SI-Ethernet User Guide 93
Issue: 3
Safety
information
Introduction
Mechanical
installation
Electrical
installation
Getting started
Parameters
Key features
and Protocols
PC Tools
Applications
Security Diagnostics
Glossary of
terms
Index
This parameter permits the user to specify the total number of connections that one or more clients
can open with the module at any one time.
This parameter defines how many of the maximum connections specified in Maximum Connections
(S.15.006) can be configured as a priority connection. A connection is accepted into the priority
connections pool if the client's IP address matches one of the values stored in parameters Priority
Connection 1 (S.15.020), Priority Connection 2 (S.15.021), Priority Connection 3 (S.15.022) or
Priority Connection 4 (S.15.023).
The priority connections are permanent and, once made will only be deleted at the request of the
client or due to a communications error.
Any connections not in the priority connections pool are kept in the non-priority connections pool. If
a client attempts to establish a priority connection and all available non-priority connections are in
use, the non-priority connection that has not been used for the longest will be closed to make way
for the new priority connection.
This parameter defines the maximum number of priority connections that any one client can
establish. This check is only performed on the connections in the priority connections pool.
S.15.006 Maximum Connections
Minimum 0 Maximum 4
Default 2 Units None
Type 8 Bit User Save Update Rate
Module reset, Modbus
interface reset or Modbus
interface enable
Display Format None Decimal Places 0
Coding RW, BU
S.15.007 Maximum Priority Connections
Minimum 0 Maximum 4
Default 2 Units None
Type 8 Bit User Save Update Rate
Module reset, Modbus
interface reset or Modbus
interface enable
Display Format None Decimal Places 0
Coding RW, BU
S.15.008 Max Connections Per Client
Minimum 1 Maximum 4
Default 2 Units None
Type 8 Bit User Save Update Rate
Module reset, Modbus
interface reset or Modbus
interface enable
Display Format None Decimal Places 0
Coding RW, BU
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