R&S AFQ100A Operating Manual page 257

R&S AFQ100A
IEC/IEEE-Bus Interface Functions
Instruments which can be remote controlled via the IEC/IEEE bus can be equipped with different
interface functions. The following table lists the interface functions appropriate for the instrument.
Control character Interface function
SH1 Handshake source function (source handshake), full capability
AH1 Handshake sink function (acceptor handshake), full capability
L4 Listener function, full capability, unaddress if MTA.
T6 Talker function, full capability, ability to respond to serial poll, unaddress if MLA
SR1 Service request function (Service Request), full capability
PP1 Parallel poll function, full capability
RL1 Remote/Local switch over function, full capability
DC1 Reset function (Device Clear), full capability
DT1 Trigger function (Device Trigger), full capability
C0 No controller function
Table 5-6 IEC/IEEE Bus Interface functions
IEC/IEEE Bus Messages
Interface messages are transferred on the data lines of the IEC/IEEE bus when the "ATN" control line is
active (LOW). They are used for communication between controller and instruments and can only be
sent by the controller which currently has control of the IEC/IEEE bus.
1401.3084.32
Remote Control Hardware Interfaces
5.34 E-3