5.5.2 Message types in message lists and archives
Message types in message lists and archives
Messages are divided into the following classes:
Term Definition
Operator Input
messages
Operator Input messages are generated when an operator controls process
variables, for example, changes the operating mode of a controller.
● SIMATIC PCS 7 generates operator input messages automatically if you
use faceplates prepared from the libraries.
● If you configure faceplates according to the programming guide
Process
Control System PCS 7;
Creating Blocks for PCS 7, PCS 7-conforming
operator input messages are also available for your own blocks.
Process messages Process messages signal process events that take place in the automated
process, such as limit value violations and operating messages.
● Process messages are predefined for the blocks and therefore do not
need to be configured. Message texts and message priority can be
modified as needed in the object properties for the CFC blocks. These
modifications can also be made centrally in the process object view or
by means of import/export operations.
● Operating messages are a subgroup of process messages. They signal
process values that can be used to evaluate a process-related
component, such as an operating hours counter.
Process control
messages
Process control messages are generated when SIMATIC PCS 7 detects and
signals errors in components within its own system. Such errors range from
failure of a component to a wire break message for a connected I/O signal.
Process control messages are generated by the driver blocks in PCS 7 and
do not need to be configured.
System messages
System messages are messages that are triggered by self-diagnostics of a device. System
messages are usually included in the process control messages or process messages
(operating messages).
5.5.3 Target groups of messages
Target Groups
Message type Target group:
Process
management
Target group:
Operations
management and
recording
Target group: System
specialist and
maintenance specialist
Operator Input messages X X X
Process messages X X X
Message concept of PCS 7
5.5 Understanding messages
Service support and diagnostics (V8.0)
58 Service Manual, 03/2012, A5E02779775-02
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