Principle Of Operation Of Option Handling Without Reserve Modules - Siemens SIMOTION Function Manual

For more details, please refer to the SIMOTION SCOUT online help.
5.2.1

Principle of operation of option handling without reserve modules

Principle
In the case of option handling without RESERVE modules, the configuration data are
insufficient to compare the preset configuration with the actual configuration. In addition,
information about the existing options is still required. This must be sent via the user data to
the IM151‑1. In order to be able to receive the user data, the IM151‑1 initially goes formally
into cyclic data exchange after the configuration data have been received. However, direct I/
O access does not yet take place. Output data are rejected, the input data are zero. The
IM151‑1 only responds to the output data that you have to connect to a power module (O or
SO). A preset-actual test isn't possible until this option information is available. Only after this
can the I/O devices be operated.
Since the option information is stored retentively in the IM151‑1, this intermediate state only
exists during the first commissioning or reconfiguration/retrofitting.
Please note the following:
Note
In this operating mode, the IM151‑1 may not be operated as a subscriber (F-data exchange
broadcast) on PROFIBUS or PROFINET.
● Data record requests to option slots that do not exist induce a fault (80B0).
● If the IM151-1 is operated without configuration or without a CPU (DP master), it supplies
● In isochronous operation, the designed configuration generally applies for the time
● There are no limitations when "packing" digital modules. Theoretically, the module to which
Note
The configured slot numbers (slot numbers in data records, and for events such as
diagnostics and interrupts) always apply for slot addressing.
Basic Functions for Modular Machines
Function Manual, 04/2014
the configuration as it exists. This is relevant for wiring test tools, since the actual slot
numbers, without gaps from 1 to n, are used there for status/control.
calculation (Ti, To, Tdp).
the byte address is assigned in the preset configuration can be missing in the structure.
Activating and deactivating components and technology objects
5.2 Option handling for ET 200S with reserve modules
69