Agilent Technologies 6890 Series Service Manual page 698

Remote start/stop
S S
A A
M M
P P
L L
E E
R R
1 1
S
A
M
P
L
E
R
2
T
R
A
Y
S S
I I
G G
1 1
LAN
S
I
G
2
R R R
E
E S
M M /
O O 2
T
T 3
E E 2
E
V
E
N
T
B
C
D
Figure 1215-6
Signal descriptions
Prepare (low)
performing pre-analysis activities.
Start (low)
performing runtime-controlled activities.
Ready (high)
controller.
Stop (low)
example, stop run, abort or finish, and stop injection). Receiver is any module
performing runtime-controlled activities.
Jun 2001
JP1, REMOTE
1
Pin
6
1
9
2
5
3
4
5
6
REMOTE
7
8
9
Remote start/stop connection
—
Request to prepare for analysis. Receiver is any module
—
Request to start run/timetable. Receiver is any module
—
System is ready for next analysis. Receiver is any sequence
—
Request to reach system ready state as soon as possible (for
Electrical
Agilent 6890 Gas Chromatograph Service Manual
External Connectors, 6890N
Remote start/stop
Function Logic
Digital ground
Prepare LOW true
Start LOW true (input)
Start relay
Start relay
No connection
Ready HIGH true (output)
Stop LOW true
No connection
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