Pin
Description
24
DIGITAL IN 3 - input, pulled-up internally to + 3.3V, ground to
activate assigned function
25
DIGITAL IN 4 - input, pulled-up internally to + 3.3 V, ground to
activate assigned function
26
+ 12 V d.c. - supply, regulated, 80 mA maximum
27
Not connected
28
Not connected
29
Reserved - do not use, ground
30
ANALOG OUT 1 - output, analog, range 0 to + 10 V d.c.
31
Ground
32
ANALOG OUT 2 - output, analog, range 0 to + 10 V d.c.
33
Ground
34
ANALOG OUT 3 - output, analog, range 0 to + 10 V d.c.
35
Ground
36
ANALOG OUT 4 - output, analog, range 0 to + 10 V d.c.
37
DIGITAL OUT 4 - output, digital, 0/+ 5 V d.c., 7 mA maximum
*
Maximum relay current 500 mA, maximum voltage 28 V. Common and NC
pins are connected in default or de-energized state.
11.6.
Connector J112, SER
Standard Sub-D 9-pin female connector. Connection to serial interface.
Supported serial standards are RS-232, RS-485 full duplex (four wire setup),
and RS-485 half duplex (two wire setup).
Cabling for RS-232 serial protocol
The QPC functions as data terminal equipment (DTE) devices.
When the controller is connected to another DTE device (such as a personal
computer), a null modem serial cable or a simple 3 wire serial crossover
cable is required to connect the devices. The null modem cable swaps the
signal lines so the receive and transmit signals are properly connected.
Note:
For RS-232, the serial cable between the PC and the controller only needs to cross Rx
and Tx pins. No other signals are needed, except ground pin 5.
Table 3. J112 connector pinout
RS-232
RXD
2
TXD
3
GND
5
Page 36
900031_J
900031_J - Rear panel
