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Chapter 2
2.4.9
Linking Screen
The linking screen allows the condition of one module to affect one or more other
modules in the system. The Clr All soft key allows clearing of all defined links. To
clear a single link, simply change the Src field to None. The system supports up to
32 links.
As an example of linking, consider a system containing a laser and TEC module in
slots 1 and 2, respectively. The TEC module cannot operate when the laser is off
because condensation will form on the laser and may damage it. However, the TEC
must be turned on whenever the laser is on to protect it from overheating. First,
program the TEC high and low temperature limits to the operating range of the laser.
The following three links will then ensure these conditions are met:
#
1
2
3
Link #1 turns on the TEC whenever the laser is on. Link #2 turns off the TEC
whenever the laser is off. Link #3 turns off the laser if the TEC exceeds its
temperature limits. There is no need to define a fourth link to turn off the TEC on a T
Lim condition because if Link #3 turns off the laser, Link #2 will automatically turn
off the TEC.
As shown in the example above, it is possible to setup a level of control that would
normally only be possible with a computer-based monitoring system.
See each module's manual for a list of link conditions.
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System Operation
Figure 9 - Link Screen
Src
Condition
1
On
1
Off
2
T Lim
Action
Tgt
Turn On
2
Turn Off 2
Turn Off 1
19
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