Available from Audon Electronics are a range of low cost temperature, humidity and barometric pressure sensors with an RS485 output. These units can communicate via a simple ASCII "Adam 4000 series" compatible protocol or the industry standard MODBUS RTU protocol for use with common SCADA software.
Measured temperature, relative humidity, barometric pressure are converted to serial output with a RS485 interface. Transmitters are available in wall-mount, duct-mount and bar types. Also, types with T+RH probe on a cable are available.
They featuring a large dual line LCD for local display of temperature, humidity, pressure or other calculated value and the microprocessor design ensures maximum long term stability and fail indication.
The transmitter works with ModBus RTU communication protocol or with ADAM compatible ASCII protocol. The protocol is user selectable in special configuration mode by means of the PC.
http://www.audon.co.uk/temp485.html
Available from Audon Electronics is the EDAM-9000 range of low-cost Ethernet based industrial data acquisition and control RTU devices. The EDAM-9000 range is based on common 10/100 Ethernet networking standards and supports the popular Modus/TCP protocol. The EDAM-9000 also supports UDP protocol over Ethernet networking.
There are 6 models in the range covering voltage, thermocouple and PRT analogue inputs, digital inputs, pulse counting and transistor outputs. All have a wide 10-30VDC power supply range, full opto-isolation and are housed in robust DIN rail mount enclosures.
Users can easily add EDAM-9000 I/O modules to existing Ethernet networks or use EDAM-9000 modules in new or existing SCADA systems. Prices start from just £99 ex VAT.
http://www.audon.co.uk/edam9000.html
Available from Audon Electronics is a new range of low-cost Modbus based remote IO units which provide a simple way of integrating analogue or digital signals to supervisory SCADA systems. There are several models in the range from voltage, current, thermocouple and PT-100 inputs, voltage and current outputs and digital and relay I/O. Supplied with the IO Studio configuration software. The optional DAQ Studio software can be used to provide a data acquisition, trending and alarm management interface for the PC. Also compatible with all SCADA packages such as DAQFactory.
A new line of Modbus based IO modules for data acquisition and other applications. These IO modules offer good reliability with a low-cost solution for distributed control applications. They are compact, easy to integrate with existing Modbus networks and simple to use for the end user. Various types of IO modules are available for different kinds of requirements. All IO modules have LED indications of IO status and fault diagnostics. All IO modules have an ioslated 2 wire RS485 interface. The use of Modbus RTU protocol allows for easy integration with most SCADA software packages such as DAQFactory.
There are 4 digital I/O modules, the 16DI has 16 digital inputs which also double as 32-bit pulse counter inputs, the 16DO has 16 open collector transistor outputs, the 4RO has 4 mains capable power relays, and the 8DIO is a combination unit with 8 digital inputs and 8 transistor outputs.
The analogue I/O modules include the 8AIIS and 8VIS which accept 8 x 4-20mA or voltage inputs, the 8TCS which accepts 8 thermocouples including ,K,E,T,N,B,S,R,mV, C,D and G types, the 6RTD which accepts 6 x 3-wire RTD temperature probes and the 8AOI and 8OV which are 8 channel 4-20mA and voltage output models. There is also the DAIO combination unit with 2 analogue inputs, 1 analogue outputs, 4 digital/counter inputs, 2 transistor outputs and 2 RTD inputs.
IOStudio is a free software package supplied with the units used to configure the communication settings for IO modules on the Modbus network. Once a module is detected, it is possible to view real-time data of the module directly on the PC and it can be used for diagnostic purposes too.
Available ex-stock, prices start at only £99.
The Poseidon 3268 is a simple Ethernet based stand-alone device which can send an email alarm when up to 4 monitored temperature or humidity sensors exceeds their defined range. The Poseidon 3266 also has 4 contact-closure inputs which can be used to trigger alarms on state change and there are 2 relay outputs which can be used to reset servers, or switch on a fan, etc.
Temperature or combined temperature/humidity sensors can be connected via RJ11 cable using the 1-wire protocol. Sensors are simply connected in a serial chain using RJ11 cable. These can be up to 10m away from the Poseidon 3268. You 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, you can run the free UDP setup utility, which will search the LAN to find all attached devices. You can then specify your desired Network address parameters. Once this is done, you can simply access the I/O data from a web browser. There is also a flash-based version.
All sensor's values as well as alarm status information are available from XML files (temper.xml) and any application can log it from XML tags. 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, switch-boards, cold-storage buildings, freezers and fridges and other environmental monitoring tasks.
