Related Manuals for E+E Elektronik EE240
Summary of Contents for E+E Elektronik EE240
- Page 1 User Manual EE240 Wireless Sensor Network for Humidity, Temperature and CO BA_EE240_e // v8.2 // Modification rights reserved // 350118...
- Page 2 E+E Elektronik Ges.m.b.H. does not accept warranty and liability claims neither upon this publication nor in case of improper treatment of the described products. The document may contain technical inaccuracies and typographical errors. The content will be revised on a regular basis.
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Page 3: Table Of Contents
Functional Test for the EE244 and the entire EE240 Wireless Sensor Network .........24 Loop Calibration ............................25 Troubleshooting ..........................25 Spare Parts ............................25 10 Technical Data ...........................26 11 Annex A: Setting the Modbus Communication in an EE240 Wireless Sensor Network .....27 12 Annex B: Modbus Reading Examples .....................32 User Manual EE240 Wireless Sensor Network... -
Page 4: General
The user manual may not be used for the purposes of competition without the written consent of E+E Elektronik® and may not be forwarded to third parties. Copies may be made for internal purposes. All information, technical data and diagrams included in these instructions are based on the information available at the time of writing. -
Page 5: Environmental Aspects
3.1.1 General An EE240 wireless sensor network consists of an EE242 base station, up to 500 EE244 and EE245 transmitters and up to 50 EE245-R routers. The EE240 wireless sensor network uses the IEEE 802.15.4 radio standard. The RF modules operate on 2.4 GHz with a power of 8 dBm. -
Page 6: The Structure Of The Ee240 Wireless Sensor Network
• Four analogue outputs • Display (optional) The EE242 base station features a web server, which facilitates the setup of the entire EE240 wireless sensor network and the receving of the measured data. For details see chapters 4.1 Base Station and 6 EE240 Network Configuration. -
Page 7: Ee244-R Router
Mounting / Functional Description Base Station An EE240 wireless network consists of an EE242 base station and up to 500 transmitters and up to 50 routers. Up to 10 connections (from routers or transmitters) can be established to a base station. The Ethernet interface, RS485/Modbus and Webserver of EE240 allow for easy configuration of the entire network. -
Page 8: Operating Components
/ router onto the wall with four screws max 4.2 mm diameter (not in the scope of supply). 2. Mounting onto DIN rail: use the optional mounting kit (see accessories in the EE240 data sheet) After wiring according to chapter 4.2.2 EE244 Electrical Connections, mount the front cover with four screws (in the scope of supply). -
Page 9: Ee244 Electrical Connections
1. +Ub 8 - 28 V DC SELV 2. n.c. 3. GND 4. n.c. Front view of the device The power supply unit shall feature a fuse with ≤ 8A Fig. 6 EE244 external power supply User Manual EE240 Wireless Sensor Network... -
Page 10: Operating Components Of Ee244 And Ee245
1. Interval rotary switch “TIME“ 4. Battery compartment 2. Push-button “CONNECT“ 3. Jumper “J1“(EXT/BAT) EE893 connector pins EE99-012 connector pins 5. EE893 pluggable 6. EE99-012 pluggable measurement module humidity measurement module Fig. 9 EE245 components User Manual EE240 Wireless Sensor Network... - Page 11 Please mind the display orientation, see Fig. 7. Furthermore, an EE244 originally without display can be fitted with display. Order number for a replacement display + front cover is D07W, see accessories in the EE240 data sheet as well as chapter 9 Spare Parts.
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Page 12: Ee245 Mounting
EE244-R and the probes connected to it. For details refer to chapter 4.2.3. The receiving and re-transmitting of information from the transmitters and routers connected to it is continuously active. User Manual EE240 Wireless Sensor Network... -
Page 13: Ee240 Network Setup
The stable and failure free function of the EE240 network, as well as its smooth setup and putting into operation, depends on the topology of the network, which includes the type and the hardware setup (remote probes, remote antennas) of the transmitters and routers, their exact locations and the wireless signal strength at each network component. -
Page 14: Operation Of Parallel Ee240 Sensor Networks With Overlapping Radio Ranges
Operation of Parallel EE240 Sensor Networks with Overlapping Radio Ranges Each EE240 wireless network is built around one EE242 base station. Depending on the required transmission range and on the number of transmitters, it may include one or more EE244-R routers. All devices are linked directly or indirectly to one dedicated EE242 base station. -
Page 15: Ee240 Network Configuration
5. Enter the default IP address of the EE242 base station (192.168.0.64) in the browser address line. Limited Liability E+E Elektronik® is not liable for any direct or consequential damages (for example, but not restricted to loss of earnings, interruption of business, loss of information and data or any other financial losses), which result from the installation, usage and also impossibility of usage of a software product from E+E Elektronik®... - Page 16 “Management”, e.g. the IP address of the EE242 base station or the password for Username “Reader” and “Admin” (for details see chapter 6.2.5 Management). Fig. 16 EE242 web service menu items User Manual EE240 Wireless Sensor Network...
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Page 17: Menu Items
Fig. 17 Menu item “Overview” The webserver data refresh interval is 5 seconds. 6.2.2 Transmitters Transmitter List Transmitter Details Probe Status Transmitter Status Fig. 18 Menu item “Transmitters” and transmitter details User Manual EE240 Wireless Sensor Network... - Page 18 Type of sensing probe and serial number. Measurand: Port 1 Port 2 Port 3 Indicates the active measurand of the sensing probe (Temperature, Humidity, CO , ..). Measured Value: Latest transmitted measured value. Fig. 20 Transmitter ports User Manual EE240 Wireless Sensor Network...
