NAME

       opto_ac5 - Realtime driver for opto22 PCI-AC5 cards

SYNOPSIS

       loadrt opto_ac5  [portconfig0=0xN] [portconfig1=0xN]

DESCRIPTION

       These  pins  and parameters are created by the realtime opto_ac5 module.  The portconfig0 and portconfig1
       variables are used to configure the two ports of each card.  The  first  24  bits  of  a  32  bit  number
       represent  the 24 i/o points of each port.  The lowest (rightmost) bit would be HAL pin 0 which is header
       connector pin 47.  Then next bit to the left would be HAL pin 1, header connector pin 45 and so on, until
       bit 24 would be HAL pin 23, header connector pin 1.  "1" bits represent output points.  So channel  0..11
       as  inputs  and  12..23  as outputs would be represented by (in binary) 111111111111000000000000 which is
       0xfff000 in hexadecimal.  That is the number you would use, e.g., loadrt opto_ac5 portconfig0=0xfff000

       If no portconfig variable is specified the default configuration is 12 inputs then 12 outputs.

       Up to 4 boards are supported.  Boards are numbered starting at 0.

       Portnumber can be 0 or 1. Port 0 is closest to the card bracket.

PINS

       opto_ac5.[BOARDNUMBER].port[PORTNUMBER].in-[PINNUMBER] OUT bit
       opto_ac5.[BOARDNUMBER].port[PORTNUMBER].in-[PINNUMBER]-not OUT bit
              Connect a HAL bit signal to this pin to read an i/o point from the card.  The PINNUMBER represents
              the position in the relay rack.  E.g., PINNUMBER 0 is position 0 in a opto22 relay rack and  would
              be  pin  47  on  the 50 pin header connector.  The -not pin is inverted so that LOW gives TRUE and
              HIGH gives FALSE.

       opto_ac5.[BOARDNUMBER].port[PORTNUMBER].out-[PINNUMBER] IN bit
              Connect a HAL bit signal to this pin to write  to  an  i/o  point  of  the  card.   The  PINNUMBER
              represents  the  position  in the relay rack.  E.g., PINNUMBER 23 is position 23 in a opto22 relay
              rack and would be pin 1 on the 50 pin header connector.

       opto_ac5.[BOARDNUMBER].led[NUMBER] OUT bit
              Turns one of the on board LEDS on/off. LEDS are numbered 0 to 3.

PARAMETERS

       opto_ac5.[BOARDNUMBER].port[PORTNUMBER].out-[PINNUMBER]-invert W bit
              When TRUE, invert the meaning of the corresponding -out pin so that TRUE gives LOW and FALSE gives
              HIGH.

FUNCTIONS

       opto_ac5.0.digital-read
              Add this to a thread to read all the input points.

       opto_ac5.0.digital-write
              Add this to a thread to write all the output points and LEDS.

BUGS

       All boards are loaded with the same port configurations  as the first board.

SEE ALSO

       http://wiki.linuxcnc.org/cgi-bin/wiki.pl?OptoPciAc5

LinuxCNC Documentation                             2008-08-04                                        OPTO_AC5(9)