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8 .3 .2 modbus master type – KROHNE Summit 8800 Vol 3 User Manual

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124

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08/2013 - MA SUMMIT 8800 Vol3 R02 en

SUMMIT 8800

COMMUNICATION

08

For a serial port these are:
Protocol

ASCII or RTU.

Baud rate

The speed of transmission in bits per second between 300 and 38400.

Parity

A check on correct transmission: none, odd, even, space or mark.

Stop bits

Gap between two transmitted words, 1 or 2 stop bits

Mode

RS232 or RS 485

Word size

Size of one word: 7 or 8 bits

For a Ethernet port these are:
Enable

Click the box to enable modbus over TCP/IP

Timeout

Time to stop attempts being made for connectivity

Port

Ethernet port number

Server

Server IP address for communication

Source port

Ethernet port number for the connected device

8 .3 .2 Modbus Master type

The following devices can be selected for a Modbus master:

Figure 170 Modbus device selection