Put words in double quotes to match phrase

Profile™ is a trademark of Ambrit Ltd

Setting Up a Modbus Server

N.B. This must be performed on the server.

The Modbus server makes data collected by Profile available to other Modbus clients.

Before setting up the Modbus server, please ensure that the Modbus server’s Modbus map has been setup for each configuration.

1. Select ‘Modbus Server’ from the ‘Config’ menu

2014-07-08 12.59.41 Screenshot

2. Enter the details as follows:

Connection Type Serial or TCP.
Protocol Modbus TCP or Modbus RTU.
IP Address (TCP only) The TCP/IP address of the Modbus server should listen on.
TCP Port (TCP only) The TCP/IP port that the Modbus server should use.
Slave Address The slave address. It will default to 1.
No of Connections (TCP only) This is how many incoming connections are permitted. It will default to 1.
Serial Port (serial only) The serial port of the Modbus Server.
Baud Rate (serial only) The baud rate will default to 115200.
Data Bits (serial only) The data bits will default to 8.
Stop Bits (serial only) The stop bits will default to 1.
Parity (serial only) The parity will default to None.
Validity This is how long in seconds that data will be regarded as fresh. Once the validity period has been passed the data will be marked as stale and the Modbus server will throw an “04″ exception error.
Block Size This is many Modbus addresses will be reserved for each RTU. It defaults to 100.

3. Click the ‘RTUs’ tab

2014-07-08 13.17.15 Screenshot

This window shows all the RTUs on the system and the blocks that they are using. The blocks cannot be adjusted or reordered.

4. Click the ‘Modbus Map’ tab

2014-07-08 13.42.07 Screenshot

The Modbus map extrapolates the configuration’s Modbus map for each RTU. Click here for more information.

5. Click the ‘OK’ button