User`s guide

151
Table 4.-1 Previous and current program packages available for
usage (Continued)
PO value Protocol
25 Modbus RTU master protocol
26 IEC 1107 protocol
If the DCP-MUX to be upgraded contains a protocol which is not listed here, the
upgrading is not possible as such. In this situation, please contact SA-D SupportLine
for more information.
4.4.1. PC-NET
The main issue in the development tasks made to pc_nets.exe is to retain backward
compatibility from revision to another. This principle applies also to protocols
developed already to DCP-MUX hardware.
However, the differences in processor speeds, operating system versions and
communication hardware together with new requirements in system setups and
security will require that the system behavior must be verified after the upgrade.
Before the upgrade, please read through the backward incompatibility items listed
below. The listed PC-NET related issues are protocol specific and if the system to be
upgraded does not contain mentioned protocols, the item has no effect in the
upgrade. More information about the mentioned attributes can be found from
protocol specific manuals and System Objects manual
If the behavior of a communication line after the upgrade is not satisfactory, attribute
changes to the system configuration may be required. A systematic proceeding in
the problem analysis usually gives best results, sometimes it is needed to record a
communication log from the line which is causing problems.
4.4.1.1. PC-NET from SYS 600 9.1 (COM 500 4.2)
In this case, there will be neither backward compatibility issues nor changes in
system requirements.
MicroSCADA Pro
Installation and Administration Manual
SYS 600 9.2SYS 600 9.2
1MRS756115