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S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
A5E00203919-01
vii
10-2 Removing the front connector coding pin ....................................................10-6
10-3 Installing a new module................................................................................10-7
10-4 Inserting the front connector ........................................................................10-8
10-5 Replacing the back-up battery in CPU 313/314...........................................10-9
10-6 Location of fuses in the digital output module 120/230 VAC .....................10-12
11-1 Principle of Forcing with S7-300 CPUs (all CPUs except 318-2 DP) ..........11-3
11-2 Diagnostics with CPU 31x-2 ......................................................................11-12
11-3 Diagnostic addresses for DP masters and DP slaves ...............................11-13
11-4 Diagnostic address for the receiving node with direct data exchange.......11-15
11-5 Diagnostic addresses for DP masters and DP slaves ...............................11-18
11-6 Structure of slave diagnostic data..............................................................11-22
11-7 Structure of the ID-specific diagnostics for CPU 31x-2..............................11-25
11-8 Structure of the module status...................................................................11-26
11-9 Structure of the interrupt status..................................................................11-27
11-10 Bytes y+4 to y+7 for a diagnostic interrupt (operating status
change by intelligent slave)......................................................................11-28
12-1 Possible paths of electromagnetic interference ...........................................12-3
12-2 Example of an EMC compatible cabinet installation....................................12-8
12-3 Example of EMC compatible wall-mounting ..............................................12-10
12-4 Mounting cable shielding............................................................................12-12
12-5 Equipotential bonding.................................................................................12-13
12-6 Lightning protection zones of a building.....................................................12-18
12-7 Sample circuit for networked S7-300 PLCs ...............................................12-24
12-8 EMERGENCY-OFF relay contact in the output circuit...............................12-26
12-9 Circuit for coils operated with DC voltage..................................................12-27
12-10 Circuit for coils operated with AC voltage ................................................12-27
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