INFICON STC-2000A Thin Film Deposition Controller Operating Manual - Manual (Page 154)

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STC-2000A DEPOSITION CONTROLLER
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Remote Inputs for Factory Installed I/O Program
The standard STC-2000A is equipped with eight remote input functions. These inputs are
intended to be activated in a number of ways depending upon the previously described jumper
placement (see figure 3.3). The signal can be continuously applied or be pulsed. The STC-
2000A can be programmed to respond to the leading or trailing edge of this pulse. The
minimum pulse width required is 15 ms. All eight of the inputs can be programmed by the user to suit the
system requirements. It is assumed that the INPUT card PCB is in slot 1 (see figure 3.1 for I/O slot
designations). Initially, the first four inputs are pre-programmed at the factory to the following four
functions:
Factory Remote Inputs
Input 1
START - Functionally identical to Front Panel START key with the STC-2000A in the
ready state. Activating this input with the STC-2000A in either the ready or stopped state
will begin the process cycle.
Input 2 STOP -Functionally identical to Front Panel STOP key. Activating this input will
terminate the deposition process.
Input 3 Final Thickness Trigger - Activation of this input causes the unit to respond as if the final
thickness has been reached.
Input 4 Zero Film Thickness.
External P.S. Activation 3.5 to 40 VDC , AC voltage from 5 to 30 Volts rms
Minimum Current 2 mA
SECTION 4.10
Specifications
SECTION 4.11
RS-232 Serial Communications Interface
This connection provides a serial data communications link to the STC-2000A. Four standard baud rates
can be selected: 300, 1200, 2400, and 9600. They are selected via the configuration menu. The serial
interface communications protocol is also selectable. The choices are either the Sycon format or ASCII
protocol. The electrical specifications correspond to the EIA RS-232 standard.
RS-232 Connections
STC-2000A Type: 9 Pin "D" male
Mating Connector: AMP 205203-1 Or Equivalent (Sycon#s: 404-028, 404-019)
STC-2000A
Function Pin Number
RS-232 Received Data 2
RS-232 Transmitted Data 3
RS-232 Signal Ground 5
Cable Shield Shield Case
SECTION 4.XX page 154 of 292