Mnet client x, Error/status pointer, Minimum command delay – ProSoft Technology MVI71-MNET User Manual

Page 30: Command error pointer, Response timeout, Retry count, Float flag

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MVI71-MNET ♦ PLC Platform

Module Configuration

Modbus TCP/IP Interface Module

User Manual


Page 30 of 109

ProSoft Technology, Inc.

June 23, 2009

2.7.5 [MNET Client x]

This section defines the configuration for the master device(s) simulated on
MNET port.

Error/Status Pointer

-1 to 4990

Starting register location in virtual database for the error/status table for this
client. If a value of -1 is entered, the error/status data will not be placed in the
database. All other valid values determine the starting location of the data.

Minimum Command Delay

0 to 65535

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.

Command Error Pointer

-1 to 4999

This parameter sets the address in the internal 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.

Response Timeout

0 to 65535 milliseconds

This parameter represents the message response timeout period in 1 millisecond
increments. This is the time that a client will wait before re-transmitting a
command if no response is received from the addressed server. The value is set
depending upon the communication network used and the expected response
time of the slowest device on the network.

Retry Count

0 to 10

This parameter specifies the number of times a command will be retried if it fails.

Float Flag

Yes or No

This flag specifies if the floating-point data access functionality is to be
implemented. If the float flag is set to Yes, Modbus functions 3, 6 and 16 will
interpret floating point values for registers as specified by the two following
parameters.

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