ProSoft Technology MVI46-MBP - Manual (Page 60)

MVI46-MBP ♦ SLC Platform Reference
Modbus Plus Communication Module
Page 60 of 101 ProSoft Technology, Inc.
February 19, 2008
5.6 Modbus Plus Communication Port
The MVI46-MBP module has two physical Modbus Plus connectors with two DB-
9 Female plugs located on the front of the module.
5.7 Database Definition
This section contains a listing of the internal database of the MVI46-MBP
module. This information can be used to interface other devices to the data
contained in the module.
5.7.1 Module Memory Map
Overview
Access Module Address
Range Modbus Address
Range Description Block
Low High Low High Size
R/W 0 3999 40001 44000 Data Registers 4000
R 4000 4069 44001 44070 Global In Update Status 70
R 4070 4269 44071 44270 Master Command Status 200
R 4270 4299 44271 44300 Misc Module Status 30
R 4300 4369 44301 44370 Global In Update Counters 70
R/W 4370 4409 44371 44410 Module Configuration Block 40
R/W 4410 4449 44411 44450 Global In File Map 40
R/W 4450 5089 44451 45090 Device Definition 640
R/W 5090 7089 45091 47090 Master Command List 2000
O File 7090 7129 47091 47130 Global Out Image 40
I File 7130 7169 47131 47170 Global In Image 40
R 7170 7221 47171 47222 Command Event Data 52
The Data Registers area holds data collected from other nodes on the network
(master read commands or global input data) 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 (master write
commands).