CoDeSys on CCP XS for Bromma Conquip - Research

Student
Joel Ek
Supervisor at CC-Systems
Fredrik Löwenhielm
Dok Nr
1.0
Date
2006-08-08
Rev
PA1
Säk klass
F
Filname
Thesis.doc
CODESYS ON CCP XS FOR BROMMA CONQUIP
The alarm configuration consists of two parts: Alarm Class and Alarm Group.
2.2.4.2.1 Alarm Class
The Alarm class works as a general class to the alarm group and decide base configuration such
as, how to handle acknowledgements and what action to perform when a specific alarm is
detected.
The different actions that can be performed at the occurrence of an alarm event are:
- Save: Internally saved in a log file.
- Print: A message is printed.
- Message: A message will be displayed
- E-Mail: A message will be send to an e-mail address.
- Variable: A variable in <strong>CoDeSys</strong> will be assigned the alarm status and a message.
- Execution: An executable file will start.
The above mentioned message can be defined by a number of predefined information types:
Date, time, priority, message as defined in the specific alarm among others.
2.2.4.2.2 Alarm group
All alarms belong to a specific Alarm group, the common denominator in the group is a
deactivation variable plus saving options for the Alarms in the group. But it is possible for the
alarms in the group to belong to different Alarm classes.
When you add a new alarm to a group the following parameters can be set:
- Expression: Specify the variable or expression that should trigger the alarm.
- Type: Regards to what value the variable should trigger
- Class: Decide what Alarm class it should belong to.
- Priority: Priority level 0-152.
- Message: The text that will be showed in case the alarm is triggered.
If a save action has been selected for a class you must specify in the alarm group where to save
the alarm information. This file will hold the alarm information that is saved for all alarms in the
group [19].
2.2.5 <strong>CoDeSys</strong> SP
3S provide a softPLC, basically a software program that acts like a runtime system for the
developing tool <strong>CoDeSys</strong>. The runtime was developed to function on many different operating
systems and was therefore programmed in ANSI 13 C. The softPLC is programmed by a
programming tool, in this case <strong>CoDeSys</strong> [20].
It is also with these runtimes that 3S get income; the developing tool is free of charge but need a
runtime in order to be of use. Each device must buy a runtime license [21].
13
American National Standards Institute: A non­profit standardization organization
18 (55)