Industrial site temperature monitoring

Large industrial / warehouse halls require temperature monitoring on many spots. There are 2 kind of sensors you can use:

RJ11 - 1Wire UNI sensors with max distance 60 meters from the RJ11 port on the (Poseidon2) device.
RJ45 - RS-485 sensors with max distance 1000 meters, daisychain wiring structure from the RJ45 port on the Poseidon2 4002 device.
Combination of RS-485 as main bus and Spider unit + 1-Wire sensors.

This solution describes, how to monitor environment or process conditions remotely with using of Ethernet for data and alert processing. Industrial sites have usually very complex structure and high level of electric/radio jamming. Usage of wireless IoT sensors does not guarantee operation reliability, usage of full ethernet cabling and active components is not cost effective. Usage of standard industrial RS485 bus for sensor network covers most cases.

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Solutions

Issue description:

Temperature monitoring on industrial site, including hall environment and selected processes. There is needed to consider:

Sensor and signal transmission reliability
choice of different temperature range of each sensor
construction variability, etc.

Solutions	Benefits	Solution image
RS-485 sensors with Poseidon2 4002 One ethernet-connected device Poseidon2 4002 can serve up to 26 temperature probes of environments and processes with a total bus length of 1200m.	High scalability of sensors (temperature, construction, producer, costs) High reliability of data transmission Quick and easy fault detection Remote access to monitoring data and alerts
RS-485 sensors + Spider for 1Wire sensors with Poseidon2 4002 One device Poseidon2 4002 can provide temperature monitoring of a large warehouse. Combining RS485 bus and Spider for 1Wire sensors can set up to 42 probes into the monitoring network.	Long range of RS485 bus up to 1200m for 26 sensors Additional 16 short range sensors (each up to 60m) Common sensor ID/name table Remote access to data and alerts
1Wire-UNI sensors with Poseidon2 4002 One device Poseidon2 4002 can connect up to 16 sensors with 1Wire-UNI input.

Poseidon2 4002 topology for RS-485 sensors

RJ45 - RS-485 sensors have maximal distance of 1000 meters, a daisychain wiring structure from the RJ45 port on the Poseidon2 4002 device.

RS-485 sensors & Poseidon2 4002

One ethernet-connected device Poseidon2 4002 can serve up to 26 temperature probes of environments and processes with a total bus length of 1200m.

RS-485 sensors + Spider & Poseidon2 4002

One device Poseidon2 4002 can provide temperature monitoring of a large warehouse. Combining RS485 bus and Spider for 1Wire sensors can set up to 42 probes into the monitoring network.