ProSoft Technology 5105-103M-PDPS - Manual (Page 28)

Start Here 5105-103M-PDPS ♦ ProLinx Gateway
User Manual IEC 60870-5-103 Master to PROFIBUS Slave Gateway
Page 28 of 144 ProSoft Technology, Inc.
November 24, 2010
Step 6: Command Configuration (Control Direction)
You can also configure the master to send commands to slaves. The IEC 60870-
5-103 protocol specification refers to this data flow as Control Direction. The
commands include general commands, interrogation requests, and time
synchronization requests. In order to configure a command, refer to the [IEC-103
Master Commands]
section:
To send a General Command, you can associate the source data with a register
in the module database to be sent to the remote slave. The following example
will send 8 commands to the slave configured as Session 0/Sector 0. Use bit
addressing to send a General Command.
Refer to the device specification for the Point Index (Information Number) listing
available for control direction.
The module can also send a periodic General Interrogation command in order to
initialize and refresh the event-updated points in its database. The slave keeps a
list of all data subject to General Interrogation.