Addi-Data ADDICOM PA 7400 Series Technical Description page 6

PA 7400
6.2 Installing the software ...............................................................................23
6.2.1 Software installation under MS-DOS and Windows 3.11............................................. 23
6.2.2 Software installation under Windows NT / 95 .............................................................. 23
6.3 Board configuration with ADDIREG...........................................................24
6.3.1 Program description.................................................................................................. 24
6.3.2 Registrating a new board.......................................................................................... 27
6.3.3 Changing the registration of a board ....................................................................... 27
6.3.4 Removing the ADDIREG program ............................................................................. 28
6.4 Error analysis per Internet ..........................................................................28
7 CONNECTION TO THE PERIPHERAL ..................................................... 29
7.1 Connector pin assignments .....................................................................29
8 FUNCTIONS OF THE BOARD................................................................ 31
8.1 Block diagram..........................................................................................31
8.2 I/O mapping ............................................................................................32
8.2.1 I/O map - serial port 1 ............................................................................................... 32
8.2.2 I/O map - serial port 2 ............................................................................................... 33
8.2.3 I/O map - parallel port .............................................................................................. 33
8.3 Serial communication: serial ports 1 and 2 .............................................34
8.3.1 RS232 - Only serial port 1 ........................................................................................... 34
Operation without the modem control signals DTRA, CTSA, RTSA, DCDA, DSRA,
RIA......................................................................................................................... 34
Operation with the modem control signals DTRA, CTSA, RTSA, DCDA, DSRA, RIA... 34
8.3.2 RS422 ........................................................................................................................ 35
Controlling the RS 422 transmitter ......................................................................... 35
Controlling the RS 422 receiver ............................................................................. 36
Terminators and open-circuit potential for RS 422 ................................................ 36
RS 422 cabling - serial port 1................................................................................. 37
RS 422 cabling - serial port 2................................................................................. 37
8.3.3 RS485 ........................................................................................................................ 38
Controlling the RS 485 transmitter ........................................................................ 38
Controlling the RS 485 receiver ............................................................................. 39
Terminators and open-circuit potential in RS 485.................................................. 39
RS 485 cabling - serial port 1................................................................................. 40
RS 485 cabling - serial port 2................................................................................. 40
8.3.4 Current loop .............................................................................................................. 41
Setting the current sources.................................................................................... 41
20mA current loop cabling................................................................................... 42
8.3.5 Selecting the reference point of the protection circuitry ........................................... 45
Serial port 1 ........................................................................................................... 45
Serial port 2 ........................................................................................................... 45
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