ProSoft Technology 5205-104S-PDPS - Manual (Page 12)

4205/5205-TS-104S-PDPS ♦ ProLinx Standalone Customizing the Sample Configuration File
IEC-60870-5-104 to PDPS Communication Module with Time Stamp
Page 12 of 128 ProSoft Technology, Inc.
July 12, 2007
1.1.3 IEC 60870-5-104 Server section
The following is excerpted from a configuration file showing typical examples
used for configuration of the 104S driver. A default configuration file for each
module application that includes the 101S interface card is available for
download from the ProSoft web site. This default configuration can easily form
the basis for a working solution. This file can either be downloaded from the
ProSoft web site at http:/www.prosoft-technology.com, or transferred from the
module.
1.1.4 [Window Parameters]
This section is used to define the control window to send events and time data
from the MNET interface to and from the 104S interface. If either or both of
these parameters are invalid or -1, then this feature is disabled.
If the database registers for the two areas (non-overlapping -- not checked by
application) are valid, this feature is utilized. Each window requires 100 words of
the database. The input window is read by the module and the output window is
written by the module.
[Window Parameters]
DB Input Window Start : 3000 #Start register for input window (-1=not used)
DB Output Window Start : 3100 #Start register for output window (-1=not used)
DB Input Window Start
The DB Input Window Start parameter defines the Prolinx database starting
register where the command block request should be transferred to (from the
remote node to the Prolinx module). A value of –1 disables this functionality.
DB Output Window Start
The DB Output Window Start parameter defines the Prolinx database starting
register where the command block response should be transferred to (from the
Prolinx module to the remote node ). So some command blocks will require a
response from the module (for example the command block to retrieve the
current time from the module). A value of –1 disables this functionality.
1.1.5 [SNTP CLIENT]
The [SNTP CLIENT] section of the CFG file is used to specify the parameters for
the Simple Network Time Protocol (SNTP) client provided with the protocol
driver. This client is required in order to keep the driver's internal clock set
correctly. This version of the driver supports SNTP Revision 3 and stratum
between 1 and 14.
SNTP is used for time synchronization of produced and consumed commands.
When an exchange occurs the driver compares time stamps from the previous
exchange. When the new exchange time is less than the previous exchange, the
exchange is ignored. This can occur when the Ethernet packets are routed and
delayed. Time synchronization provides for data integrity.