Siemens SIMATIC NET CP 243-1 IT Technical Manual page 16

Features and Functions
− Storage of own HTML pages and Java Applets in the file system of the CP
243-1 IT
−
Provision of Java Applets and Beans for development of own HTML pages
and Java Applets
−
User administration for up to 8 users with user-specific granting of rights for
access to files, status information and process variables.
• Configuration
−
Programming, configuring and diagnosing an S7-200 system from a geo-
graphical distance (e.g., program upload and download or status indica-
tions) via Industrial Ethernet and STEP 7 Micro/WIN 32
−
Exchanging modules possible without having to program/configure the
Ethernet functions again (Plug & Play). Since the configuration of the IT
functions is stored on the CP 243-1 IT, this must be loaded again to the
module when the CP 243-1 IT is replaced.
• Watchdog timer
The CP 243-1 IT is equipped with a watchdog circuit. The watchdog starts each
time the CP 243-1 IT boots. The watchdog monitoring time is usually 5 seconds.
Tolerances due to components may increase this time to 7 seconds. If watch-
dog monitoring triggers, the CP 243-1 IT is automatically reset. This restarts the
CP 243-1 IT. During this time, the CP 243-1 IT reports the "Parity Error" to the
S7-200 CPU. Handling such an error is described in the documentation of
STEP 7 Micro/WIN 32.
• Ability of preset MAC addresses (48-bit value) to be addressed
The MAC address is assigned to each CP 243-1 IT at the plant. The MAC ad-
dress is located on an adhesive plate under the upper front flap. An IP address
can be assigned to the CP 243-1 IT via the preset MAC address using BOOTP.
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CP 243-1 IT
J31069-D0429-U001-A0-7618