Mvi56e-mcm configuration data – ProSoft Technology MVI56E-MCM/MCMXT User 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.