Delta Tau PMAC2A-PC/104 Manual descargar pdf (Pagina 25)

PMAC2A-PC104 Hardware Manual

Machine Connections 19

Compare Equal Outputs

The compare-equals (EQU) outputs have a dedicated use of providing a signal edge when an encoder

position reaches a pre-loaded value. This is very useful for scanning and measurement applications.

Instructions for use of these outputs are covered in detail in the PMAC2’s User Manual.

Serial Port (JRS232 Port)

For serial communications, use a serial cable to connect your PC's COM port to the J8 serial port

connector present on the PMAC2A-PC/104 baseboard. Delta Tau provides the Accessory 3L cable for

this purpose that connects the PMAC to a DB-9 connector. Standard DB-9-to-DB-25 or DB-25-to-DB-9

adapters may be needed for your particular setup. If a cable needs to be made, the easiest approach is to

use a flat cable prepared with flat-cable type connectors as indicated in the following diagram:

EQU_1+

GND

JMACH2

TTL level output

PMAC (DB-9S) PC (DB-9)

1 (No connect) 1 (No connect)

2 (TXD/) 2 (RXD)

3 (RXD/) 3 (TXD)

4 (DSR) 4 (DTR)

5 (Gnd) 5 (Gnd)

6 (DTR) 6 (DSR)

7 (CTS) 7 (RTS)

8 (RTS) 8 (CTS)

9 (No connect) 9 (No connect)

DB-9

Female

1 1

DB-9

Male

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 71 72

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Delta Tau PMAC2A-PC/104 Manual Pagina 25