Specifications

Messages ZVx
1043.0009.50 3.6 E-15
3.4 Messages
The messages transferred via the data lines of the IEC bus or via the RSIB Interface (see annex A) can
be divided into two groups:
– interface messages and
– device messages.
For the RS-232 interface, no interface messages are defined.
3.4.1 IEC/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/IEEE 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 annex A.
Some control characters are defined for the control of the RS-232-interface (see annex A).
3.4.2 RSIB Interface Messages
The RSIB interface enables the instrument to be controlled by Windows applications. 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 annex A
.