Configuring With Step; Rules For H Station Equipment - Siemens SIMATIC S7-400H Manual

8.2

Configuring with STEP 7

The basic approach to configuring the S7-400H is no different from that used to
configure the S7-400 – in other words
creating projects and stations
configuring hardware and networking
loading system data onto the programmable logic controller.
Even the different steps that are required for this are identical for the most part to
those with which you are familiar from the S7-400.
Note
On the S7-400H, you must always load the following error OBs onto the CPU:
OB 70, OB 72, OB 80, OB 82, OB 83, OB 85, OB 86, OB 87, OB 121 and
OB 122. If these OBs are not loaded, the fault-tolerant system goes to the Stop
system mode in the event of an error.
Creating an H station
The SIMATIC H station is offered as a separate station type by SIMATIC Manager.
It allows the configuration of two central racks, each having a CPU and thus the
redundant H station configuration.
8.2.1

Rules for H Station Equipment

The following rules have to be complied with for an H station, in addition to the
rules that generally apply to the arrangement of modules in the S7-400:
The central processing units must be inserted in the same slots in each case.
Redundantly used external DP master interfaces or communication modules
must be inserted in the same slots in each case.
External DP master interface modules for redundant DP master systems should
only be inserted in central racks and not in expansion racks.
Redundantly used modules (for example, CPU 417-4H, DP slave interface
module IM 153-2) must be identical – in other words, they must have the same
order number and the same version, and the same firmware version.
S7-400H Programmable Controller Fault-Tolerant Systems
A5E00068197-04
Configuring with STEP 7
8-3