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Interface Capabilities
The interface capabilities of the HP 16500C, as defined by IEEE 488.1 are
SH1, AH1, T5, TE0, L3, LE0, SR1, RL1, PP0, DC1, DT1, C0, and E2.
Command and Data Concepts
The HP-IB has two modes of operation: command mode and data mode. The
bus is in command mode when the ATN line is true. The command mode is
used to send talk and listen addresses and various bus commands, such as a
group execute trigger (GET). The bus is in the data mode when the ATN line
is false. The data mode is used to convey device-dependent messages across
the bus. These device-dependent messages include all of the commands and
responses found in chapters 10 through 14 of this guide for the mainframe
and the respective Programmer’s Guides for each module installed in the
mainframe.
Talk/Listen Addressing
By using the touchscreen fields in the System Configuration menu, the HP-IB
interface can be placed in talk-only mode by connecting to the printer or in
addressed talk/listen mode by connecting to the controller.
See Also Chapter 3, "Configuring Communications" in the HP 16500C User’s
Reference
Talk-only mode must be used when you want the system to talk directly to a
printer without the aid of a controller. Addressed talk/listen mode is used
when the system will operate in conjunction with a controller. When the
system is in the addressed talk/listen mode, the following is true:
•
Each device on the HP-IB resides at a particular address ranging from 0 to
30.
•
The active controller specifies which devices will talk and which will listen.
Programming Over HP-IB
Interface Capabilities
2–3