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TANK LEVEL ALARM
PLC OPTION

The PLC option is designed to provide a contact close (or open) to your PLC though a communications cable.

PLC Output
PLC Output

DETAILED DESCRIPTION...

The PLC output option consists of a circuit board and a cable to connect to your PLC. Since 24VDC power is usually available at a PLC, the drumalarm or tank alarm is powered by the available 24VDC.

The circuit board inside the electroncis enclosure allows for a local buzzer and LED, and control as well as at your PLC.

Different behaviours are set with jumpers; you can select N.O or N.C. relay output. You can choose if there is a snooze alarm or not, (after pressing the button to silence the buzzer). Or if the LED should continue to blink after the silencing button is pressed. Also the orientation of the alarm can be changed from high to low.

The drumalarm or tank alarm is connected to your PLC by a 8-conductor cable with thick 0.032" PVC insulation. Default length is 10 ft. Longer lengths can be ordered by the foot.

PLC Output

There is also a broken cable detection alarm. This has a different LED and buzzer pattern than the level alarm. (3 seconds on, 3 seconds off instead or continuous)

The standard output to the PLC is a contact close. If you prefer a voltage output instead, no problem we'll set it up for you.

Therefore the 8-conductor cable uses two conductors for input power to the circuit board, two for a dry-contact output to your PLC, and two for broken cable detection.

PLC OUTPUT CABLE ON A TANK ALARM

PCBLevelController

JUMPER TO SET BEHAVIORS

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INSTRUCTIONS - RELAY
INSTRUCTIONS FOR 24V OUTPUT
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Multiconductor cable
DRUM ALARM WIRELESS

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PLC Output
DRUM ALARM WIRELESS

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