Siemens 3RS2

5.3 Standard function .............................................................................................................. 26
5.4 Special functions ............................................................................................................... 27
5.4.1 Safety function .................................................................................................................. 27
5.4.2 Temperature limiter TB ...................................................................................................... 28
5.4.3 Temperature monitor TW ................................................................................................... 30
5.4.4 Communication ................................................................................................................. 31
5.5 Performance characteristics ............................................................................................... 31
5.6 Connection systems........................................................................................................... 32
5.7 Sensor types ...................................................................................................................... 32
5.8 Measuring ranges .............................................................................................................. 33
5.9 Using sensors .................................................................................................................... 34
5.10 Operator control ................................................................................................................ 34
5.10.1 Operator controls and display elements.............................................................................. 34
5.10.2 Display............................................................................................................................... 36
5.10.3 Menu-based operation....................................................................................................... 37
5.10.4 Reset ................................................................................................................................. 43
5.11 Time diagrams................................................................................................................... 44
5.12 Diagnostics........................................................................................................................ 47
6 Digital devices with IO-Link ................................................................................................................. 49
6.1 Performance characteristics ............................................................................................... 49
6.2 Communication ................................................................................................................. 50
6.3 Connection options for IO‑Link........................................................................................... 50
6.4 Time diagrams................................................................................................................... 52
6.5 Con󹪝guring with STEP 7 ..................................................................................................... 55
6.5.1 Con󹪝guring with STEP 7 - prerequisites............................................................................... 55
6.5.2 Con󹪝guring with STEP 7 and S7-PCT ................................................................................... 56
6.5.3 Con󹪝guring with STEP 7 and S7-PCT /GSD variant) .............................................................. 56
6.6 Con󹪝guring without STEP 7................................................................................................ 57
6.6.1 Con󹪝guring without STEP 7 - prerequisites.......................................................................... 57
6.6.2 Con󹪝guring without STEP 7................................................................................................ 57
6.7 Module replacement.......................................................................................................... 58
6.7.1 Module replacement (replacement of an IO‑Link device)..................................................... 58
6.7.2 Module replacement with PG/PC ........................................................................................ 58
6.7.3 Module replacement without PG/PC ................................................................................... 58
6.8 Integration into the SIMATIC environment .......................................................................... 59
6.9 Acyclic data exchange with the FB IOL_CALL....................................................................... 59
6.10 Diagnostics via IO‑Link ....................................................................................................... 60
7 Sensor expansion module ................................................................................................................... 63
7.1 Versions............................................................................................................................. 63
7.2 Communication ................................................................................................................. 63
Table of contents
3RS2 temperature monitoring relay
4 Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002