Modbus TCP Folder
The Modbus TCP permits connection to the card by:
•
Any client (Open) permits communication by any IP address
•
Clients on the same subnet as the Unity card
•
Clients with specific IP addresses (Trusted IP Lists); only five addresses are permitted
Modbus TCP Settings
Limit Network Access Type
IP Access List
•
Open
•
Same Subnet
•
Trusted IP List
Port
The TCP port used by the Modbus Server to listen for and respond to Modbus protocol requests.
Default = 502.
Maximum Client Connection Count
Maximum number of simultaneous connections allowed. Range: 1 to 5.
Modbus RTU Folder
Modbus RTU Settings
Node ID
Modbus Server ID for the interface; obtain from network administrator. Must be unique for each node
on the communication bus.
Baud Rate
Communication rate.
•
9600
•
19200
•
38400
Parity Check
The communication parity check.
•
None
•
Even
•
Odd
6 Editing the Unity Card Configuration
55