Compact Terminal SCTSi Ethernet

Flexible, Fully Networked Vacuum Generation

Variety, optimization of production processes, and continuous energy and process control are the challenges of the future. In order to meet these demands, powerful, flexible and energy-efficient vacuum systems are required. The answer is our Compact Terminal SCTSi Ethernet, a compact unit of several vacuum generators for simultaneously and independently handling different parts with a single vacuum system.

The compact terminal SCTSi is sort of the masterpiece of our engineers, a compact and powerful unit for vacuum generation in automated systems. Now Schmalz has enhanced the Ethernet version of the terminal by adding new modules. Via an IO-Link master that can be integrated into the terminal, field devices can be connected via IO-Link and thus communicate directly with the PLC. Digital field devices such as sensors are integrated via digital input modules – without separate I/O modules. The terminal thus becomes the central control unit for vacuum gripping systems.


  • Central compressed air and power supply for up to 16 ejectors
  • Direct connection to the controller via only one data line
  • Space saving (no additional IO-Link master or I/O modules)


  • Can be integrated in a wide range of field-bus systems
  • Only one station in the network, even if devices are connected to the SCTSi


  • Simple construction of different, individually controllable vacuum circuits
  • Single and multi-stage vacuum generation
  • Ejectors are individually selectable according to nozzle size, NO / NC / impulse or nozzle type


  • All vacuum circuits can be separately controlled
  • Process transparency, energy consumption control and a variety of diagnostic functions for use in intelligent factories


IO-Link master

  • Connection of intelligent field devices (sensors and actuators)
  • Direct connection to the controller via only one data line

Digital input modules

  • Connection of digital field devices (sensors)
  • Up to 4 expansion modules with 4 ports each (M12-5 socket)

Impulse valves (IMP)

  • Ejector discs with bistable suction valve increase process reliability
  • If the actuator voltage fails, the ejector remains in the last active state
  • Valve requires only a short voltage pulse for switching

ETL certified

The SCTSi Ethernet is Schmalz's first product to receive an ETL certification (short for Electrical Testing Laboratories) from Intertek. This certification confirms compliance with industry standards that guarantee certain minimum safety requirements.

The ETL certification of the SCTSi Ethernet includes both the USA and Canada. ETL certification is equivalent to UL or CSA certification.

Configuration Code – Selection and Ordering Aid

The Compact Terminal SCTSi Ethernet was developed to connect multiple ejectors. Use the following code to configure a Compact Terminal SCTSi Ethernet to match your application.

You can find additional information about the individual components and selection options on the various tab pages.

Main body SCTSi Ethernet

Code Type
SCTSi-PNT Main body SCTSi
Ethernet interface
Communication: ProfiNet
SCTSi-ECT Main body SCTSi
Ethernet interface
Communication: EtherCAT
SCTSi-EIP Main body SCTSi
Ethernet interface
Communication: Ethernet/IP

Number of ejectors

Code Type
0-16 Number of ejectors


A maximum of 16 ejectors can be integrated in one terminal.
A version without ejectors for use as a central control unit is also possible.

Terminal variant


Code Type
AA Standard version, push-in vacuum connection, hose diameter = 6 mm (for nozzle size = 0.7 mm) or hose diameter = 8 mm (for nozzle size = 1.0 mm or 1.5 mm)
AB Standard version, threaded connection, G1/8"-F (for all nozzle sizes)
NE Standard version, without ejectors

Ejectors (example)

Code Type Option of terminal Suction rate l/min Part no.
C8B SCPst 07 GS01 NC C8B AA 16
C79 SCPSt 07 GS01 NO C79 AA 16
C8N SCPSt 10 GS01 NC C8N AA 36
C8A SCPSt 10 GS01 NO C8A AA 36
C7U SCPSt 15 GS02 NC C7U AA 65,5
C78 SCPSt 15 GS02 NO C78 AA 65,5
C7E SCPSt 07 G02 NC C7E AB 16
C7H SCPSt 07 G02 NO C7H AB 16
C7D SCPSt 10 G02 NC C7D AB 36
C7B SCPSt 10 G02 NO C7B AB 36
C7N SCPSt 15 G02 NC C7N AB 65,5
C7A SCPSt 15 G02 NO C7A AB 65,5


