Anritsu ML2430A - Manual (Page 73)

a. Read the status register using the equivalent of a GPIB serial poll. Send the
message:
!SPL
Note: There is NO terminator to this message.
The power meter will respond:
Px\n
x is the ASCII character determined by the value in the meter status register.
x = “B” gives a status register value of 01000010 binary. Comparing this with the
status byte description in Section 6-7 of the manual will show that the SRQ and
limits error bits are both set.
b. Alternatively the status register can be read directly using the command:
*STB?\n
This will respond:
Ry\n
y can be up to 3 digits and is the decimal representation of the status register.
y="66" gives a status register value of 01000010 binary. Comparing this with the
status byte description in section 6-7 of the manual will show that the SRQ and
limits error bits are both set.
8. Once the status register has been read, it must be cleared to allow further
SRQ messages to be sent. Before the status register is cleared, further autodial
actions (limits failure or sensor range error) should be disabled to prevent any un-
necessary autodial attempts by the meter when already connected to a remote
PC. To clear the status register, use the command:
*CLS\n
5-11
PROFILE
OPERATION MODE The ML2430A Series Power Meter can be used to view signals in Profile, Read-
out, Power vs. Time and Source Sweep modes. This section describes setting up
and viewing signals in the Profile mode. Profile mode allows the viewing of a sin-
gle channel (1 or 2 as set up in the Channel menu) plotted against time.
5-10 ML2430A OM
PROFILE OPERATION MODE PROCEDURES