Pin
Description
21
Reserved – do not use, output, digital, 0/+ 5 V d.c., 7 mA
maximum
22
DIGITAL IN 1 - input, pulled-up internally to + 3.3 V, ground to
activate assigned function
23
DIGITAL IN 2 - input, pulled-up internally to + 3.3 V, ground to
activate assigned function
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.
11.7.
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 MPCq 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.
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900034_C
900034_C - Rear panel
