ProSoft Technology PC56-OPC - Manual (Page 21)

Reference PC56 ♦ ControlLogix Platform
User Manual In-Rack Industrial PC
ProSoft Technology, Inc.
Page 21 of 34
November 18, 2009
6 Reference
In This Chapter
™ Memory Map .........................................................................................21
™ Cable Connections ................................................................................ 21
6.1 Memory Map
Address
(hexadecimal) Size
(Kbytes) Function
000000 to 09FFFF 640 System RAM
0A0000 to 0AFFFF 64 VGA Video Graphics RAM
0B0000 to 0BFFFF 32 VGA Enhanced Mode Graphics RAM
0B8000 to 0BFFFF 32 VGA Text RAM
0C0000 to 0CBFFF 48 VGA BIOS
0CC000 to CFFFFF 16 Free Memory
0D0000 to 0DFFFF 64 Free Memory when ControlLogix
®
configuration jumper is set
to 32 bit position.
64 Kbyte allocated by PCI BIOS for dual port memory when
ControlLogix
®
configuration jumper is set to 16 bit position.
0E0000 to 0EFFFFF 64 System BIOS
0F0000 to 0FFFFF 64 System BIOS
0100000 to 07FFFFFF 1 to 128
Mbyte
System Extended Memory
080000000 to
0C0000000 2 GByte to
3 GByte Used to map memory windows requested by PCI peripherals
6.2 Cable Connections
The application ports on the PC56 module support RS-232, RS-422, and RS-485
interfaces. Please inspect the module to ensure that the jumpers are set correctly
to correspond with the type of interface you are using.
Note: When using RS-232 with radio modem applications, some radios or modems require
hardware handshaking (control and monitoring of modem signal lines). Enable this in the
configuration of the module by setting the UseCTS parameter to 1.