ProSoft Technology MVI46-DFNT User Manual

Page 109

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MVI46-DFNT ♦ SLC Platform

Reference

EtherNet/IP Client/Server Communication Module

User Manual

ProSoft Technology, Inc.

Page 109 of 177

October 12, 2010

[Section]/Item

Value

Range

Description

Data Bits:

5 to 8

This parameter sets the number of data bits for each

word used by the protocol.

Stop Bits:

1 or 2

This parameter sets the number of stop bits for each

data value sent.

RTS On:

0 to 65535 This parameter sets the number of milliseconds to

delay after RTS is asserted before the data is

transmitted.

RTS Off:

0 to 65535 This parameter sets the number of milliseconds to

delay after the last byte of data is sent before the RTS

modem signal will be set low.

Use CTS Line:

Y or N

This parameter specifies if the CTS modem control line
is to be used. If the parameter is set to N, the CTS line

will not be monitored. If the parameter is set to Y, the

CTS line is monitored and must be high before the
module sends data. Normally, this parameter is

required when half-duplex modems are used for

communication (2-wire).

Retry Count:

0 to 10

This parameter specifies the number of attempts for
each response message. If a message fails, it is retried

up to the count specified.

Request Timeout:

0 to 65535 This parameter specifies the number of milliseconds to

wait for a complete request message. The timer is
started after the DLE-STX character sequence is

received for the full-duplex protocol or the DLE-SOH

sequence for the half-duplex protocol. If the timer

expires, the current request message is aborted.

Busy Timeout:

0 to 65535 This parameter specifies the number of milliseconds to

wait for the pass-through port to become available.

ACK Timeout:

0 to 65535 This parameter specifies the number of milliseconds to

wait for a DLE-ACK character sequence after a

response is issued.

[Section]/Item

Value

Range

Description

[DFNT Client 0]

Start header for Client 0

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.

Response

Timeout:

0 to 65535 This parameter represents the message response

timeout period in 1-ms increments. This is the time that

a client waits before re-transmitting a command if no

response is received from the addressed slave. 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 is retried if it fails.

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