IFM PI2799 - Operating Modes; Switching Output Functionality

6
- Using the FDT service program ifm Container, the current parameter settings
can be stored and transferred to other units of the same type�
The program library of the available DTM objects can be found at www�ifm�com
→Service→Download.
Device-specific parameter lists for IO-Link parameter setting are available at:
www�ifm�com
4.1 Operating modes
Theoperatingmodeisdefinedbythewiring(→6Electricalconnection)and
automatically recognised�
4.1.1 2-wire operation
OUT2 (pin 2) analogue signal proportional to pressure 4…20 mA or 20���4 mA
4.1.2 3-wire operation
OUT1 (pin 4)
•switching signal for system pressure limit value
•communication via IO-Link
OUT2 (pin 2)
3 options:
•switching signal for system pressure limit value
•analogue signal proportional to pressure 4���20 mA
•analogue signal proportional to pressure 20���4 mA
4.2 Switching function (only for 3-wire operation)
OUTx changes its switching state if it is above or below the set switching limits
(SPx, rPx)� The following switching functions can be selected:
• Hysteresisfunction/normallyopen:[OUx]=[Hno](→fig.1).
• Hysteresisfunction/normallyclosed:[OUx]=[Hnc](→fig.1).
First the set point (SPx) is set, then the reset point (rPx) with the requested
difference�
• Windowfunction/normallyopen:[OUx]=[Fno](→fig.2).
• Windowfunction/normallyclosed:[OUx]=[Fnc](→fig.2).
The width of the window can be set by means of the difference between SPx
and rPx� SPx = upper value, rPx = lower value