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NetControl 4RU1SH2S


This model is specially designed to apply in systems with accumulator as power source. This device has 4 relay (NC) outputs to turn-off different loads to the resereved power supply. There is input for external shunt resistor (60/75mV) to get measurement of current in power circuit. Additionally the accumulator voltage (up to 48VDC) is also measured from device. Two connectors for external sensors (temperature, hummidity, etc) are also available.

With this device user can achieve full control and status of system based on power from accumulators. With the "Automation" block inside the device or the power of the cloud platform you can define complex scenarios of load management, protection of deep discharge of accumulator, charge/discharge current and voltage monitoring etc.


Input-output channels in NetControl 4RU1SH2S:

  • 4 relay outputs (normal close relay contact) with common supply

  • measurement of power supply voltage (uo to 48VDC)

  • Input for external shunt resistor to measure system's current
  • 2 inputs for external sensors for: temperature (via TDS300), humidity (HDS300), water (WDS300)


Basic network function (for more see user manual)

  • 10 BASE-T Ethernet (NO CrossOver Autodetect);

  • Supported protocols ARP/DHCP/ICMP/TCP/IP/SNMP/TFTP client/WEB server

  • 802.1q VLAN support

  • SNMPv1 (ONLY snmpget/snmpset) protocol for access to all parameters and functions;

  • SNMP traps generation on input change;

  • Output signal generation on analog input change;

  • WEB access to all parameters and functions;

  • TFTP client for firmware update



  • control and monitoring of systems with power supply from accumulator

  • "smart" control of loads according to accumulator charge and channel priority

VERY IMPORTANT!!! * After setting up the correct shunt parameters in device's internal Web interface DO NOT FORGET to copy the supplied 'Cloud Scale Coefficient' in the cloud platform (double click to edit the device for current measurment)! If you miss this step values in the cloud platform will be wrong!
* For devices with firmware version 3.14 or older you have to enter in cloud the coefficent with minus sign appended!!!

User manual and most recent firmware for NetControl

um iconUser Manual, SNMP MIB

NetControl Series_UM-2.21_en.pdf (07.2020) (Only for firmware 5.12+)

NetControl SNMP MIB v1.5 (11.2019)

firmwareLatest firmware image (also publicly available by TFTP at IP address
IMPORTANT! Before updating, please read FirmwareRevisionHistory.txt file from archive
for information on how the new version will affect your current settings!

Firmware v5.31.zip (01.2021)


Archives for old hardware version (3.xx)

NetControl Series_UM-2.13_en.pdf
Firmware v3.17.zip (11.2017)


Application notes and example codes for integration of NetControl to different software systems.

php-logoControl and access NetControl with PHP (with SNMP and HTTP requests) new-icon

netcontrol-php.zip (10.2019)


logo domoticzNode-RED flow for integrating NetControl and Domoticz (MQTT) 

NetControl<->Domoticz Node-RED Flow (v2.1 updated 05.2020)


zabbix availableHost template for integration in Zabbix (SNMP)

NetControl HostTemplate for Zabbix (02.2018)


cactiHost template for integration in Cacti (SNMP)

NetControl HostTemplate for Cacti (02.2018)

logo pythonStoring alarm events to MySQL with Python code (MQTT) new-icon

netcontrol_mqtt2mysql.zip (02.2020)