Keithley 2001 Operator's Manual page 167

OR
To Operation
Summary Bit
(OSB) of Status
Byte Register.
(See Figure 4-13).
cáÖìêÉ=QJT
Operation event status
The individual bits of the transition filter registers can be set
or cleared by using the following SCPI commands:
:STATus:OPERation:PTR <NRf>
:STATus:OPERation:NTR <NRf>
The transition filter registers can be read at any time by using
the following SCPI query commands:
:STATus:OPERation:PTR?
:STATus:OPERation:NTR?
Reading a transition filter register using the above query
commands does not affect the contents of the register.
The following operations will set (1) all the bits of the PTR
register and clear (0) all the bits of the NTR register:
1. Cycling power.
2. Sending the :STATus:PRESet command.
3. Sending the :STATus:OPERation:PTR
:STATus:OPERation:NTR 0 commands.
2001-900-01 Rev. K/ August 2010
From OR'ed summary of
Arm Event Status (see
Figure 4-8).
Idle Calc
(B15 - B11) (B10) (B9) (B8)
Idle Calc
(B15 - B11)
(B10) (B9) (B8)
Idle Calc
(B15 - B11)
(B10) (B9) (B8)
&
&
Idle Calc
(B15 - B11) (B10) (B9) (B8)
Idle = Idle
Calc = Calculating
Arm = Waiting in an Arm Layer
Trig = Waiting in Trigger Layer
Set = Settling
Cal = Calibrating
65535 and
From OR'ed summary
of Trigger Event Status
(see Figure 4-10)
Arm Trig
(B7) (B6) (B5) (B4) (B3) (B2)
Arm Trig
(B6) (B5) (B4) (B3)
(B7) (B2)
Arm Trig
(B4) (B3)
(B7) (B6) (B5) (B2)
&
&
Arm Trig
(B7) (B6) (B5) (B4) (B3) (B2)
& = Logical AND PTR = Positive Transition Filter
NTR = Negative Transition Filter
OR = Logical OR
register whose bits are set by the Operation Condition Reg-
ister and Transition Filter. Once a bit in this register is set, it
will remain set (latched) until the register is cleared by a spe-
cific clearing operation. The bits of this register are logically
ANDed with the bits of the Operation Event Enable Register
and applied to an OR gate. The output of the OR gate is the
Operation Summary Bit (OSB) that is applied to the Status
Byte Register. The following SCPI query command can be
used to read the Operation Event Register:
:STATus:OPERation?
Reading this register using the above SCPI command clears
the register. The following list summarizes all operations
that will clear the Operation Event Register:
1. Cycling power.
2. Sending the *CLS common command.
3. Sending the
command.
grammed by the user and serves as a mask for the Operation
IEEE-488 Reference
Operation Condition
Set Cal
Register
(B1) (B0)
Set Cal
PTR Transition
NTR Filter
(B1) (B0)
Operation Event
Set Cal
Register
(B0)
(B1)
&
&
Operation Event
Set Cal
Enable Register
(B1) (B0)
 This is a latched, read-only
:STATus:OPERation:EVENt?
 This register is pro-
query
4-9