Siemens OP15, Equipment Manual, Page: 16 / 177

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Manual OP5, OP15
( ) J31069-D0840-U001-A2-7618
Alarm messages may contain process values. Process values are displayed
either numerically – for example
Motor speed 4500
or symbolically – for example
Motor speed too high
,
where a specific control value is assigned to too high .
This type of message has a higher display priority than an event message. If
an alarm message is issued, any event message or screen that is being dis-
played is replaced with a flashing alarm on the display.
The classification of a message as an alarm message is made at the configu-
ration stage.
When a product is made up of various ingredients in certain ratios, this infor-
mation is stored in a so–called recipe.
Take orange juice for example. Its production and bottling requires that
orange concentrate and water be mixed in a certain ratio. These values are
stored as variables in a recipe.
Each recipe can be made up of several data records containing different val-
ues for the recipe.
The data can be edited in the OP, transferred to the PLC and read out from
the PLC.
In the OP, the recipes are combined by recipe number and title in a recipe
directory.
Information text is additional information and hints for operators referring to
the current display on the screen (event messages, alarm messages and
screens). This means that additional troubleshooting information can be dis-
played when, for instance, an alarm message is issued.
Information text can also be displayed by pressing a key, if required, when
the LED of the HELP key is on.
Messages can be printed in online mode by means of the printer connected to
the OP. Furthermore, there is a possibility of printing all the event and alarm
messages that have accumulated in the buffer concerned.
Recipes
Information text
Logging
Product Description