12-2
Digital I/O Port, Interlock, and Output Configuration
Digital I/O port
The SourceMeter has a digital input/output port that can be used to control external digital
circuitry, such as a handler that is used to perform binning operations when testing limits.
Port con
fi
guration
The Digital I/O Port is located on the rear panel and is shown in Figure 12-1. Note that a
standard male DB-9 connector is used for the Digital I/O port.
NOTE
The four digital output lines and the SOT line are primarily intended for limit testing
with a device handler. See “Limit testing” in Section 11 for details on performing
limit tests and interfacing to handlers and “Triggering” in Section 10 for informa-
tion on programming the SourceMeter to respond to the SOT (start-of-test) pulse
from a handler.
Digital output lines
The port provides four output lines and one input line. Each open-collector output can be set
high (+5V) or low (0V). Each output line can source up to 2mA or sink up to 500mA. When
using a category register handler for limit testing, output line #4 is typically used for the EOT
(End-of-Test) or BUSY pulse. This pulse from the SourceMeter signals the handler to perform
the binning operation, or indicates a busy condition. (See Section 11,
Configuring limit tests
.)
SOT line
The input line (SOT) is used by the handler to start limit testing. With the
↓
STEST arm
event selected, the handler must pulse SOT low in order to provide event detection which starts
the testing process. With the
↑
STEST arm event selected, the handler must pulse SOT high in
order to provide event detection and start the testing process. With the
↑↓
STEST arm event
selected, the handler must pulse SOT either high or low in order to provide event detection and
start the testing process.
ONLY.
ONLY.
D RATING.
D RATING.
INTERLOCK-
DIGITAL I/O
SourceMeter
1
5
6
9
1 = Digital Output #1
2 = Digital Output #2
3 = Digital Output #3
4 = Digital Output #4 (EOT, /EOT, BUSY, /BUSY)
5 = Ground
6 = Trigger Input (SOT)
7 = +5V
8 = /Interlock
9 = Ground
Figure 12-1
Interlock and
digital I/O port
Summary of Contents for 6430
Page 26: ......
Page 32: ......
Page 78: ...2 14 Connections ...
Page 98: ...3 20 Basic Source Measure Operation ...
Page 138: ...5 30 Source Measure Concepts ...
Page 156: ...6 18 Range Digits Speed and Filters ...
Page 168: ...7 12 Relative and Math ...
Page 176: ...8 8 Data Store ...
Page 202: ...9 26 Sweep Operation ...
Page 248: ...11 22 Limit Testing ...
Page 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Page 418: ...17 108 SCPI Command Reference ...
Page 450: ...18 32 Performance Verification ...
Page 477: ...A Specifications ...
Page 489: ...B StatusandErrorMessages ...
Page 498: ...B 10 Status and Error Messages ...
Page 499: ...C DataFlow ...
Page 503: ...D IEEE 488BusOverview ...
Page 518: ...D 16 IEEE 488 Bus Overview ...
Page 519: ...E IEEE 488andSCPI ConformanceInformation ...
Page 523: ...F MeasurementConsiderations ...
Page 539: ...G GPIB488 1Protocol ...
Page 557: ......