Ethernet device monitors sensors
An
Audon Electronics product story
Edited by the Engineeringtalk editorial team
Sep 17, 2007
When temperature or humidity goes outside the pre-set band the Poseidon 3266 can send user-defined email alarm messages and toggle the output relays.
The Poseidon 3268 is a simple Ethernet-based stand-alone device which can send an email alarm when up to four monitored temperature or humidity sensors exceed their defined range.
It also has four contact-closure inputs which can be used to trigger alarms, and two relay outputs which can be used to reset servers or switch on a fan.
Temperature or combined temperature/humidity sensors can be connected via RJ11 cable using the one-wire protocol.
Sensors are simply connected in a serial chain using RJ11 cable.
These can be up to 10m away from the Poseidon 3268.
The user can assign a name to each sensor and also define high and low alarm limits.
When the parameter goes outside these limits, the Poseidon 3266 can send user-defined email alarm messages and toggle the output relays.
Once the Poseidon 3268 is connected to the LAN, the user can run the free UDP setup utility, which will search the LAN to find all attached devices.
The user can then specify the desired network address parameters.
Once this is done, the user can access the I/O data from a web browser.
There is also a flash-based version.
Sensor values and alarm status information are available from XML files.
The Poseidon 3268 also supports the Modbus/TCP protocol, so it is easy to integrate with common Scada packages such as DAQFactory.
Typical applications include monitoring conditions in server rooms, switchboards, cold-storage buildings, freezers and fridges and other environmental monitoring tasks.
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