Siemens SIMATIC IPC427C - Notes; Winac Data Storage When Executing Winac ODK Programs; OP; S7 Connections Do Not Function

Restoring and maintenance
5.3 Notes
SIMATIC IPC427C Bundles, SIMATIC HMI IPC477C Bundles
Manual, 07/2009, A5E02280126-02
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5.3 Notes
5.3.1 WinAC Data Storage when executing WinAC ODK programs
Protecting data during power loss
The WinAC Data Storage allows you to configure the integrated NVRAM of the
SIMATIC Embedded Bundle for retentive data storage. WinAC ODK programs, however,
can interfere with storing retentive data on NVRAM.
If you are executing a WinAC ODK program on a computer that has the "NVRAM Storage"
choice available, choose "File Storage" from the WinAC Data Storage tool for the retentive
data and use a UPS (Uninterruptible Power Supply). This action protects the data during a
power loss.
5.3.2 OP/ S7 connections do not function
OP/ S7 connections from remote device
If OP/ S7 connections from remote devices do not function, check whether the
"Allow incoming echo request" check box is selected in the ICMP Settings dialog.
(Windows Firewall > Advanced > ICMP Settings)