Configuring an M1 CPU with Modsoft
870 USE 101 10 V.2 235
Changing the Mode and Data Bits
Introduction From the Port editor screen, each port can be configured to operate in one of two
possible modes – RTU or ASCII.
lIf the mode is RTU, the number of data bits is always 8.
lIf the mode is ASCII, the number of data bits is always 7.
Procedure To change the mode and data bit parameters, perform the steps in the following
table.
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Note: The factory-set default is 8-bit RTU.
Step Action
1Place the cursor on the current Mode entry for the Modbus port you want to enter.
Push <Enter>.
Result: A popup window appears in the top left corner of the screen displaying your
two Mode options: