Section 8: Specifications In-Sight
®
1700 Series Wafer Reader
90
8.2 I/O Specifications
The 1700 Wafer Reader features one built-in acquisition trigger input and two user-
configurable LED outputs for general-purpose use.
8.2.1 Breakout Port Pin Assignments
Table 8-3 lists the pin assignment for each of the 8 signal lines of the In-Sight 1700
Breakout Port (labeled “24VDC”) according to each method of access.
Table 8-3: Breakout Port Pin Assignments
IN-SIGHT
BREAKOUT PORT
PIN
SIGNAL
BREAKOUT
CABLE
WIRE COLOR
BREAKOUT MODULE*
TERMINALS
EXPANSION MODULE*
TERMINALS
1 +24VDC White-Green 6, 8, 10, 12, 14, 15, 16 (+24V) +24V
2 Trigger + Green 5 (TRG+) TRG+
3 Trigger – White-Orange 4 (TRG-) TRG-
4 CTS Blue
RS232 serial (9-pin D-sub
connector)
RS232 remote (9-pin D-sub
connector)
5 RTS White-Blue
RS232 serial (9-pin D-sub
connector)
RS232 remote (9-pin D-sub
connector)
6
Serial
Receive
Orange
RS232 serial (9-pin D-sub
connector)
RS232 remote (9-pin D-sub
connector)
7
Serial
Transmit
White-Brown
RS232 serial (9-pin D-sub
connector)
RS232 remote (9-pin D-sub
connector)
8 Ground Brown 1, 2, 3 (GND) GND
* Refer to the In-Sight Breakout Module Installation and Reference (P/N 597-0008-xx) and the In-Sight I/O Expansion Module
Installation and Reference (P/N 597-0013-xx) for more detailed information.
8.2.2 Acquisition Trigger Input
Table 8-4: Acquisition Trigger Input Specifications
SPECIFICATION DESCRIPTION
ON 20 to 30V (24V nominal)
VOLTAGE
OFF 0 to 3V (12V nominal threshold)
ON 0.9 to 1.3mA
OFF <150A
Resistance ~22,000 Ohms
CURRENT
For higher current add external resistor (for example, 2.2k, 0.5W for 12mA) across inputs.
DELAY
250 µSec latency between leading edge of trigger and start of acquisition.
Input pulse should be minimum of 1 ms wide.
The acquisition trigger input is opto-isolated. To trigger from an NPN (pull-down) type
photo-detector or PLC output, connect pin 2 (TRG+) to +24V and connect pin 3 (TRG-) to
the output of the detector. When the output turns ON, it pulls TRG- down to 0V, turning
the opto-coupler ON. To trigger from a PNP (pull-up) photo-detector or PLC output,
connect pin 2 (TRG+) to the output of the detector and connect pin 3 (TRG-) to 0V. When
the output turns ON, it pulls TRG+ up to 24V, turning the opto-coupler ON.
