JUMO variTRON 300
Central processing unit for automation system with optional wireless interface
JUMO variTRON 300 is a compact automation system. The central processing unit can also be used as a receiver for the wireless JUMO Wtrans sensors. A router module can be used to connect JUMO's proven input and output modules and to set up an overall system with integrated PLC (CODESYS V3.5).
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Support of
numerous fieldbus systems |
Connection of
modern web panels |
CODESYS V3.5
programming environment |
GENERAL TECHNICAL DATA |
Interfaces | 1 USB host, 2 Ethernet, 1 RS485 Modbus RTU |
Operation | Keys and LCD display, monochrome, 96 × 64 pixels (8 lines) |
Option | PLC according to IEC 61131-3 (CODESYS V3.5); OPC UA server (in connection with PLC); EtherCAT master (in connection with PLC); applications with the programming environment Node-RED |
Hardware | 800 MHz single-core processor |
Modules | A large selection of connection modules with high-quality, configurable analog inputs and reliable, independent PID controllers with autotuning function |
Displays | Displays in various formats (portrait or landscape format, 4:3 or 16:9) can be connected; CODESYS Remote TargetVisu or CODESYS WebVisu |
Connection possibilities | Connection modules via router module; JUMO digiLine sensors for liquid analysis; thyristor power controller (via EtherCAT); wireless signals from JUMO Wtrans sensors via integrated receiver (optional) |
Control loops | Up to 32 |
Recording function | Up to 60 recording channels, up to 10 batches, up to 10 measuring groups, internal memory for 1 million measured values with manipulation detection |
Special features | Flexible operating philosophy; many degrees of freedom in software and hardware; simple adaptation of hardware inputs and outputs; simple integration of new software functions via CODESYS PLC; integrated JUMO Web Cockpit; simultaneous operation of several control loops with autotuning function; integration of customer-specific parameters (CPV editor) |

Central processing unit
The central processing unit contains the process map of the application and manages the configuration and parameter data of the overall system. 9 program generators and extensive limit value monitoring functions are available for individual control tasks.
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Process mapping
for 30 input and output modules |
Software for
fast startup |
Access to
process values via web server |

Central processing unit for an automation system
JUMO variTRON 500 is based on the modular platform JUMO JUPITER. The central processing unit along with the tried-and-tested input and output modules (incl. controller module) of the measuring, control, and automation system JUMO mTRON T form an overall system and provide a PLC (CODESYS V3.5).
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Integration of
software functions (PLC) |
High degree
of scalability |
Process mapping
of all connected modules |

Touch panel with integrated central processing unit for the automation system
JUMO variTRON 500 touch is based on the JUMO JUPITER modular platform. The central processing unit, in combination with the proven input and output modules from JUMO, forms an overall system with integrated PLC (CODESYS V3.5) and enables visualization via touch panel.
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Support of many fieldbus systems
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Process and plant visualizations
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CODESYS V3.5 and Node-RED as IDEs
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