Siemens Second Wind, Function Manual

Page: 101 / 154

Diagnostics
7.2 Diagnostics
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
101
Dialog box Possible reactions Situation Additional information
Test enabling switch
Both enabling switches must be
tested to ensure they are
operational. Fully press both
enabling switches until the panic
position is reached.
The operator must
press both enabling
switches until the
"Panic" switch
position is reached.
The operator has started the
project. The operator must test
the functions of the enabling
switches.
Integrating the HMI device
(start project) (Page 86)
Error during effective range
logon
Error during effective range
logon. The enabling switch
remains deactivated.
"OK" button An error occurred during logon
of the HMI device to the
effective range. The operator
cannot use the enable switches
to control the process.
Enabling switch discrepancy
error
Please release the enabling
switch.
The operator must
release both
enabling switches.
The HMI device detects a
discrepancy at one of the two
enabling switches in switch
position "Enable".
Discrepancy error during
enabling (Page 88)
7.2 Diagnostics
Definition
Use the diagnostics function to determine the following:
● Does signal acquisition function without errors on the HMI device?
● Does the safety module work properly?
Diagnostics function of the HMI device
HMI device diagnostics conforming to PROFINET IO standard IEC 61784-1:2002 Ed1
CP 3/3 are available for the standard application.
The diagnostics function cannot be parameterized. The diagnostics are always activated and
are automatically made available by the HMI device in STEP 7 in the event of an error.
In addition to the safety-relevant part, the diagnostics function returns the following
diagnostics data (if still possible):
● Communication error
Communication between the HMI device as I/O device and the F-CPU as I/O controller
has been interrupted (for example, due to incorrect PROFIsafe address or missing WLAN
connection).
Reading diagnostics information
Open the module diagnostics in STEP 7 to determine the cause of the error. For detailed
information, refer to the STEP 7 Online Help.
You can also read the diagnostics functions by calling SFB 52 or SFB 54 in the standard
user program. For detailed information, refer to the "System and standard function"
reference manual.