Product data
35
Diagnostics integrated in Modicon
™
 M340
™
, Premium
™
 and Quantum
™
 automation platforms
Introduction
Diagnostics offer for Modicon M340, Premium and Quantum platforms is based on 
the following three components:
System diagnostics  b
DFB and EFB diagnostic function blocks (for system and application diagnostics) b
Error message display system, called viewers, supplied as a standard component  b
of Magelis XBT terminals, Vijeo Citect supervisory software and Unity Pro setup 
software
System diagnostics
The system diagnostics for Modicon M340, Premium and Quantum platforms support 
the monitoring of system bits/words, I/O modules and SFC minimum and maximum 
step activity times. By simply choosing the relevant option during application 
conguration, any event will generate time-stamped messages logged in the 
diagnostic buffer of the PLC.  
These events are displayed automatically in a diagnostics viewer 
(1) without requiring 
any additional programming.
With Unity Pro integrated diagnostics, this function can be used to perform rst level 
diagnostics of the elements in the conguration, up to and including each I/O module 
channel.
Conguration level
Viewer window (example with Unity Pro software)
Module level
Channel level
(1)  Diagnostics viewers are tools for displaying and acknowledging diagnostic error messages. 
They are supplied as a standard component of Unity Pro and Vijeo Designer software, with 
Magelis terminals and with the PLC Web server that can be accessed via a thin client 
Magelis iPC.
Processor 
for system 
bits and 
words
In-rack I/O 
modules
Remote I/O 
modules on 
FIPIO
™
 or 
CANopen
™
Higher-level 
MES
Cell level
Machine level
Unity
™
 Pro
Diagnostics viewersSystem diagnostics
Application diagnostics
Ethernet TCP/IP
Magelis
™
 XBT
PC
Vijeo
™
 Citect
™
Thin client Magelis iPC 
Quantum
™
, 
Premium
™
, 
Modicon
™
 M340
™
Vijeo
™
 Designer
™
Modicon
™
 Quantum
™
 Ethernet I/O 
automation platform
Unity
™
 Pro software
Small / Medium / Large / Extra Large / XLS
Integrated diagnostics
Functions (continued)










