Configuring an M1 CPU with Concept

Changing Mode and Data Bits

Introduction

From the Modbus Port Settings dialog box, each port can be configured to operate

 

in one of two possible modes – RTU or ASCII.

 

λ

If the mode is RTU, the number of data bits is always 8.

 

λ

If the mode is ASCII, the number of data bits is always 7.

Note: The factory-set default is 8-bit RTU.

Procedure

To change the mode and data bit parameters, perform the steps in the following

 

table.

 

 

 

 

 

Step

Action

 

 

 

 

1

Click on the down arrow under Mode.

 

 

Result: A menu appears displaying your two Mode options.

2Click on the RTU or ASCII entry.

Result: The Ports setting Window is updated with the Mode type you have specified, the corresponding Data Bit value appears.

Example: If you change Modbus Port 1 from RTU mode to ASCII mode, the Data Bit value also automatically changes from 8 to 7.

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Schneider Electric Processor Adapter manual Changing Mode and Data Bits, One of two possible modes RTU or Ascii