You can choose between different nozzle technologies and sizes, Connections or rest positions of the suction valve (NO/NC/IMP).
A maximum of 4 different ejector blocks are possible.
From 9 ejectors upwards, a larger hose diameter is required for compressed air supply.

Expansion modules

Code Type
2 Number of IO-Link masters
4 Number of DI modules


A maximum of 6 modules can be integrated in one terminal. 0 to 2 IO-Link masters and 0 to 6 DI modules, depending on the combination.

Simplified Integration in the Control Level

  • Lean, central compressed air supply (1)
  • NFC chip (2) for reading and writing process information
  • Central power supply and Ethernet connection M12, 5-pin via the control module (3)
  • Threaded vacuum connections (5)
  • Compact vacuum terminal with max. 16 block-mounted compact ejectors (4)

Technical Data Compact Terminal SCTSi Ethernet (Electronics)

Type Operating temperature 
Pressure range
(operating pressure) [bar]
Electrical connection Communication
SCTSi Ethernet 0...50 2...6 M12, 5-pin plug Ethernet

Technical Data Compact Ejectors SCPSt

Type Nozzle Size
Degree of evacuation
Max. suction rate
Max. suction rate
Vacuum air consumption 
Air consumption for blow off
Sound level  free*
Sound level during gripping* 
SCPSt 07... 07 85 0.98 16.0 1.35 7.25 63 58
SCPSt 10... 10 85 2.21 36.0 2.85 7.25 73 60
SCPSt 15... 15 85 4.03 65.5 6.03 7.25 73 65
SCPSt 2-07... 2-07 85 2.28 37.0 1.35 7.25 63 58
SCPSt 2-09... 2-09 85 3.05 49.5 2.49 7.25 73 60
SCPSt 2-14... 2-14 85 4.40 71.5 5.04 7.25 75 65

*At optimal operating pressure (4 bar)
**No linear increase in sound level with increase in ejector disks

Highlights of the Compact Terminal SCTSi Ethernet

Ideal for use in the Smart Production of the Future

The Compact Terminal SCTSi Ethernet offers an enormous range of innovative, energy-saving technologies and networking options for use in intelligent factories.

Near-Field Communication (NFC)

  • Reliable communication via an energy-neutral point-to-point connection
  • Visible data – Both statistical data (such as the serial number) and dynamic process data (such as switching points) can be read out
  • Parameterization option – An app can be used to parameterize the SCTSi Ethernet directly from a smartphone

Networking in Industry 4.0 Systems

  • The Ethernet connection means that recorded data can be viewed and used all the way up to the control level, which allows for bidirectional parameterization and diagnostics in all conventional field-bus systems
  • Condition monitoring increases system availability by providing detailed analyses of the system’s condition and early detection of faults

  • Predictive maintenance improves the performance of gripping systems

  • Energy monitoring optimizes the vacuum system's energy consumption

Automatic Air Saving Function

  • Switches off the suction function once a safe vacuum value has been reached until the next cycle or until the vacuum falls below the safe vacuum value
  • Various configuration values and air saving settings can be programmed separately for each ejector
  • Reduction of compressed air consumption by up to 80 %

Integrated Electronic Sub-Bus System

  • Electronic control can be implemented with just a single cable
  • Comprehensive data communication via Ethernet and near-field communication (NFC)
  • All ejectors can be separately programmed and controlled

Eco-Nozzle Technology

  • Eco-nozzle technology provides a considerably higher suction rate with minimized compressed air consumption for energy-efficient vacuum generation