Industrial applications

How (not) to destroy a relay

A relay, being a switching element, is usually regarded as a simple component. However, it is relatively easy to destroy if it is used to switch unsuitable loads.

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How to reset devices

Factory default reset is used for the following reasons: when a password is forgotten, the IP access filter is blocking access to the device interface or if a customer wants to have the device in factory default after tests or for sale to the customer. In the case where the device is accessible we can execute reset via WWW interface (HWg-Ares via AresConf). In other cases we have different options as follows in this Application note

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Ethernet remains the favourite network for both IT and industry

HW group produces IoT products for environmental monitoring, energy consumption monitoring and industrial applications. Poseidon2, Damocles2, and STE2, the industry-leading environmental monitoring products, use the wire-based Ethernet and Wi-Fi standards that are most suitable for the industrial environment. For mobile applications or technologies, where standard Ethernet is not available, we designed the ARES product line with GSM / GPRS connectivity, and also the LTE, which offers the same features with higher bit rate.

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International APN Settings for Mobile Broadband Network Operators

These APN settings you can use for your HWg-Ares GSM Thermometer. HWg-Ares 12 is a remote environment monitoring solution that can be used at any place with GSM coverage. Contains a battery for several hours of backup. Alerts to power failures by email or SMS (up to 5 phone numbers). Data can be read into HWg-PDMS (free software), connected to a Web portal or to a SCADA/NMS system.

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Changing the default configuration of Poseidon2 and Damocles2 - Disabling TCP settings

The news is that the TCP setup will be disabled in the default configuration. The default configuration is affected and this braks the backward compatibility. This will not be an issue for 99% of customers, but we need to inform you in advance. If you are updating an existing unit, this will not affect the setting. It will only be disabled on new units and by resetting to factory defaults.  You can get the latest firmware HERE.

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IP Access Filtering in Poseidon2 and Damocles2 units

Ip access filter define a range of trusted IP addresses that are allowed to access the Poseidon2 and Damocles2 units over HTTP and SNMP. Each protocol has its own  table. Always only the IP addresses range is set, using the default IP address and the range around the entered value (mask), following the pattern where AND is bit multiplication. Access is granted if condition above is true.

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DHZ 5/63-M-Bus

Single-phase electrocity meter 63A with M-Bus

  • Power: 1x230V / 63A
  • Measurement: Direct
  • M-Bus interface: Yes

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