Festo 03 - 5.1 SUMMARY OF DIAGNOSIS POSSIBILITIES

5.1 SUMMARY OF DIAGNOSIS POSSIBILITIES
The modular valve terminal offers extensive and
comfortable possibilities of diagnosis and error
treatment. Depending on the equipment fitted on
the terminal, the following possibilities are avail-
able:
Valve terminal with inputs
Valve terminal without inputs
Diagnos-
tic possi-
bilites
Status bits
X = not relevant
LEDs Diagnostic status register
Brief
description
The four status bits
are transferred to the
controller board as
"inputs" cyclically with
the normal inputs.
The LEDs
show
configuration
error,
hardware
error, bus
error etc.
The valve terminal
sets/resets the bit
"PF" in the diagnostic
register of the controller
board.
Advantage Fast access to error
messages irrespective
of controller board
and master
Fast "on-
the spot"
error
recognition
Detailed error recognition,
e.g. Periphery error
Detailed
description
Chapter 5.3 Chapter 5.2 Chapter 5.3
Fig. 5/1: Possibilities of diagnosis and error treatment
Bit 2
7
Bit 2
6
Bit 2
5
Bit 2
4
0
X
X
X
1
0
0
1
1
X
0
1
0
1
X
0
X
X
X
X
7654321076543210
VIFB6 - 03/05 5. Diagnosis/Error Treatment
9809c 5-3