Zelio Logic

10 to 40 I/O

Smart relays 10 to 40 I/O


Compact range: 3 monobloc models with 10, 12 or 20 I/O and versions available with or without display and buttons. 
Modular range: 2 bases with 10 or 26 I/O that can be extended using:

  • Modbus or Ethernet communication extension modules
  • 6, 10 or 14 discrete I/O and 4 analog I/O extension modules.

Extreme compactness: up to 26 I/O within 124.6 x 90 x 59 mm. 
Supply voltage of bases: 12 V DC, 24 V DC, 24 V AC, 100... 240 V AC. 
Large back-lit LCD display: 4 lines of 18 characters and 1 line of icons, contextual navigation using 6 buttons.
Serial or USB connecting cables for smart relay/PC connection. 
Connection interface (smart relay/PC) for Bluetooth wireless connection. 
Zelio Soft 2 intuitive programming software: programming using:

  • function block diagram (FBD): 32 pre-programmed functions, 7 Grafcet functions, 6 logic functions
  • contact language (LADDER): 12 pre-programmed functions.

Safe programming: coherence test, simulation and monitoring modes, supervision window, etc. 
Remote monitoring and control of installations using Modem Communication Interface (Analog or GSM).



Step into an intuitive world!


Simple to select, install and program, Zelio Logic is suitable for all your applications.
Flexible, it offers you the choice of 2 ranges - Compact or Modular, extendable - and 2 programming languages (FBD or LADDER).
Open, it also enables the control and monitoring of your installations in any situation, either on site or remotely, etc.


  • Industry: control systems for small machines, decentralised control systems on equipment annexed to large and medium-sized machines
  • Building/Service sector: lighting management, access control, control and monitoring, heating and air conditioning control

Additional Links

Product Model and Description:

SR2B121BD 24VDC, 8Digital input, 4 Relay out, clock, 4 (0-10V) analog input & Keypad
SR2B201BD 24VDC, 12 Digital input, 8Relay out, clock, 6 (0-10V) analog input & Keypad
SR2E121FU 100 ~ 240 VAC, 8Digital input,4 Relay out, clock
SR2D201FU 100 ~ 240 VAC, 12 Digital input,8 Relay out, No clock
SR3B101FU  6 Digital I/P,4 Relay out, clock, No analog I/P
SR3B261FU 16 Digital I/P ,10 Relay out, clock, No analog I/P
SR3B101BD 6 digital  I/P , 4 relay out, clock
SR3B261BD 16Digital  I/P , 10 Relay out, clock
SR2USB01 USB Cable to Connect SR and PC
SR3XT141FU Ethernet Extension For 24VDC smart Relay
SR3XT43BD Option, Operator Display HMI Module
SR3XT61FU 6 I/O REl. Extension For 100~240V
SR3XT101FU 10 I/O REL. Extension For 100~240V
SR3XT141FU 14 I/O REl. Extension for 100~240V
SR3XT43BD 4 Analog I/O for 24VD SR

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