Each T-Node FR has a factory-assigned Modbus address of 1. When the nodes are assembled in a string, each successive node must have an address 1 greater than the previous node. For example, if the first node in a string of five nodes is addressed 10, the successive nodes must be addressed 11, 12, 13 […]
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Difference Between Active FTP and Passive FTP
The Basics FTP is a TCP based service exclusively. There is no UDP component to FTP. FTP is an unusual service in that it utilizes two ports, a ‘data’ port and a ‘command’ port (also known as the control port). Traditionally these are port 21 for the command port and port 20 for the […]
CB-25-SVS Resource Library
Datasheet Quick Start Guide How To FAQ Warranty Service Request
Data API Key
The ADMIN menu allows project administrators to create new API keys and edit existing keys. WQData LIVE permits generation of up to 10 API keys for each Project. Create a New Key Navigate to ADMIN | API on the WQData LIVE Project Dashboard. Expand the API Keys section by clicking on the gray bar […]
Password requirements for a WQDataLIVE login
For enhanced security, NexSens requires all passwords for a WQDataLIVE login to contain the following features: At least 12 characters Contain at least 1 lower case letter Contain at least 1 upper case letter Contain at least 1 digit Contain at least 1 special character (!, @ #, $, %, ^, *, \, -, _, […]
Apply Power to the X2-SDL
The X2-SDL has flexible power input choices that provide several options in terms of type and number of power sources. Basic Requirements 5-24 VDC [+/-10%] (Reverse polarity protected) Current Draw (Typical @ 12VDC): Low power sleep: 350uA; Logger Active: 35mA; Wi-Fi Transmitting: 43mA; Cellular Transmitting: 300mA Peak Current: 500mA @ 12V for 1 […]
Connect 4-20mA Sensor to mV-485 Adapter
Wiring the sensor. A 56 Ohm resistor is required to convert mA to mV. Configure the mV-485 Adapter. Connect using iChart (see Connecting to a mV-485 Adapter). Set 4-20mA scaling. In the Edit Sensor field of the Configuration menu, select Generic from the drop down list. Use 224 mV and 1120 mV for scaling: […]
Connecting to a mV-485 Adapter
NexSens mV-485 adapters can be used to connect sensors with voltage outputs (e.g. 0-5 VDC) to the iSIC, SDL 500 or X2 data loggers when an analog port is not available. The adapter reads the mV output from the sensor and converts it to RS-485 Modbus format. Each adapter must be configured for the specific […]
NexSens mV-RS485 Adapter – How To
Connect to a mV-RS485 Adapter Change the Modbus Address of a mV-RS485 adapter Configure the mV-RS485 adapter for Li-COR sensors Read the mV value from a mV-RS485 adapter Connect 4-20mA Sensor to a mV-RS485 Adapter Set Gain on a mV-RS485 Adapter Set a Zero Offset on a mV-RS485 Adapter Read/Write mV-RS485 Adapter Modbus Registers