ProSoft Technology MVI46-GSC - Manual (Page 41)

Reference MVI46-GSC ♦ SLC Platform
Generic Serial Communication Module
ProSoft Technology, Inc. Page 41 of 78
December 5, 2007
o
Port transmit state
o
Port transmit character count
o
Port transmit block count
ƒ All data related to the module is contained in a single controller tag with
defined objects to simplify configuration, monitoring and interfacing with the
module
ƒ Module configuration and communication configuration data is transferred to
the module via a predefined user data type in the processor
5.2 Functional Overview
This section provides an overview of how the MVI46-GSC module transfers data
using the GSC 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 MVI46-GSC module.
Module Power Up
On power-up, the module performs the following logical functions:
1 Initialize hardware components
o
Initialize SLC backplane driver
o
Test and Clear all RAM
o
Initialize the serial communication ports
2 Wait for Module Configuration from SLC processor
3
Initialize Communication ports
4
Set up the serial communication interface driver on the selected ports
After the module has received the Module Configuration Block from the
processor and the module is configured, the module will begin receiving and
transmitting messages with devices on the serial ports.