Example Use Cases for Teeken

1. Catch alarms in a conveyor system and notify maintenance personnel
2. Alert specific service personnel from remote biogas installations
3. Record and archive key performance indicators (KPI)
4. Provide production planning with up-to-date production counters
5. Ad-hoc alarming and logging during implementation and start-up phase
6. Show current production counters on a large screen

Your scenario? Ask me about how Teeken can help.

Catch alarms in a conveyor system and notify maintenance personnel

Keywords: Low-Cost, S7, MPI

Setting

• A manufacturer of farm machines uses a large, refurbished chain conveyor system in his paint-shop department.
• The waggons on the chain sometimes get stuck because of residues of paint or sandblast, but also
• drive long ways without personnel around to detect a problem
• In case of a problem, the whole chain is stopped and maintenance has to walk long ways to find out what went wrong

In this case, Teeken

• can monitor the alarms
• immediately inform the maintenance people with a detailed message

In addition, the type of alarm and the time of stop and restart can be logged into a file for weekly or monthly analysis.

Solution

This is a definite low-cost solution:

• A surplus WindowsXP PC for Teeken is installed into the controller cabinet
• the connection to the S7-315 PLC is made with a left-over MPI cable, and
• the PC is connected to the company network and can send e-mails
• the service personnel, 4 persons, are equipped with Android mobile phones

The Teeken configuration contains

• 1 source (the PLC)
• 1 node for every alarm bit
• 1 receiver that will send e-mails, see below
• 1 additional receiver for the team manager
• Only one directory for all nodes

Notification

• The company decides to use pushover.net to send push notifications in case of an alarm
• The main Teeken receiver is configured to send e-mails to one specific user-id at pushover.net
• The individual mobile phones are managed on the pushover site
• The additional receiver will send an e-mail to the team manager

Now, when an alarm occures, Teeken will send an e-mail containing the corresponding message text to pushover.net. Pushover.net will send out push notifications to the cell phones, to inform the service people.

The additional e-mail to the team manager will be automatically filtered into a folder. The team manager has an always up to date status and can gather the details for each alarm from his crew.