samsonT 6495-2 ENTROVIS 6495 Industrial Controller

Application

Digital controller to automate industrial and process plants for general and more complex control tasks.

Fig. 1: TROVIS 6495-2 Industrial Controller

The TROVIS 6495-2 Industrial Controller is suitable for control 

of continuous, on/off or pulsing final control elements (pneumatic actuators with i/p positioners, additional electric actuators, electric heating systems, refrigerating machines etc.)

Special features

• Simple menu structure with plain text display

• 4 analog inputs with filter, root extraction, function generation and measuring range monitoring

• 4 digital inputs for set point switchover, constant output 

value, reversal of operating action, output tracking (DDC 

backup), ramps etc

• 3 analog outputs

• 4 relay outputs for two on/off or three-step outputs or four 

limit alarms

• 2 transistor outputs for fault alarms

• 1 transistor output for fault alarms

• Optional RS-232/USB and RS-485/USB interface boards 

for SSP and Modbus RTU

• Degree of protection (front) IP 65

• Plug-on screw terminals

• Fixed set point control, one or two channels, internal/external switchover

• Follow-up control, one or two channels, internal/external 

switchover

• Ratio control

• Cascade control, consisting of master and slave controller

• Limiting or override control

• Mixing control

• Linking of input variables (addition, subtraction, multiplication, division, mean value, minimum and maximum selection) for feedforward control or control with 1 to 4 input 

variables (multi-component control)

• Operation with up to four internal set points and one external set point, either analog or via interface (SPC mode)

• Set point ramp and output ramp

• Split-range operation

• Control mode selection P/PI or PD/PID

• KP and TN adapted using the controlled variable, reference variable, manipulated variable or error signal

• Adjustable limitation of integral-action component

• Operating point preset by set point or digital input

• Control signal limitation (fixed or floating according to an 

input variable)

• Operation with code number or key locking by a digital 

inpu

Design and principle of operation

The TROVIS 6495-2 Industrial Controller has two independently working controllers with shared input and output 

sections.

By setting the functions and parameters, the controller can be 

adapted to a control task quickly. Preset basic configurations 

for each control type minimize setup work for standard applications. The controller can be set up using the keys on the 

housing or with the optional TROVIS-VIEW software without 

requiring any additional accessories.

The controller settings are saved in a non-volatile memory, 

even when the power supply fails. The two internal controllers 

can be operated directly without switching. The plain-text display in English, German and French facilitates configuration 

and parameterization.

Control modes

− Fixed set point control, one or two channels, internal/

external switchover

− Follow-up control, one or two channels, internal/external 

switchover

− Ratio control (mixing control)

− Cascade control, consisting of master and slave controller

− Limiting or override control

Control

− Linking of input variables (addition, subtraction, multiplication, division, mean value, minimum and maximum selection) for feedforward control or control with one to four 

input variables (multi-component control)

− Operation with up to four internal set points and one external set point, either analog or via interface (SPC mode)

− Set point ramp and output ramp

− Split-range operation

− Control mode selection P/PI or PD/PID

− KP and TN adapted using the controlled variable, reference variable, manipulated variable or error signal

− Adjustable limitation of integral-action component

− Operating point preset by set point or digital input

− Control signal limitation (fixed or floating according to an 

input variable)

− Operation with code number or key locking by a digital 

input

Inputs

− 4 analog inputs (AI1 to AI4)

DIP switches at the side of the housing to select current or 

resistance inputs. The signal type is set depending on the 

configuration:

− 0/4 to 20 mA

− 0/2 to 10 V

− Pt 100 or Pt 1000 resistance thermometer 

− Filter, root extraction, function generation and measuring range monitoring

− Input 2 additionally for potentiometers

− 4 digital inputs (DI1 to DI4)

The digital inputs are controlled either by a 24 V DC voltage signal or by the transmitter supply using a floating 

contact. The digital outputs can only be controlled in 

groups, with DI1 and DI2 being the first group and DI3 

and DI4 being the second group.

Example: internal supply for digital inputs DI1 and DI2 

and external supply for digital inputs DI3 and DI4.

− Set point switchover, constant output value, reversal of operating action, output tracking (DDC backup), ramps etc

The following functions that have been defined over the C 

Controller, O Output and A General settings menus 

can be assigned to a digital input (see the 'Start-up and configuration' section):

− Invert digital input