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WebLog120 · Hardware User Manual   Version 1.0 - 12/2022 

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WebLog120  

5.2 Interface Data 

 

RS232C 

Driver load 

Current max. 5mA, 

resistive: min. 3kΩ, capacity: max. 2,5 nF

 

 

Voltage transmit (at 3kΩ)

 

Mark: +5V ≤ U

T

 

≤ +15V 

 

Space: -

15V ≤ U

T

 

≤ 

-5V 

 

Voltage receive 

Mark: +2,5V ≤ U

R

 

≤ +15V 

 

Space: -

15V ≤ U

R

 

≤ 

-2,5V  

RS485 

Driver load 

Current max. 250 mA, resistance min. 54Ω

 

 

Signal voltage TX 

Space (0):  +1.5V 

  U

t

  

 +5.0V 

Mark (1):    -5.0V  

  U

t

  

 -1.5V 

 

Addressing 

Not possible (transparent) 

 

Max. cable length 

3,0 m 

Repeater 

Current M-Bus IN 

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: FT232R, Vendor ID = 0403, Product ID = 6001 

 

Power supply 

Bus powered, Low Power (max. 90mA) 

 

Max. cable length 

3,0 m 

Ethernet 

Network interface 

10/100BaseT (RJ45), auto-MDIX, with 2 LEDs 

5.3 Ordering information 

 

Article number 

Description 

WEBLOG120 

Web-based M-Bus Central for 120 meters 

KA003 

Power cable (German connector), length 2m 

KA PATCH.5E RJ45 1M 

Network patch cable CAT5E FTP, Length = 1m, grey 

KA006 

Serial D-SUB-9 female cable with 3 open wires

 

EWLAN 

WiFi adaptor extern 

 

 

 

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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