ICDM-RX/MOD User Manual
Modbus Menus
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4.2. Modbus/TCP Configuration Page
Access the
Modbus/TCP Interface Configuration
page by clicking
Modbus | Modbus/TCP Configuration
. The
following table provides information about each configuration setting.
Listen Port
(Defaults:
Port 1=8000
Port 2=8001
Port 3=8002
Port 4=8003)
The
Listen Port
values are 1-65535.
If
Enable
and
Listen
are both selected, allows acceptance of:
•
Up to six connections from external applications if there is no active
Connect-
to
connection.
•
Up to five connections if there is an active
Connect-to
connection.
Note:
The defined Modbus/TCP socket port of 502 will not be accepted as valid
configuration data.
Connect to Mode (Default
= Never)
•
If
Enable
is selected, this setting determines how to connect to an
application.
•
If
Never
: Do not attempt to make a connection.
•
If
Connect-Always
: Always attempt to maintain a connection to the
application at
Connect IP Address
and
Connect Port
.
Connect Port (Default = 0) Socket port to connect to (1 to 65535). Used in conjunction with
Connect to Mode
and
Connect IP Address
.
Connect IP Address
(Default = 0)
IP Address of application to create a connection. Used in conjunction with
Connect to Mode
and
Connect Port
.
Note:
The IP Address of this ICDM-RX/MOD will not be accepted as valid
configuration data.
Disconnect Mode (Default
= Never)
Mode on which to disconnect from the application.
•
Never
– Will not disconnect when connection(s) are idle.
•
Idle
– Utilizes the Idle Timer to determine when to close the connection.
Idle Timer (Default = 0)
If the
Disconnect Mode
is set to
Idle
, the idle or inactivity time (1 to 65535 ms)
when the connection(s) will be closed.
Rx Timeout Between
Packets (Default = 100)
Receive timeout (0-65565) between packets in msec. This is the maximum
spacing between received bytes allowed before the received Modbus message
is expected to be complete.
Modbus/TCP Configuration Page
Modbus TCP/IP Port 1
Enabled
Always enabled. Cannot be disabled.
TCP/IP Port
The standard Modbus TCP/IP port of 502. This port is always enabled.
Modbus TCP/IP Ports 2 to 16
Enabled
(Default: No)
If selected, the ICDM-RX/MOD will listen for Modbus/TCP requests on the
configured TCP/IP port.
Modbus over TCP (not Modbus/TCP) Socket Configuration Page (Continued)
