Prosoft-technology MVI71-MCM Bedienungsanleitung PDF herunterladen (Seite 93)

Reference MVI71-MCM ♦ PLC Platform

Modbus Communication Module

ProSoft Technology, Inc. Page 93 of 111

December 28, 2007

This configuration will set the module to use a pre-defined time interval for

Modbus message recognition calculated for each baud rate. This should provide

optimal performance for most applications.

The following guard band timer values will be automatically used by the module

with the default parameter value (Guard Band Timer = 0) is selected:

Baud Guard Band Timer (ms)

110 350

150 256

300 128

600 64

1200 32

2400 16

4800 8

9600 4

19200 2

28800 2

38400 2

57600 1

115200 1

If you still observe a considerable number of communication errors, try to

increase the Guard Band Time value (in milliseconds) until the network

performance is improved.

5.6.4 Port 1 Commands

5200 to 5207 Command #1

This set of registers contains the parameters for the

first command in the master command list. The

structure of this data area is as described in the

data object section of the documentation.

5210 to 5217 Command #2 Command #2 data set

- - -

6190 to 6197 Command #100 Command #100 data set

5.6.5 Port 2 Commands

6400 to 6407 Command #1

This set of registers contains the parameters for the

first command in the master command list. The

structure of this data area is as described in the

data object section of the documentation.

6410 to 6417 Command #2 Command #2 data set

- - -

7390 to 7397 Command #100 Command #100 data set

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 110 111

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