Service Data Objects (Sdos); Sdo Protocol - ABB REPL-01 User Manual

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The Tx PDO is mapped by writing to the 0x1A00 object. By
default, there is no parameter mapped to the Tx PDO. Choose
which parameters are exchanged by the Tx PDO.
The Rx PDO is mapped by writing to the 0x1600 object. By
default, there is no parameter mapped to the Rx PDO. Choose
which parameters are exchanged by the Rx PDO.
Note: The maximum number of I/O parameters that can be
simultaneously mapped for cyclic communication depends on the
drive type and application. For example, ACS800 supports 12
inputs and 12 outputs, and ACS550 supports 15 outputs and 15
inputs.

Service Data Objects (SDOs)

SDO (Service Data Object) uses asynchronous data transmission
and is used to access object without mapping them to a PDO
connection. With SDO communication, all CANopen objects in the
REPL-01 can be accessed.
Ethernet POWERLINK provides different kinds of SDO transfer
methods. REPL-01 supports SDO transfer via Ethernet
POWERLNIK ASnd frames in asynchronous phase. For further
information, see Ethernet POWERLINK Communication Profile
Specification Version 1.1.0.

SDO Protocol

The Download Protocol (for write commands) and Upload
Protocol (for read commands) are described in the Ethernet
POWERLINK Communication Profile Specification Version 1.1.0.
REPL-01 supports the following commands:
• Write by Index
• Read by Index
When the Write by Index command is used, the client of an SDO
(the MN) downloads data to the REPL-01.
Communication
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com