Overview
1.7 Functional scope with WinCC flexible
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01
29
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 transfers the following
diagnostics:
● 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).
1.7
Functional scope with WinCC flexible
The following tables show the objects that can be integrated into a project for a
Mobile Panel 277F IWLAN.
Note
The specified values are maximum values of the individual objects. Simultaneous use of
multiple objects with their maximum value can lead to problems in the active project.
Alarms
Object
Specification
Mobile Panel 277F IWLAN
Number of discrete alarms
4.000
Number of analog alarms
200
Length of the alarm text
80 characters
Number of tags in an alarm
Max. 8
LEDs
Alarm line, Alarm window,
Alarm view
Acknowledge error alarms individually
Yes
Acknowledge several error alarms simultaneously
(group acknowledgment of alarm groups)
16 alarm groups
Edit alarm
Yes
Alarm
Alarm indicator
Yes
ALARM_S
Display S7 alarms
Yes
Alarm buffer capacity
512 alarms
Simultaneously queued alarm events
Max. 250
View alarm
Yes
Delete alarm buffer
Yes
Alarm buffer retentive
Line-by-line printing of alarms
Yes
Tags, values and lists
