Physical connections for modbus tcp -16 – Rockwell Automation AADvance Controller Configuration Guide User Manual
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ICSTT-RM405f-EN-P
Issue 07
Configuration Guide (AADvance Controller)
Serial Port Parameters
Each serial port on the AADvance controller supports the set of control parameters as
detailed in the table.
Table 24:
Controller Serial Port Parameters
Description
Value(s)
Default
Remarks
Baud
1,200; 2,400; 4,800;
9,600; 19,200; 38,400;
57,600; 76,800 or
115,200
19,200
Data Bits
5 to 8
8
Parity
None, Odd or Even
None
Stop Bits
1 or 2
1
Type
RS485fd
RS485fdmux
RS485hdmux
RS485hdmux
'fd' means 'full duplex'
'hd' means 'half duplex'
Note: Most systems use two bits after each data byte. The two bits are either a parity
bit (odd or even) and one stop bit, or no parity and two stop bits.
Physical Connections for Modbus TCP
Modbus master TCP communications use the Ethernet ports on the 9100 processor
base unit.
Setting up the Project for Modbus Master Operation
The top-level process to set up your project for Modbus Master operation consists of
the following tasks.
1) Insert the Modbus Master Bus
2) Create and configure a Modbus master object on a 9110 processor module
3) Create slave link objects for each Modbus slave device
4) Configure the slave link objects
5) Add further Modbus master objects and slave link objects as needed.
Before you begin the process, make sure you have the following information for each
Modbus slave device:
The Modbus protocol to use: Modbus RTU for serial links or Modbus TCP for
an Ethernet link.