IEEE 488 Addressing
An IEEE 488 address can take values from 0 to 30.
When supplied from the factory, power supply’s GPIB address is 5.
An IEEE 488 device has a Listen address and a Talk address. Listen address
and Talk address bytes are different.
Listen address is defined by adding decimal value of 32 to the address.
Talk address is defined by adding decimal value of 64 to the address.
Decimal value of 31 is a special address value. Listen address byte has the
value of 63 decimal (31 + 32 = 63 decimal). This is a special address byte,
called Unlisten (UNL). This address byte is sent by the Controller before
assigning new Listeners. It tells to the currently assigned Listeners to stop
listening.
For decimal value of 31, Talker address byte has the value of 95 (31 + 64 =
95). This is a special address byte, called Untalk (UNT). This address byte is
sent by the Controller and it tells to the currently addressed Talker to stop being
a Talker, because a new Talker will be assingned.
This power supply has no secondary address implemented.
To Next Page
Loading...
Need help?
General
