Technical data

A-B SuperBridge Technical Reference
5
• SIO-485 Mode. E4 = {Dip Shunt @ SIO-485}. This is not the default setting.
• Line terminations on. SW-2 = {(T,P,P,L,L) = (On, On, On, Off, Off)}.
For COM2, the following strappings would change to:
• Port Adress to 2F8. SW1 = {On, On, Off, On}
• IRQ Jumper to IRQ3. E1 = {Jumper @ 3}.
Install RS-422 multiport adapter, if needed
If more than 32 MCs are connected to the host PC serial port, or to increase performance, a
multi-port RS-422 adapter must be used. Up to 4 serial ports, sharing a single interrupt (IRQ), are
supported.
Merrick has successfully tested the FASTCOM422/4 serial multiport adapter from Industrial
Computer Source, [phone]. Strappings tested for this board were:
• Port Adress Base to 280. SW1 = {On, On, Off, On, Off, On, On, On}
• IRQ 3, No IRQ Sharing. SW2 = {On, Off, On, Off, Off, Off, Off, Off}, SW3 = {Off, Off, Off, Off}.
This is not the factory default setting. The factory default is IRQ5. In the test computer, IRQ5
was used by the A-B KT adapter. No COM2 port, which uses IRQ3, was installed in the test
computer. Do not use IRQs higher than 7.
• CTS Handshaking disabled, No RTS Tx driver control. SW4 = {On, On, On, On, Off, Off, Off,
Off}.
An example of the configuration file for this multiport adapter an be found in Sample
SUPERB.INI, page 46.
Modify PC configuration
The SB software files are distributed as a complete directory structure, including all configuration
files. If a 1771-DXS2 or 1771-EIP information processor is used, all files reside on a PCMCIA
Flash EPROM card, drive C:. For a pre-configured system, the files are installed along with MS-
DOS on the PC hard drive. In all other cases, the SB files are shipped on a 3½” floppy, and the
files have to be copied onto the PC hard drive. MS-DOS, versions 5 or 6, must already be
installed. To copy the SB files onto the hard drive insert the distribution diskette in the floppy drive
(assumed to be drive A:), boot the PC, and at the C:\> prompt, type
XCOPY A:*.* /S /E /V
and hit return. The existing AUTOEXEC.BAT and CONFIG.SYS files will be overwritten and the
following directories will be created:
\SUPERB SB executable and configuration files
\ABIC\BIN KT card executables and configuration files
\IPDS\SYMBOLS A-B 6200 programming software symbol files for SB, if configured
\DOC Specific release or configuration text files.
MS-DOS files are assumed to reside in \DOS.
Four files deals with the SB configuration and are referenced below as
CFG_KT.INI \ABIC\BIN\CFG_KT.INI
SUPERB.INI \SUPERB\SUPERB.INI
AUTOEXEC.BAT \AUTOEXEC.BAT