Description Inputs and output: Each device type has a universal analog input(for RTD temperature probe, thermocouple, current, voltage, resistance transmitter, resistance/potentiometer), a digital input and a switchable digital input/output. With the exception of type 702110, where the basic type has one relay output(N/O contact), all remaining types are equipped with two relay outputs(N/O contacts). The digital inputs are provided to connect a potential-free contact. The digital output provides a logic signal 0/14 V. Additional relay outputs(N/O contacts), the logic outputs(0/14V), PhotoMOS® relay out puts1 and an analog output (0(2) to 10 V /0(4) to 20 mA) are available as options.Certain inputs and outputs cannot be used si multaneously (see notes in the connection di agram). Signal allocation via selectors: The input signals of the analog input and the digital inputs are available for further use in the device in so-called selectors (analog selector, digital selector). The trigger signals for the an alog output and the digital outputs are also as signed via selectors, which allows for flexiblesignal/function assignment. Interfaces: The device is equipped with a USB device in terface (micro-B socket on the rear of the de vice) that is provided for the connection to a PC and is only used for the setup program.Thereby the device is powered via the USB in terface. As a result, no mains supply is re quired during the configuration. A RS485 interface is also available as an op tion which is provided for communication with a Modbus master (Modbus-RTU operating mode). The master can transmit up to two an alog values and two binary values to the de vice that are used there as external input signals. Two analog flags and two digital flags (binary) are also available. An Ethernet interface is also available as an option, which supports the Modbus-TCP and Modbus-RTU/ASCII via TCP operating modes. This allows the same parameters and process values to be transferred as via the RS485 interface. Voltage supply: The device is available in two voltage supply variants: AC 110 to 240 V or AC/ DC 20 to 30 V, each 48 to 63 Hz. Electrical connection: The electrical connection saves time by using practical spring-cage terminals (Push-In tech nology). Controller types and structures:The device is a one-channel controller that can be configured as a two-state controller, three-state controller, three-step controller, and continuous controller. Depending on the controller type, different controller structures can be prescribed (P, I, PD, PI, PID) using ad justable controller parameters. The controller supports two switchable parameter blocks. The controller setpoint can also be switched. Up to four setpoint values can be entered. The selection of the active setpoint value is con trolled by two binary signals. Autotuning: Autotuning (oscillation method or step re sponse method) also makes it possible for the controller to be matched to the control process by a user who is not a control technology ex pert. The way the control process reacts to changes in the actuating variable is evaluated in the process and certain controller parame ters are calculated. Ramp function: The ramp function is used for a constant change of setpoint value up to the ramp limit value (entered setpoint value). A rising or a falling edge arises depending on the actual value at the time of the ramp start. The slope is defined via two adjustable gradients (up ward, downward). The ramp function is con trolled via binary signals (start, brake, stop). Program controller: The controller can also be operated as a pro gram controller. Using a program editor, the user can create a program for a setpoint value and four operating contacts with up to 24 pro gram sections. This program is processed by the program generator. Details such as pro gram start, program repeat and the type of set point value change (jump or ramp) are specified by the configuration of the program generator. Limit value monitoring: The device is equipped with four limit value monitoring functions, each with eight configu rable alarm functions. Any analog signal from a selector is selected as the value to be moni tored. An absolute value or a value that de pends on an additional analog signal serves as the limit value. Special functions such as switch-on/switch-off delay, pulse function, alarm suppression in the switch-on phase or in case of a parameter change, alarm latch and lock with acknowledgment are available. With the limit value monitoring function, extensive alarm and limit value functions can be imple mented. Digital controller signals: Up to four digital control signals can be config ured using this function. In this process, the control signal is formed either by an AND/OR/ XOR link of up to three selectable binary sig nals. Or a single binary signal serves as an input signal and is output as a pulse-shaped signal, as a delayed signal, as a so-called wiper sig nal, or as an edge-triggered signal. In the latter case the rising or falling edge of the binary sig nal is detected, and the output signal is acti vated for the duration of the sampling interval. The output signal can be inverted in all speci fied cases. Timer: After the timer is started, a signal is output for the duration of the timer running time; this sig nal is invertible. It is also possible to start the timer after the lead time has elapsed or after reaching a tolerance limit. A timer end signal can be output after the timer has elapsed (limit by time or acknowledgement). The timer can be used to implement various, time-dependent functions like time-limited control or setpoint changeover or a time-de layed control. Service counter: The device is equipped with a counter function that can be used as a service counter. To this end, either the switching frequency of a binary signal is counted or its duty cycle is deter mined. When the set limit value is reached, a binary signal is activated that needs to be ac knowledged. In addition, an operating hours counter is available that determines the device's opera tion time. Math and logic function: The optional math and logic function (extra code) can be used to link analog or binary val ues. Up to four freely configurable maths or logic formulae can be created using the setup program. The results are available in the ana log or digital selector for further use. Individual user level: The individually configurable user level con tains up to 16 editable configuration parame ters. The parameters are selected in the setup program. Setup program: The setup program provides the user with an easy and comfortable way to configure the de vice using a PC. You can use it to create and edit data records, transfer them to the device, and extract them from it. The data can be stored and printed. In addition, the user can easily create and print out a connection dia gram that shows the current terminal assign ment of the device. Startup: the startup function is for recording process variables during startup (max. 24 hours). The recorded diagrams are available on the PC and can, for example, be used for system documentation.Online data: The device's current process variables are shown in a separate window. Program editor: In addition to the program ed itor inside the device, the setup program also provides the option to create a setpoint value program. Customer-specific linearization: Sensor signals with special characteristic line characteristics can also be used through cus tomer-specific linearization. Programming is carried out in the setup program on the basis of a value table with up to 40 value pairs or through a formula (4th order polynomial). Structured text: The user has the option to create his/her own application using the "Structured text" option (extra code). The application with the ST editor, which is part of the setup program, is created in the PLC programming language "Structured text". The finished application is transmitted to the device and continuously processed there. There are online-debugger functions available in the ST editor for testing and troubleshoot ing. Up to 10 stored text messages can be dis played via the ST code depending on the application.