Siemens Simatic CFU Commissioning Manual page 5

9 Diagnostics of the CFU...............................................................................................................................91
9.1 Executing diagnostics of the CFU..........................................................................................91
9.2 Diagnostics via LED displays.................................................................................................91
9.3 Diagnostics with the Maintenance Station.............................................................................95
10 Servicing and maintenance........................................................................................................................99
10.1 Identification and maintenance data......................................................................................99
10.2 Maintenance...........................................................................................................................99
10.3 Removing or inserting the BusAdapter................................................................................100
10.4 Replacing the CFU...............................................................................................................100
10.5 Replacing / modifying a sensor / final controlling element...................................................102
10.6 Overload of freely configurable channels (DIQ<n>).............................................................102
10.7 Replacing field devices........................................................................................................103
10.8 Adding field devices.............................................................................................................104
10.9 Re-reading field device data or restarting the field device...................................................105
10.10 Using service interface.........................................................................................................106
10.11 Reading back the parameters..............................................................................................106
10.12 Restoring the state of delivery..............................................................................................107
11 Compact Field Unit in the enclosure for use in a hazardous area ...........................................................109
11.1 CFU in hazardous areas......................................................................................................109
11.2 Grounding for configuration with SIMATIC CFU PA bundle with aluminum enclosure........110
11.3 Configuration with SIMATIC CFU PA bundle with aluminum enclosure .............................112
11.3.1 Introduction..........................................................................................................................112
11.3.1.1 Installation instructions.........................................................................................................113
11.3.1.2 Design types of protection on the CFU ...............................................................................114
11.3.1.3 Explosion protection.............................................................................................................114
11.3.1.4 Electromagnetic compatibility...............................................................................................115
11.3.2 Installation............................................................................................................................115
11.3.2.1 Configuration with CFU........................................................................................................115
11.3.2.2 Installation............................................................................................................................115
11.3.2.3 Installation rules...................................................................................................................116
11.3.2.4 Installing SIMATIC CFU PA bundle with aluminum enclosure on the mounting surface. ....117
11.3.2.5 Installing the CFU.................................................................................................................118
11.3.2.6 Connecting the cables..........................................................................................................119
11.3.2.7 Connecting the field bus to the CFU....................................................................................121
11.3.2.8 Connecting the cable shields of the PROFIBUS PA cables.................................................122
11.3.2.9 Grounding SIMATIC CFU PA bundle with aluminum enclosure..........................................123
11.3.3 Care and maintenance.........................................................................................................123
11.3.3.1 Information on care and maintenance..................................................................................123
11.3.3.2 Permitted activities in hazardous areas...............................................................................124
11.3.3.3 Maintenance during operation..............................................................................................124
11.3.3.4 Cleaning...............................................................................................................................125
11.3.3.5 Replace pressure compensation element............................................................................125
SIMATIC CFU
Commissioning Manual, 07/2018, A5E39252870-AC
Table of contents
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