Remote Control
R&S
®
ESR
559
User Manual 1175.7068.02 ─ 12
RSIB Interface Functions
The library functions are adapted to the interface functions of National Instruments for
GPIB programming. The functions supported by the libraries are listed in the following
table.
Function
Description
RSDLLibfind()
Provides a handle for access to a device.
RSDLLibwrt()
Sends a zero-terminated string to a device.
RSDLLilwrt()
Sends a certain number of bytes to a device.
RSDLLibwrtf()
Sends the contents of a file to a device.
RSDLLibrd()
Reads data from a device into a string.
RSDLLilrd()
Reads a certain number of bytes from a device.
RSDLLibrdf()
Reads data from a device into a file.
RSDLLibtmo()
Sets timeout for RSIB functions.
RSDLLibsre()
Switches a device to the local or remote state.
RSDLLibloc()
Temporarily switches a device to the local state.
RSDLLibeot()
Enables/disables the END message for write operations.
RSDLLibrsp()
Performs a serial poll and provides the status byte.
RSDLLibonl()
Sets the device online/offline.
RSDLLTestSrq()
Checks whether a device has generated an SRQ.
RSDLLWaitSrq()
Waits until a device generates an SRQ.
RSDLLSwapBytes
Swaps the byte sequence for binary numericdisplay (only required for
non-Intel platforms).
Telnet Protocol
As an alternative to remote control the instrument can use a simple telnet protocol (port
5025). Unlike using the VXI-11 protocol, no VISA installation is necessary on the
remote controller side. This protocol is sometimes also referred to as "socket communi-
cation" or "Raw Ethernet mode". To control the instrument, only a Telnet program is
required. The Telnet program is part of every operating system.
11.1.1.4
GPIB Interface (IEC 625/IEEE 418 Bus Interface)
To be able to control the instrument via the GPIB bus, the instrument and the controller
must be linked by a GPIB bus cable. A GPIB bus card, the card drivers and the pro-
gram libraries for the programming language used must be provided in the controller.
The controller must address the instrument with the GPIB bus address (see
Notes and Conditions
In connection with the GPIB interface, note the following:
Remote Control - Basics
