Comtrol DeviceMaster EtherNet/IP-Modbus EIP-MOD User Manual page 55

Modbus over TCP (not Modbus/TCP) Socket Configuration Page
Modbus over TCP (not Modbus/TCP) Socket Configuration Page (Continued)
Listen Port 
(Defaults: 
Port 1=8000
Port 2=8001
Port 3=8002 
Port 4=8003)
Connect to Mode
(Default = Never)
Connect Port 
(Default = 0)
Connect IP Address
(Default = 0)
Disconnect Mode
(Default = Never)
Idle Timer 
(Default = 0)
Rx Timeout Between
Packets 
(Default = 100)
Discard Modbus Error
Responses
DeviceMaster EIP-MOD User Guide: 2000664 Rev. A
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.
•
The following TCP/IP ports are not allowed: 0, 22, 23, 80, 443, 502, 4606, and
4607.
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.
Socket port to connect to (1 to 65535). Used in conjunction with Connect to
Mode and Connect IP Address.
IP Address of application to create a connection. Used in conjunction with
Connect to Mode and Connect Port.
Note: The IP Address of this DeviceMaster EIP-MOD will not be accepted as
valid configuration data.
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.
•
If the Disconnect Mode is set to Idle, the idle or inactivity time (1 to 65535 ms)
when the connection(s) will be closed.
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.
Chapter 5. Modbus Menus- 55