ProSoft Technology MVI56E-MCM/MCMXT - Manual (Page 144)

Reference MVI56E-MCM ♦ ControlLogix Platform
User Manual Modbus Communication Module
Page 144 of 199 ProSoft Technology, Inc.
June 18, 2014
Register Range Modbus Low Modbus High Content Size
15350 to 15359 55351 55360 Port 1 Aux Setup 10
15360 to 15369 55361 55370 Port 2 Aux Setup 10
15400 55401 Command Control 1
The User Data area holds data collected from other nodes on the network
(Master read commands) or data received from the processor (write blocks).
Additionally, this data area is used as a data source for the processor (read
blocks) or other nodes on the network (write commands).
Detailed definition of the miscellaneous status data area can be found in
MVI56E-MCM Status Data Definition (page 152).
Definition of the configuration data areas can be found in the data definition
section of this document and in MVI56E-MCM Configuration Data (page 144).
Command Control (page 152) shows the Database register definition in a table
for the Command Control block.
6.5 MVI56E-MCM Configuration Data
This section contains listings of the MVI56E-MCM module's database related to
the module's configuration. This data is available to any node on the network and
is read from the ControlLogix processor when the module first initializes.
6.5.1 Backplane Setup
Register Content Description
10,000 Write Start Reg This parameter specifies the starting register in the
module where the data transferred from the
processor will be placed. Valid range for this
parameter is 0 to 9999.
10,001 Write Reg Count This parameter specifies the number of registers to
transfer from the processor to the module. Valid
entry for this parameter is 0 to 10000.
10,002 Read Start Reg 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 9999.
10,003 Read Reg Count This parameter specifies the number of registers to
be transferred from the module to the processor.
Valid entry for this parameter is 0 to 10000.
10,004 Backplane Fail This parameter specifies the number of successive
transfer errors that must occur before the
communication ports are shut down. If the
parameter is set to zero, the communication ports
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.