86 SI-Ethernet User Guide
Issue: 1
This parameter will indicate any Modbus configuration errors.
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 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).
Value Text Description
0 No error No error
1 Port in use Specified port is currently in use by another protocol
2 Timeout event Timeout trigger event location is not valid
3 Num Connections
The Max priority connection is greater than the max
connections
S.15.005 Modbus Listening Port
Minimum 0 Maximum 65535
Default 502 Units
Type 16 Bit User Save Update Rate
MODBUS_THREAD_TICK
_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
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
Module reset, Modbus
interface reset or Modbus
interface enable
Display Format None Decimal Places 0
Coding RW, BU
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