![background image](http://html2.mh-extra.com/html/keithley/2308/2308_user-manual_3948247128.webp)
7-10
Return to
Section Topics
2308-900-01 Rev. A / July 2008
Section 7: Status Structure
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
•
Bit B4, current limit tripped #1 (CLT1)
- Set bit indicates that the battery channel’s (#1)
output has turned off due to a current limit trip condition. This bit clears when the output is
turned back on (battery channel only - for the charger channel, see Bit 8).
•
Bit B5, heat sink shutdown (HSS)
- This bit indicates that the output has turned off due to
the output stage heat sink overheating.
•
Bit B6, power supply shutdown (PSS)
- This bit indicates that the output has turned off
due to the main AC/DC power supply heat sink overheating.
•
Bit B7, current limit #2 (CL2) -
Set bit indicates that the charger channel’s (#2) output is in
current limit. This bit clears when the instrument is no longer in current limit (charger
channel only - for the battery channel, see Bit 3).
•
Bit B8, current limit tripped #2 (CLT2)
- Set bit indicates that the charger channel’s (#2)
output has turned off due to a current limit trip condition. This bit clears when the output is
turned back on (charger channel only - for the battery channel, see Bit 4).
Figure 7-4
Operation event status
Measurement event status
The used bits of the measurement event register (shown in
Figure 7-5
) are described as follows:
•
Bit B3, reading overflow #1 (ROF1)
- Set bit indicates that the battery channel’s (#1)
reading exceeds the measurement range of the instrument (battery channel only - for the
charger channel, see Bit 6).
•
Bit B4, pulse trigger timeout #1 (PTT1)
- Set bit indicates that a battery channel (#1)
current pulse has not been detected. This bit applies to pulse current and long integration
functionality (battery channel only - for the charger channel, see Bit 7).
•
Bit B5, reading available #1 (RAV1)
- Set bit indicates that a battery channel (#1) reading
was taken and processed (battery channel only - for the charger channel, see Bit 8).
PSS
CLT1
CL1
___
(B6)
(B5)
(B4)
(B3)
OR
&
&
&
:CONDition?
[:EVENt]?
To OPC Bit
of Status Byte
Register
:ENABle <NRf>
:ENABle?
Decimal Weights
PSS = Power Supply Shutdown
CLT = Current Limit Tripped
& = Logical AND
OR = Logical OR
PSS
CLT1
CL1
(B6)
(B5)
(B4)
(B3)
PSS
CLT1
CL1
(B6)
(B5)
(B4)
(B3)
64
16
8
(2
6
)
(2
4
)
(2
3
)
CL = Current Limit
Operation Condition
Register
Operation Event
Register
Operation Event
Enable Register
(B2)
___
(B2)
___
(B2)
(B1)
(B1)
(B1)
VPT1
(B0)
(B0)
(B0)
VPT1
VPT1
VPT2
VPT2
VPT2
___
2
(2
1
)
&
&
HSS
HSS
HSS
&
(B15-B9)
___
(B15-B9)
___
(B15-B9)
___
___
32
(2
6
)
128
(2
7
)
256
(2
8
)
CL2
(B7)
CLT2
(B8)
CL2
(B7)
CLT2
(B8)
CL2
(B7)
CLT2
(B8)
&
&
4
(2
2
)
HSS = Heat Sink Shutdown
VPT = Voltage Protection Tripped
Summary of Contents for 2308
Page 2: ......
Page 12: ...This page left blank intentionally...
Page 32: ...This page left blank intentionally...
Page 106: ...This page left blank intentionally...
Page 140: ...This page left blank intentionally...
Page 208: ...This page left blank intentionally...
Page 220: ...This page left blank intentionally...