General Information - Siemens CPU417-4 H Produktinformation

CPU 417-4H
5.

General Information

The following table lists the differences between operation of a standard
S7-400 CPU and a CPU 417-4H
Function
Use of symbol-oriented
messages (SCAN)
Multicomputing (OB60, SFC35)
Startup without configuration
loaded
Insertion of DP modules in the
module slots for interface
modules
Connection of S5 modules via IM
or adapter casings
Self-test after POWER ON
Redundancy error OBs (OB70,
OB72)
Preset priority class for OBs 81 to
87
Response of the CPU upon
overflow of the start information
buffer in priority class 26
Response of the CPU upon
overflow of the startup
information buffer in priority
class 28
20
Standard S7-400 CPU
Yes
Yes
Yes, if no IMs, no CPs and
FMs are plugged in and no
expansion units are
connected
Yes
Yes
No
No
26
STOP (event W#16#4541)
This event cannot occur.
CPU 417-4H in Separate
Operation or in
Redundant System
Mode
No
No
No
No. The module slots are
only intended for the
synchronization
submodules.
No
Yes
Separate operation:Yes,
but no calls
Redundant Mode: Yes
25
Call OB80 in priority class
28. If OB not loaded,
STOP.
Entry in diagnostic buffer
A5E00073168-02