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Page 19: Outputs
(b) Mapping a specific sensing probe (with a defined serial number) to an analogue output: This configuration maps ONLY this specific sensing probe to the analogue output. It does not matter to which transmitter the sensing probe is a connected. User Manual EE240 Wireless Sensor Network... -
Page 20: Modbus Map
Analogue output value in case of failure / alarm. 6.2.4 Modbus Map Fig. 24 List of Modbus registers Click on the link “Add new Modbus Register“ to create new registers / variables. The Edit Modbus Register Configuration dialogue will open. User Manual EE240 Wireless Sensor Network... - Page 21 Deleting registers: Click the “Edit“ link in the “Modbus Register Map“ list to change the configuration of any register. Click the button “Delete Register“ to delete the selected register. Fig. 26 Deleting a register User Manual EE240 Wireless Sensor Network...
- Page 22 Serial Address: Slave ID for Modbus RTU communication; set to 0 to disable the protocol Serial Mode: RTU or ASCII Baudrate: 9 600, 19 200, 38 400 or 57 600 Parity: Even, Odd, None (1 Stopbit) or None (1 Stopbits) Databits: 7 or 8 User Manual EE240 Wireless Sensor Network...
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Page 23: Management
- “Closed System“: In this mode the base station must be switched to “Connect Mode” before it can accept connection requests (see chapter 5 EE240 Network Setup). Cable Network IP Address Assignment: - Manual (static IP): enter or change manually the IP address of... -
Page 24: Adjustment And Calibration
A test of correct function and accuracy of the wireless network can be easily performed with the optional reference probes, see accessories in the EE240 data sheet. The reference probes supply fix values for RH and T. Simply plug the reference probe instead of any sensing probe of EE244 and check the indication on the transmitter display or / and the data received by the base station. -
Page 25: Loop Calibration
For replacement filer caps for the probes please also see data sheet accessories at www.epluse.com/EE240. RH measurement module for EE245 EE99-012 replacement module for EE245 0...2 000 ppm EE893-02C2 0...5 000 ppm EE893-05C2 Display and front cover for EE244 D07W User Manual EE240 Wireless Sensor Network... -
Page 26: 10 Technical Data
EN 61326-2-3 Industry ICES-003 Class A 1) Choice between batteries and external power supply via jumper on the electronics board. 2) Battery lifetime > 1 year with a measuring data transmission every 5 min. (for T / RH) User Manual EE240 Wireless Sensor Network... -
Page 27: Annex A: Setting The Modbus Communication In An Ee240 Wireless Sensor Network
11 Annex A: Setting the Modbus Communication in an EE240 Wireless Sensor Network In the menu Management (1) set the communication parameters for the serial RS485 interface (2) User Manual EE240 Wireless Sensor Network... - Page 28 The Edit Modbus Register Configuration dialogue appears and the parameters of the register can be set. The system automatically assigns the Register Number and other default parameters, all these values can be changed according to user preferences as described below. User Manual EE240 Wireless Sensor Network...
- Page 29 Assign to the register (8), in this case the Register number #12, the desired measureand. Choose the parameter (9), e.g. temperature in °C. By clicking on Create Register (10), the register setup is saved and available for reading. The newly created register appears in the Modbus Map page (11) (12). User Manual EE240 Wireless Sensor Network...
- Page 30 Example of data reading from register #12: A common Modbus program (e.g. “ModbusMAT”, free download from https://modbus-rtu-server. software.informer.com/1.1/ ) shows the decoded value (13). The following screenshot shows the settings (14). User Manual EE240 Wireless Sensor Network...
- Page 31 The register has been set as Data Type: Float (32 bit), menu Edit Modbus Register Configuration (page The received bytes 412F 3333 are decoded according the IEEE754 standard which results in a value of 10.949998. An online converter can be found at http://www.binaryconvert.com/convert_float.html. User Manual EE240 Wireless Sensor Network...
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Page 32: 12 Annex B: Modbus Reading Examples
The data is encapsulated according the Modbus standard described in the Modbus Application Note AN0103 (available at www.epluse.com/EE240), with the command line listed below to be sent for reading the temperature at register #2 of slave ID 65 (hex 41). - Page 33 Decoding the 4 bytes (41 96 F5 C3) according the IEEE754 format results in 18.870000 °C Please note: In the EE240, the Byte pairs 3 and 4 are not inverted with the byte pairs 1 and 2. So for decoding, the sentence in chapter 7.2 of AN0103 is not valid! Effect of byte order change (Main menu ►...
- Page 34 #2 of slave ID 65 (hex 41). Register 01, counted from 0, means register #2 (number set in the EE240 webserver) Response if byte order is MSB first (there is no CRC): Decoding the 4 bytes (41 97 C2 8F) according the IEEE754 format results in 18.969999 °C...
- Page 35 Please note: In the EE240, the Byte pairs 3 and 4 are not inverted with the byte pairs 1 and 2. So for decoding, the sentence in chapter 7.2 of AN0103 is not valid! Effect of byte order change (Main menu ► Management ► Modbus): The Tx is the same (marked yellow, see below), but the response is different according the selection of the Modbus byte order: MSB first (Big Endian) is the normal way.
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