Agilent Technologies 8753ET Guide de l'utilisateur Page 320

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3-10 Chapter 3
GPIB Programming
GPIB Operation
GPIB Requirements
Number of Interconnected Devices:
15 maximum.
Interconnection Path Maximum Cable Length:
20 meters maximum or 2 meters per device (whichever is less).
Message Transfer Scheme:
Byte serial, bit parallel asynchronous data transfer using a 3-line
handshake system.
Data Rate:
Maximum of 1 megabyte-per-second over the specified distances with
tri-state drivers. Actual data rate depends on the transfer rate of the
slowest device connected to the bus.
Address Capability:
Primary addresses: 31 talk, 31 listen. A maximum of 1 talker and 14
listeners can be connected to the interface at given time.
Multiple-Controller Capability:
In systems with more than one controller (such as this instrument), only
one controller can be active at any given time. The active controller can
pass control to another controller, but only the system controller can
assume unconditional control. Only one system controller is allowed.
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