7 Connecting .................................................................................................................................................55
7.1 Hardware-settings ..................................................................................................................55
7.2 Wiring rules ............................................................................................................................55
7.3 Connecting the power supply to the CFU ..............................................................................56
7.4 Connecting the device to the CFU (PROFIBUS PA field device, sensor, actuator)...............59
7.4.1 CFU PA: Connecting a PROFIBUS PA field device...............................................................59
7.4.2 Connecting a sensor / actuator to the CFU............................................................................60
7.5 Connect cables for sensors, actuators and power supply to the connector...........................62
7.5.1 Selecting connection system..................................................................................................62
7.5.2 Preparing cables ....................................................................................................................63
7.5.3 Connecting the cable using push-in terminals .......................................................................63
7.5.4 Connecting cables using screw terminals ..............................................................................64
7.6 CFU PA: Connecting the cable shields of the PROFIBUS PA cables ...................................64
7.7 Connecting the functional earth to the CFU ...........................................................................65
7.8 Communication via PROFINET .............................................................................................66
7.8.1 Connecting the CFU to the PROFINET IO.............................................................................66
8 Commissioning ...........................................................................................................................................67
8.1 Switching on the CFU ............................................................................................................67
8.2 CFU PA: Startup of field devices depending on the configuration .........................................68
8.3 Configuration of the DIQ channels: Startup depending on the configuration .........................69
8.4 Commissioning (overview of procedure)................................................................................71
8.5 CFU: Configuring with PDM ...................................................................................................72
8.5.1 Using a wizard for CFU configuration ....................................................................................72
8.5.2 "Commissioning Wizard: Complete" dialog............................................................................74
8.5.3 CFU PA: "Commissioning Wizard: Only add/remove/replace field devices"..........................75
8.5.4 "Maintenance Overview" dialog .............................................................................................76
8.5.5 "Commissioning History" dialog .............................................................................................76
8.5.6 "Diagnostics Buffer" dialog.....................................................................................................76
8.5.7 "Expert Functions" dialog .......................................................................................................76
8.5.8 "Help on 'CFU ... Configuration' wizard" dialog ......................................................................76
8.6 Preparing the CFU for commissioning ...................................................................................76
8.6.1 Rules for device names..........................................................................................................76
8.6.2 Assigning device names with existing configuration from HW Config....................................78
8.6.3 Configuring the topology ........................................................................................................79
8.6.4 Assigning the CFU parameters without configuration ............................................................80
8.7 Requirement for startup of CFU .............................................................................................83
8.8 Commissioning (offline)..........................................................................................................83
8.8.1 Configuring.............................................................................................................................83
8.8.1.1 Overview of configuring and assigning parameters ..............................................................83
8.8.2 Configuration..........................................................................................................................84
8.8.2.1 Introduction to configuring......................................................................................................84
8.8.2.2 Configuring the CFU ..............................................................................................................84
8.8.2.3 Configuring a freely configurable channel (DIQ) ....................................................................85
Table of contents
SIMATIC CFU
4 Commissioning Manual, 08/2019, A5E39252870-AD