2 diagnostic objects – BECKHOFF EL1904 User Manual
Page 39
Operation
EL1904
37
4.4.2 Diagnostic
objects
CAUTION
Do not change CoE objects!
Do not change any of the CoE objects in the TwinSAFE terminals! Any modifications
(e.g. via the TwinCAT System Manager) in the CoE objects permanently put the
terminals in the fail-stop state or result in unexpected behavior of the terminals!
The CoE objects FA80
hex
indicate the current internal temperature values of the EL1904.
Index FA80
hex
: Internal temperature values
Index
Name
Meaning
Flags
Default
FA80:01
Temperature 1
Temperature measurement 1
RO
0
bin
FA80:02
Temperature 2
Temperature measurement 2
RO
0
bin
The CoE objects 800E
hex
display further diagnostic information.
Index 800E
hex
: Diagnostic objects
Index
Name
Meaning
Flags Default
800E:0
Diag
The following sub-indices contain detailed
diagnostic information.
RO
800E:0A
Sensor test error
Bit
Error during the sensor test
RO
0 1
bin
Error at input 1
0
bin
1 1
bin
Error at input 2
0
bin
2 1
bin
Error at input 3
0
bin
3 1
bin
Error at input 4
0
bin
800E:0B
Error during two-
channel evaluation
Bit
Error during the contiguous evaluation of
two channels, i.e. the two channels
contradict each other.
RO
0 1
bin
Error in the first input pair
0
bin
1 1
bin
Error in the second input pair
0
bin
800E:0C
Error in the safety
mat operating
mode: input pair
disagree
Bits Error in the input pair
RO
1, 0 11
bin
Error in the first input pair
00
bin
3, 2 11
bin
Error in the second input pair
00
bin
800E:0D
Error in the safety
mat operating
mode: external
supply
Bit
Error in the test pulses in the safety mat
operating mode; i.e. the terminal has
detected an external supply.
RO
0 1
bin
Error at input 1
0
bin
1 1
bin
Error at input 2
0
bin
2 1
bin
Error at input 3
0
bin
3 1
bin
Error at input 4
0
bin
Note
Differing diagnostic messages possible
Due to the variable order or execution of the test series, diagnostic messages differing
from those given in the table above are possible.