Reference MVI56-BDW
♦
ControlLogix Platform
BARDAC Drive Web Interface
ProSoft Technology, Inc.
Page 57 of 82
September 4, 2008
Supports up to 100 user-defined read or write commands that can be sent to
a Bardac device
Configurable parameters for the client include:
o
Error/Status Pointer
o
Command Error Pointer
o
Response Timeout
o
Retry Count
5.2 Functional
Overview
This section provides an overview of how the MVI56-BDW module transfers data
using the BDW protocol. You should understand the important concepts in this
chapter before you begin installing and configuring the module.
5.2.1 General
Concepts
The following discussion explains several concepts that are important for
understanding the operation of the MVI56-BDW module.
Module Power Up
On power up the module begins performing the following logical functions:
1
Initialize hardware components
o
Initialize ControlLogix backplane driver
o
Test and Clear all RAM
o
Initialize the serial communication ports
2
Read configuration for module from BARDACDW.CFG file on Compact Flash
Disk
3
Initialize Module Register space
4
Enable Client Driver
After the module has received the configuration, the module will begin
communicating with other nodes on the network, depending on the configuration.
