Port names
The I/O Device Manager does not consider that multiple projects might be 'linked together' via a global include project. For instance, it does not allow you to specify a unique port name and port number, such that they will not conflict with other projects.
There are three possibilities:
- Protocols that support port name changes: includes Generic TCP and MODBUS TCP and Secure Modbus TLS.
- Protocols that support re-use of ports only: see the table below for protocols and settings that need to match.
- Protocols that do not support port name changes: all protocols not mentioned previous.
The following table shows the settings that must match between the protocols for that column. For example, if you combine two generic serial protocols or a generic serial with a DNP3 via serial, all of the checked items need to match between them.
|
Generic Serial, DNP3 via Serial |
MODBUS RTU via Serial |
DNP3 via TCP/IP, IEC 60870-5-104 via TCP/IP, MODBUS RTU via Gateway |
|
|---|---|---|---|
|
Board Type |
X |
X |
X |
|
I/O Server Name |
X |
X |
X |
|
Port Number |
X |
X |
|
|
Baud Rate |
X |
X |
|
|
Data Bits |
X |
X |
|
|
Stop Bits |
X |
X |
|
|
Parity |
X |
X |
|
|
IP Address |
|
|
X |
|
Network Port Number |
|
|
X |
|
All attached I/O devices must use the same protocol. |
|
X |
X |
Using the Port Settings page in the I/O Device Manager, you can name ports. See Define one I/O device in a project for more information.