IEC 870-5-101 Slave configuration

IEC 60870-5-101 Slaveconfiguration

The workbench includes an integrated configurator for the IEC 60870-5-101 slave protocol. Please refer to the following topics:

Port configuration
Variables configuration
Data types

Port configuration:

To establish the communication, run the Fieldbus configuration using "Tools / Fieldbus Configuration" menu command from the main window. Then select the "IEC 60870-5-101" configuration.

The configuration is represented as a tree:

- IEC 60870-5-101 configuration
- Communication port

For each port you must specify the following properties:

Name	Free description text
Link address	IEC link address number
Port number	Number of the serial port used
Baudrate	Communication baud rate
Commands active	If this option is unchecked, commands will be denied.
Max user data	Maximum size of exchanged data
Short pulse	Short pulse duration in milliseconds
Long pulse	Long pulse duration in milliseconds
Link address size	Size of the link address (bytes)
CAOA size	Size of the common address (bytes)
COT size	Size of the type (bytes)
IOA size	Size of the object address (bytes)

Variables configuration

Exchanged variables are not described in the fieldbus configuration, but using "profiles". To map a variable to the IEC 60870-5 slave protocol, edit its properties using the "Properties" command of the contextual menu in the variable editor, and then select the "IEC60870S" profile. Then you must specify the following properties for the variable:

CAOA	Common address
TID	Type identifier
IOA	Object address

The use of this profile applies to both IEC 60870-5-101 and 60870-5-104 slave protocols.

Data types:

You can freely map a variable of any data type to the configuration. The runtime automatically converts the value to the type of the variable. STRING variables are not supported.