Hameg Instruments HO88 Manual De Instrucciones página 18

Addressed messages
These commands are received by only a single device, which is addressed.
GTL
Go To Local
SDC
Selected Device Clear
PPC
Parallel PolI Configure
GET
Group Execute Trigger
TCT
Take Control
Universal (unaddressed) messages
These commands are received by all devices on the bus that have Listener capability.
LLO
Local Lockout
DCL
Device Clear
PPU
Parallel Poll Unconfig.
SPE
Serial Poll Enable
SPD
Serial Poll Disable
Secondary commands
These are used to transfer the parallel poll byte following PPC, for clearing the parallel
poll status bits returned by polled instruments, and for transmitting secondary
addresses following the talk or listen primary address of a device.
PPE
Parallel Poll Enable
PPD
Parallel Poll Disable
SCG
Sec. Comm. Group
The IEEE-488 bus interface H088
The test instruments of the HAMEG Series HM8100 have all been designed to permit
their use in automated testing environments. In order to connect them to an IEEE488
bus, the interface HO88 (option) is required. Series HM8100 instruments equipped
with the IEEE488 bus interface comply with the stipulations of the IEC-625-1 and
IEEE-488 standards. If the HO88 interface is ordered together with the a HM 81 ..
instrument, it is installed within it at the factory. The HO 88 interface is also available
as a separate option for retrofitting purposes at a later time.
Software service
For operation of the Series 8100 instruments, HAMEG will be issuing software at
irregular intervals. This software will be supplied free of charge-to the owners of these
instruments. In addition, updates of the firmware contained in the instruments will be
provided in the form of new EPROMs at cost price. In order to- benefit from this
software service, it is sufficient to register by sending in your name and address and
the serial number of-your HAMEG instrument.
Installation
An HM 81 .. instrument can be easily and unproblematically retrofitted by the user
with the H088 Interface. The first step is to remove the instrument enclosure. To do
18
Switches to local
(manual) operation
Initializes an instrument
Transmits the parallel poll byte (followed by PPE)
Activates a device function
Passes control to another controller
Prevents manual operation
Initializes instruments
Removes parallel pollstatus
Initiates serial poll
Terminates serial poll
Defines parallel poll byte
Clears parallel poll byte
For transfer of a secondary address after TAG or LAG
Änderungen vorbehalten / Subject to change without notice