Keithley S46 Instruction Manual page 59

3-24 Operation
*CLS — Clear status
Use the *CLS command to clear (set to 0) the bits of the following registers:
•
•
*ESE <NRf> — Event Enable
*ESE? —Event Enable Query
Parameter
Use the *ESE command to program the Standard Event Enable Register. This command is
sent with the decimal equivalent of the binary value that determines the desired state (0 or
1) of the bits in the register. This register is cleared on power-up.
This register is used as a mask for the Standard Event Register. When a standard event is
masked, the occurrence of that event will not set the Event Summary Bit (ESB) in the
Status Byte Register. Conversely, when a standard event is unmasked (enabled), the
occurrence of that event sets the ESB bit. For information on the Standard Event Register
and descriptions of the standard event bits, see the *ESR? command.
A cleared bit (0) in the enabled register prevents (masks) the ESB bit in the Status Byte
Register from setting when the corresponding standard event occurs. A set bit (1) in the
enable register allows (enables) the ESB bit to set when the corresponding standard event
occurs.
The Standard Event Enable Register is shown in
weight of each bit. The sum of the decimal weights of the bits that you wish to be set is the
parameter value that is sent with the *ESE command. For example, to set the CME and
QYE bits of the Standard Event Enable Register, send the following command:
*ESE 36
Where:
S46-901-01 Rev. C / January 2006
Standard event register
Error queue
<NRf> = 0
1
4
8
16
32
64
128
255
CME (bit B5) =
QYE (bit B2) = __4
<NRf> =
S46/S46T Microwave Switch System Instruction Manual
Clear status registers and error queue
Program the standard event enable register
Read the standard event register
Clear register
Set OPC(B0)
Set QYE (B2)
Set DDE(B3)
Set EXE(B4)
Set CME(B5)
Set URQ(B6)
Set PON(B7)
Set all bits
Figure 3-8
32
36
and includes the decimal