INFICON MDC-260 Thin Film Deposition Controller - Manual (Page 63)

MDC-260 DEPOSITION CONTROLLER
PROGRAMMING AND CONTROLLER SETUP 4-27
Figure 4-9 Program Input Screen
4.3.3.3 PROGRAM OUTPUTS
The controller has ‘logical’ discrete outputs which are used when running a
process, and ‘physical’ discrete outputs which can be associated arbitrarily by the
user with the logical outputs using the Program Outputs function. Each physical
discrete output is in the form of a pair of relay contacts assigned to dedicated pins
on a controller back-panel connector, and these contacts will close when a the
logical discrete output associated with the physical output satisfies a set of
conditions defined by the user which are evaluated every 100 ms.
The controller provides 8 logical outputs. The 8 logical outputs can be associated
with up to 8 physical outputs. Additionally, the controller has a relay output
which is dedicated to the Abort function.
In the Program Outputs Menu (Main Menu, Edit System Setup, Program
Outputs), you will see all of the logical outputs defined. Use the Up-arrow and
Down-arrow keys to select a logical output. Press Enter or the Right-arrow to edit
the name and conditions of that output.
A logical output (1 to 8) can be given a 16-digit name, and can be associated with
a physical output by identifying connector pin number (2 to 9, paired with 21 to
28, respectively, for the relay contacts).
The logical discrete outputs have two categories. One category contains logical
outputs that are named and assigned by the user, the other category contains
logical outputs that are automatically defined by the controller, such as those
required for source and sensor rotator controls, and these cannot be changed by
the user. These internally defined outputs are indicated by a condition string
labeled “Internally Defined”
When the controller defines outputs, it selects the blank names remaining in the
logical output list and assigns them in sequence to the internally generated
functions. For this reason, it is important that unused outputs are left blank, and
that there are sufficient outputs for all required functions. Outputs that are
internally defined are discussed further in the source/sensor setup sections.
Table 8-2 lists the output pin numbers.
Two screens are required to program the Discrete outputs. The first screen
provides for selecting the output to be programmed, while the second screen
provides for the actual programming, including the output name.
Input Name True Card Pin-Ret
01
External Start --- Low 1 30 12
02 Deposit pressure High 1 31 13
03 Over Pressure
Low 1 32 14
04 Optical Monitor Low 1 33 15
05 Low 1 34 16
06 Low 1 35 17
07 Low 1 36 18
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