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WebLog120 · Hardware User Manual   Version 1.0 - 12/2022 

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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-
ommended cable type 
JYSTY 1 x 2 x 0,8 mm 

Total (all wires): 1km (9600 baud), 4km (2400 baud), 10km (300 baud) 
Max. distance to slave (120 slaves at the end of the cable):800 m 
Max. distance to slave (120 slaves equally distributed): 1600 m 

Galvanic isolation 

All interface are isolated from M-Bus and power supply. The Repeater input is addi-
tionally isolated from the other interfaces. 

Housing 

Light-grey and black PC plastic, protective class IP30 
H x B x T: 140 x 90 x 60 mm (height without terminals) 
Mounting on a rail (8 HP) 

LED indicators 

power, communication Master, slave, warning current, overcurrent M-Bus, 
M-Bus Activity, Error 

Interfaces 

 2 x 10/100 Mbit Ethernet, 2 x USB-Host, RS232C, RS485, Repeater, Micro-SD 
Optional: W-LAN, RS485 

Terminals (all pluggable) 

3 pair of terminals M-Bus, 3-pin terminal for RS232C, 3-pin terminals für RS485, 
2-pin terminal for Repeater, 3-pin terminal for power supply / protective ground 

Summary of Contents for WebLog120

Page 1: ...Hardware User Manual WebLog120 M Bus Datalogger Webserver for 120 Meters Bedienungsanleitung...

Page 2: ...3 Connectors 4 2 4 LED Indicators 5 3 Description of functions 6 3 1 Interfaces 7 3 2 RS232C Interface 7 3 3 RS485 Interface optional 7 3 4 Repeater Interface 8 3 5 USB Interfaces 8 3 6 Ethernet Inte...

Page 3: ...matic time controlled export of meter readings per tenant group Firmware update via web browser 2 Installation 2 1 Illustration of principle 2 2 Mounting The WebLog120 housing is installed on a TS35 t...

Page 4: ...rrectly positioned terminals can lead to defects Upper terminals from left to right Type Signal Description USB OTG Micro USB socket lowest level M BUS M Bus output lines to the M Bus meters 3 pairs i...

Page 5: ...stor of the RS485 on and off RS485 B A GND RS485 interface 2 wire B A GND ground reference 2 4 LED Indicators A total of 7 LEDs in the front cover indicate the status of the M Bus and the system A lig...

Page 6: ...pose an automatic meter search is started and if necessary individual texts and log intervals are assigned to each meter or meter group The logged data is permanently stored in an SQLite database in t...

Page 7: ...Bus GND signal ground If you want to connect a D SUB cable please use the additional optional cable KA006 with 3 open wires To connect to a PC 1 1 connection connect the 3 wires as follows D SUB Sign...

Page 8: ...ed signal for connecting an M Bus net work is then available at the M Bus output of the WebLog120 This M Bus network can then be read out by the WebLog120 and the other master one after the other but...

Page 9: ...r PC and enter this IP address in the address bar of the browser https weblog120 SN local SN 5 digit serial number of the device Here an example for the device with the serial number 00015 https weblo...

Page 10: ...he cable 800 m Max distance to slave 120 slaves equally distributed 1600 m Galvanic isolation All interface are isolated from M Bus and power supply The Repeater input is addi tionally isolated from t...

Page 11: ...N Basic current 1 5 mA 1 Unit Load TX current typ 15mA Capacity Max 250 pF Galvanic isolation 2 5 kV to all interfaces M Bus and power supply USB Type USB 2 0 device socket type B USB IC FTDI Chip FT2...

Page 12: ...WebLog120 Hardware User Manual Version 1 0 12 2022 12 WebLog120 Notes...

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