ProSoft Technology MVI56-DFCMR - Manual (Page 31)

Installing and Configuring the Module MVI56-DFCMR ♦ ControlLogix Platform
DF1 Interface Module with Reduced Data Block
ProSoft Technology, Inc. Page 31 of 113
October 20, 2008
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5047 Data Bits This parameter sets the number of data bits for each
word used by the protocol. Enter a value in the range
of 5 to 8.
5048 Stop Bits This parameter sets the number of stop bits to be
used with each data value sent. Enter a value of 1 or
2.
5049 Minimum Response
Delay This parameter sets the number of milliseconds to
wait before a response message is sent out of the
port. This parameter is required when interfacing to a
slow responding device. Enter a value in the range of
0 to 65535.
5050 RTS On Delay This parameter sets the number of milliseconds to
delay after RTS is asserted before the data will be
transmitted. Enter a value in the range of 0 to 65535.
5051 RTS Off Delay 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. Enter a value in
the range of 0 to 65535.
5052 Use CTS Line This parameter specifies if the CTS modem control
line is to be used. If the parameter is set to 0, the
CTS line will not be monitored. If the parameter is set
to 1, the CTS line will be monitored and must be high
before the module will send data. Normally, this
parameter is required when half-duplex modems are
used for communication (2-wire).
5053 ENQ Delay This parameter specifies the number of milliseconds
to wait after a DLE-ACK is received from a slave
using half-duplex mode before the DLE-ENQ request
is made for data. Enter a value in the range of 0 to
65535.
5054 Command Count This parameter specifies the number of commands
to be processed for the port. Enter a value of 0 to
100.
5055 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.
5056 Command Error Pointer This parameter sets the address in the internal DF1
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.
5057 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 upon the communication network used
and the expected response time of the slowest
device on the network.