WebLog120 M-Bus Datalogger / Webserver for 120 Meters Bedienungsanleitung Hardware User Manual
WebLog120 Content 1. Features .................................................................................................................................................... 3 2. Installation ................................................................................................................................................. 3 2.1 Illustration of principle ......................................................................................................................... 3 2.
WebLog120 1.
WebLog120 2.3 Connectors The figure below shows the connections in a plan view: All terminals are pluggable, making wiring and replacing the WebLog120 easier in the event of a fault. Attention: Please make sure to put the terminals back correctly in the intended place after removing them. Incorrectly positioned terminals can lead to defects.
WebLog120 Lower terminals (from left to right): Type Signal Description LAN 1 10/100 MBit RJ45 Ethernet socket for a network connection LAN 2 10/100 MBit RJ45 Ethernet socket for a network connection MICRO-SD Holder for an optional micro SD card (push-push mechanism) USB 1 USB host port #1 USB 2 TERM ON / OFF RS485 B- / A+ / GND USB host port #1 Slide switch for switching the 120Ω terminating resistor of the RS485 on and off RS485 interface, 2-wire, B = - / A = + / GND = ground reference 2.
WebLog120 3. Description of functions The WebLog120 is an M-Bus data logger and web server. Up to 120 meters (= standard loads á 1.5mA) can be connected directly to the internal M-Bus level converter. The device can manage and read a total of up to 1000 devices if appropriate M-Bus Repeaters (PW100 / PW250) are used as an extension. The integrated web server enables complete setup and operation via the network interface (LAN) or the optional WLAN module with a web browser.
WebLog120 3.1 Interfaces The transparent RS232C and Repeater interfaces are always connected directly to the internal M-Bus level converter when the WebLog120 is not reading the M-Bus meters itself. The LED labeled ACTIVE shows the activity status of the internal interface switch. While this LED is lighted, the CPU is active on the M-Bus, i.e. the other interfaces are deactivated during this time and cannot access the M-Bus.
WebLog120 3.4 Repeater Interface The WebLog120 can be used as a so-called repeater for network expansion for existing M-Bus systems if the maximum number of meters or the maximum cable length for the installation has been exceeded. Up to 120 end devices and up to 4 km of cable (JYSTY 1 x 2 x 0.8) can be connected to the device at a transmission speed of 2400 baud. The repeater input also enables a second M-Bus master to access the meters connected to the WebLog120.
WebLog120 4. Operating Manual The operation and setup of the device via the Ethernet interface. For the initial setup, please establish a 1:1 connection between your PC and LAN 1 of the WebLog120 using a network cable. For easy configuration, the WebLog120 offers a so-called link-local IP address, under which you can always reach the device in the local network or directly in a 1:1 connection. Start your browser on your PC and enter this IP address in the address bar of the browser: https://weblog120-SN.
WebLog120 5. Technical Data 5.1 General Data Operating voltage 110 .. 250VAC, 47 .. 63 Hz Power consumption max. 60W Operating temperature range 0 .. 45°C M-Bus voltage (no load) 36 V (Mark), 24V (Space) M-Bus basic current max. 180 mA Overcurrent threshold > 250 mA Internal bus resistance 8 Ohm Communication speeds 300 .. 38400 Baud Maximum cable length for rec- Total (all wires): 1km (9600 baud), 4km (2400 baud), 10km (300 baud) ommended cable type Max.
WebLog120 5.2 Interface Data RS232C RS485 Repeater USB Ethernet Driver load Current max. 5mA, resistive: min. 3kΩ, capacity: max. 2,5 nF Voltage transmit (at 3kΩ) Mark: +5V ≤ UT ≤ +15V Space: -15V ≤ UT ≤ -5V Voltage receive Mark: +2,5V ≤ UR ≤ +15V Space: -15V ≤ UR ≤ -2,5V Driver load Current max. 250 mA, resistance min. 54Ω Signal voltage TX Space (0): +1.5V Ut +5.0V Mark (1): -5.0V Ut -1.5V Addressing Not possible (transparent) Max.
WebLog120 Notes WebLog120 · Hardware User Manual Version 1.
