Siemens SIRIUS 3RW5 Equipment Manual page 3

Table of contents
1 Siemens Industry Online Support ............................................................................................................ 7
1.1 Support Request ....................................................................................................................... 9
1.2 Additional documentation ....................................................................................................... 10
2 Safety information ................................................................................................................................. 13
2.1 Security information ................................................................................................................ 13
2.2 ESD Guidelines ....................................................................................................................... 14
2.3 Data security in automation .................................................................................................... 16
2.4 Recycling and disposal ........................................................................................................... 18
3 Description ............................................................................................................................................ 19
3.1 History ..................................................................................................................................... 21
3.2 Hardware configuration ........................................................................................................... 22
3.3 Functions of the 3RW5 Modbus communication module ....................................................... 24
3.3.1 Modbus TCP ........................................................................................................................... 24
3.3.2 Modbus RTU ........................................................................................................................... 25
3.3.3 Assignment of data to Modbus addresses.............................................................................. 26
3.4 Connection monitoring ............................................................................................................ 27
3.5 Telegram structure .................................................................................................................. 28
3.5.1 Telegram structure Modbus TCP ............................................................................................ 28
3.5.2 Modbus RTU telegram format ................................................................................................ 29
3.6 Access options for the 3RW5 soft starter ............................................................................... 30
3.7 Operating modes and master control function ........................................................................ 32
3.7.1 Operating modes .................................................................................................................... 32
3.7.2 Sets the operating mode ......................................................................................................... 35
3.7.3 Control via digital input............................................................................................................ 39
3.8 Bus connection cable and bus connector ............................................................................... 41
3.8.1 Bus connection cable and bus connector for Modbus TCP ................................................... 41
3.8.2 Bus connection cable for Modbus RTU .................................................................................. 41
3.9 Accessories ............................................................................................................................. 42
3.9.1 SIRIUS Soft Starter ES (TIA Portal) ....................................................................................... 42
3.9.2 Use on the 3RW50 soft starter ............................................................................................... 44
4 Mounting and dismantling ..................................................................................................................... 45
4.1 Installing the 3RW5 communication module in the 3RW5 soft starter ................................... 45
4.1.1 Break out the cover of the slot ................................................................................................ 46
4.1.2 Mount the 3RW5 communication module in the slot of the 3RW5 Soft Starter ...................... 48
4.2 Removing the 3RW5 communication module from the 3RW5 soft starter ............................. 49
4.3 Installing the 3RW5 communication module on a level surface ............................................. 51
4.4 Removing the 3RW5 communication module from a level surface ........................................ 53
SIRIUS 3RW5 Modbus communication module
Equipment Manual, 03/2020, A5E43676481002A/RS-AC/003
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