ProSoft Technology 5105-103M-PDPS - Manual (Page 22)

Start Here 5105-103M-PDPS ♦ ProLinx Gateway
User Manual IEC 60870-5-103 Master to PROFIBUS Slave Gateway
Page 22 of 144 ProSoft Technology, Inc.
November 24, 2010
Step 3: Configure the Session (Slave) Poll Parameters
According to the IEC 60870-5-103 protocol, the master cyclically polls data from
the slaves. The data is classified as Class 1 or Class 2. Events belong to Class
1, and analog data to Class 2. The module can request data through Class 1 or
Class 2 requests. Responses to control command and general interrogation
commands are also sent as Class 1 data.
Refer to the [IEC-103 Master Session x] section in the configuration file in order
to configure how each slave will be polled.
These parameters include the Data Link Address, which is the slave address that
identifies each piece of protection equipment in the network. There should be a
unique number for each slave in the network. There are also certain parameters
that pertain to how the Class 1 and Class 2 polls will be used for data transfer.
You must enter the number of sectors for each session using the Sector Count
parameter. The module accepts up to five sectors per session.
Note: Actual number of available sectors per session will depend on the total number of sessions
and sectors configured. The recommended maximum number of sectors is three.