BECKHOFF CX1020 - Manual (Page 27)

Product overview
Embedded PC 25
Adapter RAM Hardware address overview
available memory addresses CX1020: D0000-DFFFF (hex)
Base Address
(hex) End Address
(hex)
Size(Bytes)(hex)
Access
Type
Description
D0000 D0FFF 1000 R/W CX1100-0002/3 Dual Ported RAM
D1000 D100F 10 R/W CX1100 Auxiliary Control Block( LCD
Display, misc. registers)
D1010 D101F 10 R/W CX1100-0900 UPS Control Block
D2000 D3FFF 2000 R/W CX1100 Non Volatile RAM
D4000 D5FFF 2000 R/W CX1500-M310 Profibus Master
DPRAM
D6000 D7FFF 2000 R/W CX1500-M510 CANopen Master
DPRAM
D8000 D9FFF 2000 R/W CX1500-M520 DeviceNet Master
DPRAM
DA000 DBFFF 2000 R/W CX1500-M200 Lightbus Master
DPRAM
DC000 DDFFF 2000 R/W CX1500-M750 Sercos Master DPRAM
For some fieldbus connections (all Slave modules) the base addresses are mapped in the memory region upper
DFFFF(hex). So these modules must be ordered with other base addresses. The same situation takes place if more
than two or more master modules of same type are used (for more see note below). The order numbers for the
modules are:
order number alternative ISA address
Master connection
CX1500-Mxxx-0001 D4000
CX1500-Mxxx-0002 D6000
CX1500-Mxxx-0003 D8000
CX1500-Mxxx-0004 DA000
CX1500-Mxxx-0005 DC000
Slave connection
CX1500-Bxxx-0001 D4000
CX1500-Bxxx-0002 D6000
CX1500-Bxxx-0003 D8000
CX1500-Bxxx-0004 DA000
CX1500-Bxxx-0005 DC000
Replace xxx with the following number for the requested fieldbus system:
 200 for Lightbus
 310 for Profibus
 510 for CAN-open
 520 for DeviceNet
 750 for Sercos (only Master connection available)
Note
Two connection modules (master or slave) can be used simultaneously.
If more than two connections are needed call Beckhoff Automation GmbH for further information.