ABB AC500-S Safety User Manual page 25

ID Behavior
9. No valid safety project can be
generated (PROFIsafe callback
functions are missing and no
safety I/O mapping is created).
10. I call CurTimeEx FB and always
get "0" values on the outputs.
11. ● Set "Enable debug" parameter
to "OFF" on the safety CPU
● Create boot projects for the
safety CPU and the non-
safety CPU
● Execute powering off/on
● Go to CODESYS Safety and
compare boot project CRCs
on your PC and the safety
CPU. The comparison shows
that they are the same, which
is OK.
● Try to create a boot project for
the safety CPU. An error mes-
sage follows because of
"Enable debug" set to "OFF"
for the safety CPU, which is
OK.
● Repeat the comparison of
boot project CRCs on your PC
and the safety CPU. They are
reported to be not equal now
(boot project CRC for the
safety CPU is shown as
CDCDCDCD), which can be
misleading since the boot
project on the safety CPU was
not changed.
12. The serial driver is used to con-
nect to safety CPU. One executes
"Login" command shortly fol-
lowed by "Logout" command in
CODESYS Safety and shortly
after this the "Login" command is
again executed. After second log
in attempt, the communication
error is shown in CODESYS
Safety.
2020/06/19
Potential cause
A potential reason is that you
selected in "Object Properties...
è Access rights" for any of the
POUs in the CODESYS Safety
project tree the following option:
"No Access" or "Read Access"
for all "User Groups" with "Apply
to all" selection.
CurTimeEx FB is not implemented
in the current version of the safety
CPU and is reserved for future
use.
CODESYS Safety does not sup-
port the described use case.
The serial driver does not have
enough time to be re-initialized.
3ADR025091M0208, 12, en_US
Overview of AC500-S safety PLC
Troubleshooting
Remedy
Start CODESYS Safety project,
log in and go to
"Object Properties...
è Access rights" for any of the
POUs in the CODESYS Safety
project tree to set "Full access"
for any of user groups followed by
selection of "Apply to all" .
After this, you can successfully
repeat "Create Safety
Configuration Data" command for
your CODESYS Safety project
from Automation Builder.
Do not use CurTimeEx FB in your
safety application program.
After powering off/on of safety
CPU, the correct boot project
CRC shall be shown for the safety
CPU.
Wait for at least 20 seconds
before executing "Login" com-
mand after "Logout" was per-
formed.
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