Rohde & Schwarz R&S SGS100A - Advanced Remote Control Using Pcie; Setting up a Remote Control Connection Via Pcie

Network operation and remote control
R&S
®
SGS100A
186User Manual 1173.9105.02 ─ 13
12.3 Advanced remote control using PCIe
The PCIe bus is a high-speed serial bus, composed of point-to-point serial links. A pair
of serial links, one transmitting and one receiving link, make up a lane.
Fast settings
The PCIe interface can be utilized not only to transfer text messages, e.g., SCPI com-
mands but also to carry register based remote control messages. The latter mode is
called fast settings mode. The specially for this purpose provided instrument's driver is
mandatory for the instrument control with fast settings. This instrument driver contains
special functions for fast setup.
To use the advantage of the fast settings, the following prerequisites must be fulfilled:
●
Using the PCIe interface is mandatory (see also Chapter 12.3.1, "Setting up a
remote control connection via PCIe", on page 186)
●
The fast settings must be enabled with the function rssgs_useFastSettings
(see also Chapter 12.3.5, "Enabling fast settings", on page 190).
The instrument driver automatically uses the fast settings method whenever possible -
currently only for the parameters frequency, level, RF state, modulator state - and
sends SCPI messages in all other cases.
Remote control programs written for PCIe will, without modifications, also run if one of
the other control channels, LAN or USB is used.
12.3.1 Setting up a remote control connection via PCIe
To set up a remote control connection vie PCIe, perform the following steps:
1. Download the drivers: See 12.3.2.
2. Configure the controller: See 12.3.3
Advanced remote control using PCIe