Programming instructions

Programming the Status Register System
Status Register Bit Values
Chapter 3104
Status Register Bit Values
Each bit in a register is represented by a numerical value based on its location (see Table 3-1).
• To enable a particular bit, send its value with the command.
• To enable more than one bit, send the sum of all the bits that you are interested in.
• A query returns the sum of all bits that are true.
Example: Enable Bit 0 and Bit 6 of *ESE
1. Add the value of bit 0 (1) and the value of bit 6 (64).
2. Send the sum with the command: *ESE 65.
Example: STATus:OPERation:CONDition? Command Returns Decimal Value of 140
140 = 128 + 8 + 4
In this case bit 7 is true, bit 3 is true, and bit 2 is true.
NOTE Bit 15 is not used to report status and is therefore set to zero.
Table 3-1 Status Register Bit Decimal Values
Decimal
Value
Always 0
16384
8192 4096 2048 1024
512 256 128
64 32 16
8 4 2 1
Bit Number1514131211109876543210