Cold Boot Block (9999); Special Function Blocks; Warm Boot Block (9998) - ProSoft Technology MVI69-GSC CompactLogix User Manual

MVI69-GSC ♦ CompactLogix or MicroLogix Platform
Generic ASCII Serial Communication Module

5.2.3 Special Function Blocks

Special Function blocks are blocks used to control the module or request special data
from the module. The current version of the software supports two Special Functions,
warm boot and cold boot.

Warm Boot Block (9998)

This block is sent from the CompactLogix or MicroLogix processor to the module (output
image) when the module is required to perform a warm-boot (software reset) operation.
The following table describes the format of the control block.
Offset
0
1

Cold Boot Block (9999)

This block is sent from the CompactLogix or MicroLogix processor to the module (output
image) when the module is required to perform the cold boot (hardware reset) operation.
This block is sent to the module when a hardware problem is detected by the ladder
logic that requires a hardware reset. The following table describes the format of the
control block.
Offset
0
1
ProSoft Technology, Inc.
Description
9998
Spare
Description
9999
Spare
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