Product description
2-4 Application Module FM 458-1 DP - User Manual
A5E01078222-02 Edition 03.2009
NOTES
The following restrictions exist when using the FM 458-1 DP application
module in an S7-400 expansion controller (EC):
Rack number of the EC 1..6
EC is a UR1/UR2
The coupling is realized through a K-bus capable IM pair:
IM460-/461-0, or IM460-/461-3
The S7-CPU module must read-in signals from the SIMATIC I/O and
send these to the FM 458-1 DP.
When configuring/engineering the system, please ensure that the
maximum load capability of the S7 power supply module is not exceeded
as a result of the current drawn by the FM 458-1 DP module.
When using an IM module, which is used to transfer power to other
modules, its maximum load capability must also be observed.
Ground-free operation is not possible when using the EXM 438-1.
FM 458-1 DP is an “open type” and therefore only can be installed in
closed switch cabinets or switch rooms.
Fig. 2-1 FM 458-1 DP application module with two expansion modules
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