ta ble
num ber: 1 to number of ta bles sup ported by the sen sor type
F for the fac tory de fault table
Re marks: This command outputs the cal factor table in binary mode in the
following form:
CFURD<space><length of bi nary data>,<bi nary data>
<length of bi nary data>: To tal length of the bi nary data mes sage, in
bytes, af ter the comma.
<bi nary data>: Made up of :
a. 8 bytes; 7 for the iden tity, plus a NULL ter mi na tor
b. 2 bytes rep re sent ing the num ber of ta ble pair en tries
c. The cal fac tor ta ble data in bi nary form. The bi nary data is out put in
en tries which are fre quency/fac tor pairs of six bytes. The fre quency is
held in 32768e-6LONG for mat and the cal fac tor in 1024INT for mat.
To con vert these into real num bers the first four bytes of an en try are
read into a LONG vari able, cast to a float and then di vided by 32768e-6
to give a fre quency. The last two bytes are then read into the low bytes
of a LONG then cast to a float and di vided by 1024. The C pro gram -
ming ex am ple 'Bi nary out put de cod ing' on page 6-136 shows how to ex -
tract the bi nary data.
This mes sage can be ma nip u lated to pro gram a dif fer ent ta ble us ing the
CFULD com mand.
CFUSAV Cal fac tor ta ble save
SEN SOR
Syn tax: CFUSAV
Re marks: This command saves the cal fac tor ta ble cur rently be ing ed ited to the
ap pro pri ate sen sor. Proc ess ing may take a cou ple of sec onds. Any
command that can select a new sensor and/or cal fac tor table for
changing, will not automatically save any previous changes made. It is
the users re spon si bil ity to issue a CFUSAV com mand.
CFUSEL Se lect cal fac tor ta ble
SEN SOR
Syn tax: CFUSEL <s>,<ta ble number>
s: A or B
ta ble
number: ta ble number or com bi na tion to use
0 = fac tory de fault ta ble
1 to 10 = user ta ble be ing used
11 to 20 = fac tory ta ble + user ta ble be ing used
6-26 ML2400A OM
ML24XXA NATIVE COMMANDS GPIB OPERATION
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