ProSoft Technology MVI56-MCM, User Manual

Page: 111 / 159

Reference MVI56-MCM ♦ ControlLogix Platform
Modbus Communication Module
ProSoft Technology, Inc. Page 111 of 159
July 24, 2008
8.4 MVI56-MCM Database Definition
This section contains a listing of the internal database of the MVI56-MCM
module. This information can be used to interface other devices to the data
contained in the module.
Register Range Modbus Low Modbus High Content Size
0 to 4999 40001 45000 User Data 5000
5000 to 5009 45001 45010 Backplane Configuration 10
5010 to 5039 45011 45040 Port 1 Setup 30
5040 to 5069 45041 45070 Port 2 Setup 30
5070 to 5869 45071 46070 Port 1 Commands 800
5870 to 6669 46071 47070 Port 2 Commands 800
6750 to 6752 46751 46753 Port 1 Aux. Setup 3
6760 to 6762 46761 46763 Port 2 Aux Setup 3
6670 to 6702 46671 46703 Misc. Status Data 33
6800 46801 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 MVI56-
MCM Status Data Definition (page 119).
Definition of the configuration data areas can be found in the data definition
section of this document and in MVI56-MCM Configuration Data Definition (page
111).
MVI56-MCM Command Control (page 121) contains a discussion of the
command control section of the database.
8.5 MVI56-MCM Configuration Data
This section contains listings of the MVI56-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.
8.5.1 Backplane Setup
Register Content Description
5000 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 4999.
5001 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 5000.
5002 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 4999.