AMETEK HPD Series - Manual (Page 34)

Operation
GPIB Operation
32 Operating Manual for GPIB for XT/HPD Series Power Supply
Serial Poll In a serial poll, the controller polls each device.
Example:
The power supply responds with a 8-bit status byte defined as follows:
Table 3.2 Serial Poll Status Register
ibrsp Return serial poll byte.
Bit
Position Decimal
Weight
Description Reset By
0 (LSB) 1 Fault - Set when any bit in the fault
register is set by a fault condition in the
supply. See also
“Accumulated
Status, Status, and Fault Registers”
on page 48
.
FAULT? query to reset
1 2 Not used
2 4 Not used
3 8 Not used
4 16 Ready - Set when power supply is
ready to accept commands. Power supply, during
command processing
period
5 32 Error (ERR) - Set when ERR bit
asserted in status register. See also
“Accumulated Status, Status, and
Fault Registers” on page 48
.
ERR? query or a new
error-free command
6 64 Request Service (SRQ) - Set when
power supply requests service. Serial Poll
7 (MSB) 128 Power On (PON) - Set when unit
initializes at power on. CLR or Device Clear