TP37 datasheet(52/230 Pages) SIEMENS

52 / 230 page

6-2

TP27, TP37 Equipment Manual

Release 01/00

6.1

Types of Message

Event and alarm messages must be configured. Event messages indicate a sta-

tus in the process, whereas alarm messages indicate faults or errors. Event mes-

sages and alarm messages are issued by the PLC. Alarm messages have to be

acknowledged on account of their significance.

System messages are triggered by the Touch Panel. They do not have to be

configured. System messages provide information on operating status of the

Touch Panel and on maloperations or malfunctions in communication.

6.1.1

Event Messages and Alarm Messages

The configuration defines whether a process status is indicated by an event

message or alarm message.

Messages referring to regular sequences of events or states should be catego-

rized as event messages; for example

0000031

10:53:27

04.04.97

Mixing operation completed

Filing level in mixer: 5000 l

Messages relating to disturbances of the process or status should be catego-

rized as alarm messages; for example

0000017

10:59:53

04.04.97

AGR 04

Bottling operation aborted

Bottling valve closed

Alarm messages have to be acknowledged on account of their urgency. By do-

ing so, the operator confirms that he has taken note of the alarm message.

Alarm messages can also be acknowledged by the PLC.

Operational hints can be configured as event messages or alarm messages, in

addition to status messages. If, for example, the machine operator wishes to

start the filling operation but has forgotten to open the bottling valve on the

mixer, he can be requested to rectify the error by means of an event message;

for example

0000037

11:01:02

04.04.97

Open bottling valve

Event and alarm

messages

System messages

Definition

Messages

TP37 Datasheet(PDF) 52 Page - Siemens Semiconductor Group

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