Modbus port x – ProSoft Technology MVI69E-MBS User Manual

Page 54

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MVI69E-MBS Configuration

MVI69E-MBS ♦ CompactLogix Platform

User Manual

Communication Module

Page 54 of 162

ProSoft Technology, Inc.

January 6, 2014

Yes, the data is initialized with Read Register Data values
from the processor. Using this option requires associated
ladder logic to pass the data from the processor to the
module.

Block Transfer Size

60, 120 or
240

Specifies the number of words in each block transferred
between the module and processor.

Slot Number

1 to x

Specifies the slot in the CompactLogix rack for the
module.

Important: The sum of the Read Register Count and Write Register Count cannot exceed 10,000

total registers. Furthermore, neither the Read Data nor the Write Data area may extend above
module register 9999. The Read Data and Write Data areas must not overlap.

3.2.2 Modbus Port x

The information in this section applies to both Port 1 and Port 2.


In PCB’s tree view, double-click the M

ODBUS

P

ORT X

icon.

Configuration Parameters Common to Master and Slave

Parameter

Value

Description

Start Active

Yes or No

Specifies whether or not the port and commands are active
upon module boot-up.

Type

Master, Slave,
or Slave with
Pass-Through

This parameter specifies which device type the port emulates.
Refer to Slave on page 76 for more information on Slave
Pass-Through options.

Protocol

RTU or ASCII

Specifies the Modbus protocol to be used on the port.

Baud Rate

Multiple
options

Specifies the baud rate to be used on the port.

Parity

None

Odd

Even

Specifies the type of parity error checking to use. All devices
communicating through this port must use the same parity
setting.

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