Module Configuration
MVI56-DH485R
♦
ControlLogix Platform
User Manual
DH485 Interface Module for Remote Chassis
ProSoft Technology, Inc.
Page 25 of 97
August 27, 2009
2.2.3 Read Register Start
Range 0 to 3999
This parameter specifies the starting register in the module where data will be
transferred from the module to the processor. Valid range for this parameter is 0
to 3999.
2.2.4 Read Register Count
Range 0 to 3999
This parameter specifies the number of registers to be transferred from the
module to the processor. Valid entry for this parameter is 0 to 3999.
2.2.5 Write Register Start
0 to 3999
This parameter specifies the starting register in the module where the data will be
transferred from the processor to the module.
2.2.6 Write Register Count
Range 0 to 3999
This parameter specifies the number of registers to transfer from the processor to
the module. Valid entry for this parameter is 0 to 3999.
2.2.7 Initialize Output Data
Yes or No
This parameter determines if the output data for the module should be initialized
with values from the processor. If the value is set to No (0), the output data will
be initialized to 0. If the value is set to Yes (1), the data will be initialized with
data from the processor. Use of this option requires associated ladder logic to
pass the data from the processor to the module.
2.2.8 Failure Flag Count
0 through 65535
This parameter specifies the number of successive transfer errors that must
occur before halting communication on the application port(s). If the parameter is
set to 0, the application port(s) will continue to operate under all conditions. If the
value is set larger than 0 (1 to 65535), communications will cease if the specified
number of failures occur.
