Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

Messages
ESIB
Messages
The messages transferred via the data lines of the IEC bus or the RSIB interface (see chapter 8) can be
divided into two groups:
– interface messages and
– device messages.
Some control characters are defined for the control of the RS-232-interface (see chapter 8).
IEE/IEEE-Bus Interface Messages
Interface messages are transferred on the data lines of the IEC bus, the "ATN" control line being active.
They are used for communication between controller and instrument and can only be sent by a
controller which has the IEC-bus control. Interface commands can be subdivided into
– universal commands and
– addressed commands.
Universal commands act on all devices connected to the IEC bus without previous addressing,
addressed commands only act on devices previously addressed as listeners. The interface messages
relevant to the instrument are listed in chapter 8.
RSIB Interface Messages
The RSIB interface enables the instrument to be controlled by Visual C++ or Visual Basic programs. The
interface functions are matched to the function interface for IEC/IEEE-bus programming from National
Instruments.
The functions supported by interface are listed in chapter 8.
1088.7531.12 5.6 E-16