Prosoft-technology MVI46-MCM Bedienungsanleitung PDF herunterladen (Seite 20)

Configuring the MVI46-MCM Module MVI46-MCM ♦ SLC Platform

User Manual Modbus Communication Module

Page 20 of 108 ProSoft Technology, Inc.

March 29, 2011

File M0 Offset Register Content Description

N10:27 28 5027 Output Offset This parameter specifies the offset address in the

internal Modbus database for network requests for

Modbus function 1, 5, or 15 commands. For

example, if the value is set to 100, an address

request of 0 will return the value at register 100 in

the database.

N10:28 29 5028 Holding Register

Offset

This parameter specifies the offset address in the

internal Modbus database for network requests for

Modbus 3, 6, or 16 commands. For example, if the

value is set to 50, an address request of 0 will

return the value at register 50 in the database.

N10:29 30 5029 Command Count This parameter specifies the number of commands

to be processed for the port. Enter a value of 0 to

100.

N10:30 31 5030 Minimum Command

Delay

This parameter specifies the number of

milliseconds to wait between the initial issuance of

a command. This parameter can be used to delay

all commands sent to slaves to avoid "flooding"

commands on the network. This parameter does

not affect retries of a command as they will be

issued when failure is recognized. Enter a value in

the range of 0 to 65535.

N10:31 32 5031 Command Error

Pointer

This parameter sets the address in the internal

Modbus database where the command error data

will be placed. If the value is set to -1, the data will

not be transferred to the database. Enter a value of

0 to 4999.

N10:32 33 5032 Response Timeout This parameter represents the message response

timeout period in 1 ms increments. This is the time

that a port configured as a master will wait before

re-transmitting a command if no response is

received from the addressed slave. The value is set

depending on to communication network used and

the expected response time of the slowest device

on the network.

N10:33 34 5033 Retry Count This parameter specifies the number of times a

command will be retried if it fails. Enter a value in

the range of 0 to 10.

N10:34 35 5034 Error Delay Count This parameter specifies the number of polls to be

skipped on the slave before trying to re-establish

communications. After the slave fails to respond,

the master will skip commands to be sent to the

slave the number of times entered in the

parameter. Enter a value in the range of 0 to

65535.

N10:35 36 5035 Reserved

N10:36 37 5036 Use Guard Band

Timer

Use packet gap timeout for messages (Yes or No).

Use only in multi-drop applications.

N10:37 38 5037 Guard Band Timeout A value of 0 uses the default baud rate or you can

set a value in milliseconds (0 to 65535)

N10:38 39 5038 Spare

N10:39 40 5039 Spare

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 107 108

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