Instruction Manual

139Publication 1753-UM001C-EN-P - March 2010 139
Chapter 15
Diagnostics
Introduction
View Controller
Diagnostics
The controller stores short term and long term diagnostics data. The
number of entries the controller can save depends on the controller,
as shown below.
If the memory for short term entries is full and the controller needs to
log another entry, the controller deletes the oldest entry.
If the memory for the long term entries is full and the controller needs
to add a new entry, the controller deletes the oldest entry only if that
entry is more than 7 days old. Otherwise, the new entry is rejected
and a message is displayed in the diagnostics window.
Topic Page
View Controller Diagnostics 139
GuardPLC 1200 Controller Status Indicators 142
GuardPLC 1600 and GuardPLC 1800 Controllers and GuardPLC
Distributed I/O
143
GuardPLC 2000 Controller Status Indicators 145
1755-IB24XOB16 Module Status Indicators 147
1755-IF8 Analog Input Module Status Indicators 148
1755-OF8 Analog Output Module Status Indicators 149
1755-HSC Combination High-speed Counter and Output Module Status
Indicators
149
Type of Data GuardPLC 1200 GuardPLC 1600 and 1800 GuardPLC 2000
CPU COM CPU COM CPU COM
number of short
term entries
300 700 300 700 300 700
number of long
term entries
1000 200 1000 200 1000 200