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ACM 150
Alarm Simulation
For testing communication links to external devices via Modbus/TCP output, such as
a PLC connection, the ACM 150 monitor Software v2.10 and higher features Alarm
Simulation. For security reasons this screen is password protected and may only be
activated with the ACM 150 monitor in Manual Mode.
When simulating an alarm on a specific port and for one or more gases, a message
assuing a concentration of Alarm Level + 5% for each selected gas is sent via
Modbus/TCP.
For each selected gas the simulated alarm event is displayed on the Alarms screen
of the ACM 150 user interface. Simulated alarms show up as auto-cleared alarms
and do not trigger the red Alarm icon on the title bar.
In the screenshot below, the top four alarms are simulated while the lower two
alarms are for real. Clicking any Remove from List button for simulated alarms will
delete all simulated alarms at once.
Figure 59. Warn and alarm screen
To simulate alarms perform the following steps:
•
Go to Diagnostics.
•
Login with a password that has permission for this screen. The default as
shipped is Administrator (or a user with Access Level = 3 or greater).
•
Go to Manual Mode Op and click the Switch to Manual Mode button.
•
When the title bar reads Manual Mode go to Alarm Simul. to see the screen
illustrated on the next page:
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