Emerson MCi210, Руководство пользователя

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MCi210 User Guide
63
Issue Number: 2
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This parameter can be changed from its default port of 502, however it is the user's responsibility to
ensure that a valid port is set.
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 the 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.
S.15.005 Modbus Listening Port
Minimum 0 Maximum 65535
Default 502 Units
Type 16 Bit User Save Update Rate
MODBUS_THREAD_TI
CK_TIME
Display Format None Decimal Places 0
Coding RW, BU
S.15.006 Maximum Connections
Minimum 0 Maximum 4
Default 2 Units
Type 8 Bit User Save Update Rate
Read on 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
Type 8 Bit User Save Update Rate
Read on module reset,
Modbus interface reset
or Modbus interface
enable
Display Format None Decimal Places 0
Coding RW, BU