ProSoft Technology PS-QS-1x10-0781 - Manual (Page 65)

FieldServer Configuration Manual Page 65 of 90
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Figure XIV - Dual Port Server
10.3.3 Tiers – SCADA and PEX
To maintain an image of the complementary system in a FieldServer, FieldServers have the ability run as “multiple”
FieldServers on one platform. To differentiate between the different running applications, each of the applications
is referred to as a Tier with a specific name. Hot Standby Mode 2 makes use of the SCADA tier and the PEX tier for
achieving its functionality.
The configuration file (CONFIG.CSV) is now split into two sections, one section for PEX tier, and one section for
SCADA tier. Each section is identified by the keywords PEX_TIER or SCADA_TIER.
Note: the PEX tier must be defined FIRST.
10.3.4 RUINET functions for Hot Standby Mode 2
To view the various tiers on the FieldServer using RUINET

Connect in the normal fashion: e.g. RUINET –i192.168.1.13 - This connection will directly connect to the
PEX Virtual Tier.

To switch the display to the SCADA virtual tier, from the main menu, type T (for Tier), A (for SCADA)

To switch the display to the PEX virtual tier, from the main menu, type T (for Tier), B (for PEX)

The Server_Name and the Adapter/IP address connections that the FieldServer automatically discovers to
the named Server Nodes are displayed on the Node Descriptor screen of the SCADA tier.
ETHERNET
HUB1
HUB2
Ethernet
10/100 Base T
Serial Port
Active FieldServer
Passive FieldServer
PLC
Ethernet
10/100 Base T
Ribbon cables
(FS-8915-16),
transfer hardwired
ports to standby
FieldServer