PG7000™ OPERATION AND MAINTENANCE MANUAL
© 1998-2008 DH Instruments, a Fluke Company
Page 168
This register can be read using the “*ESR?” query. Each of these status bits can
set the ESB bit of the status byte register, causing a SRQ to occur IF the ESB bit
is enabled to do so. The Standard Event Status Enable Register (“
∗
ESE”
program message) determines which of these flags are able to assert the
ESB bit. The description of these bits are given as:
•
PON
: Power On (Bit 7)
Indicates that the PG7000 power has been cycled since the last time
this bit was read or cleared.
•
URQ
: User Request (Bit 6)
Indicates that PG7000 was set to local operation manually from the
front panel by the user (pressing the ESC key).
•
CMD
: Command Error (Bit 5)
Indicates that a remote command error has occurred. A command
error is typically a syntax error in the use of a correct program message.
•
EXE
:
Execution Error (Bit 4)
Indicates if a remote program message cannot be processed due to
device related condition.
•
DDE
:
Device Dependent Error (Bit 3)
Indicates that an internal error has occurred in PG7000 such as a
transducer time-out.
•
QYE
:
Query Error (Bit 2)
Indicates that an error has occurred in the protocol for program
message communications. This is typically caused by a program
message being sent to PG7000 without reading a waiting reply.
•
RQC
: Request Control (Bit 1)
This bit is not supported as PG7000 cannot become the active
controller in charge.
•
OPC
: Operation Complete (Bit 0)
Indicates that PG7000 has completed all requested functions.
4.5
HIGH LINE DIFFERENTIAL MODE PROGRAMMING
EXAMPLES
High line differential measurement mode is only available with a PG7102 or PG7202 piston gauge
(see Section 3.9.4.2).
4.5.1
RECOMMENDED SEQUENCE FOR A HOST PROGRAM TO
REMOTELY SET A NEW HIGH LINE PRESSURE AND
ENABLE HIGH LINE DIFFERENTIAL MODE
Select the desired piston-cylinder and mass set in the reference and tare PG7000s.
Select the desired pressure unit of measure in which to set the line pressure. Ensure that the
reference PG7000 COM2 port and the tare PG7000 COM1 port have identical configurations
and that a valid RS232 connection is made between them. The line pressure setting process
is sequential, following the same steps as local line pressure setting (see Section 3.9.3.2).
The line setting process can be aborted at any time by sending the “
ABORT
” command.
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