172 Keysight CXG, EXG, and MXG X-Series Signal Generators Programming Guide
Programming the Status Register System
Status Register Bit Values
Status Register Bit Values
Each bit in a register is represented by a decimal value based on its location in
the register (see
).
— To enable a particular bit in a register, send its value with the SCPI
command. Refer to the signal generator’s SCPI command listing for more
information.
— To enable more than one bit, send the sum of all the bits that you want to
enable.
— To verify the bits set in a register, query the register.
Example: Enable a Register
To enable bit 0 and bit 6 of the Standard Event Status Group’s Event Register:
1.
Add the decimal value of bit 0 (1) and the decimal value of bit 6 (64) to
give a decimal value of 65.
2.
Send the sum with the command:
*ESE 65
.
Example: Query a Register
To query a register for a condition, send a SCPI query command. For example,
if you want to query the Standard Operation Status Group’s Condition Register,
send the command:
STATus:OPERation:CONDition?
If bit 7, bit 3 and bit 2 in this register are set (bits = 1) then the query will return
the decimal value 140. The value represents the decimal values of bit 7, bit 3
and bit 2: 128 + 8 + 4 = 140.
Table 4-1
Status Register Bit Decimal Values
Decimal
Value
Al
wa
ys 0
163
84
81
92
40
96
20
48
10
24
51
2
25
6
12
8
64
32
16
8
4
2
1
Bit Number
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit 15 is not used and is always set to zero.
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