exchange data over the Internet, they require a router
for IP address conversion (English NAT; Network address
translation), before connection to the Internet. The attached
elements can then data exchange over this router, which
To enable communication, the selected interface and the respec-
tive settings in the measuring instrument must be identical to the
selections for the PC.