Ametek Sorensen Asterion DC ASM, Programming Manual

Page: 77 / 162

M330517-01 Rev C
10-60
Figure 10-1: Protection Condition and Protection Event Register
The SESR (Standard Event Service Register). Masking does not prevent events from
setting bits in the SESR. This facilitates polling as a means of detecting these events,
since the SESR can be polled (read) using the *ESR? command, irrespective of the bits
set or not set in the Standard Event Status Enable Register.
The SCPI Status Byte. Read using either the
*STB? command, or the GPIB serial poll operation.
The SESER (Standard Event Status Enable Register). This
register is read using the *ESE? SCPI query command. This
register is written to using the *ESE <value> command. A “1” in
the appropriate bit location enables that corresponding bit from
the SESR to pass through to the input of the OR gate to be
included in the SESR summary bit (bit 5) in the SCPI Status Byte.
The Service Request Enable Register (SRER).
Used to enable which Status Byte bits can affect the
service request bit. *SRE? reads. *SRE <value> writes.
Seven bit-wise logical AND
operations
Eight bit-wise logical AND
operations
The Protection Enable Register. Readable using the STAT:PROT:ENAB? query
command. Writable using the STAT:PROT:ENAB <value> command. Used to select
what fault events could set a bit in the Fault Register. Certain faults can occur even
if they are not enabled. This is because the Protection Enable Register merely filters
which events are allowed to affect the Fault Register, not whether those events can
occur or not.
Protection Condition Register
–
readable using
STAT:PROT:COND? query command
Fault Register (also called the Protection Event Register).
Readable using the STAT:PROT:EVEN? Query.
command. Bit 21 to 31 are not used.
Bit Hex Value Description
0 0x01 Not Used
1 0x02 Protection Event Flag
2 0x04 Error/Event Queue Message Avail.
3 0x08 Questionable Status (Not Used)
4 0x10 Message Available
5 0x20 Standard Event Status Register
6 0x40 RQS/SS Service Request Bit
7 0x80 Operation Status Flag (Not Used)