Siemens SIMATIC S7-300 Series Reference Manual page 16

Contents
Tables
1-1 The Differences in Control and Display Elements Between CPUs
1-2 Using a Backup Battery or Accumulator
1-3 Memory Cards
1-4 CPU Interfaces
1-5 Characteristics of the Clock of the CPUs
1-6 CPU Communication Options
1-7 Connection Resources for CPUs 312 IFM to 316-2 DP
1-8 Communication Resources for CPU 318-2
1-9 Diagnostic LEDs of the CPU
1-10 Start Information for OB 40 for the Interrupt Inputs
of the Integrated I/Os
1-11 Start Information for OB 40 for the Interrupt Inputs
of the Integrated I/Os
1-12 Characteristic Features of the Integrated Inputs and Outputs
of the CPU 314 IFM
2-1 Meaning of the BUSF LED of the CPU 31x-2 as DP Master
2-2 Reading Diagnostic Data with STEP 7
2-3 Event Detection of the CPU 31x-2 as DP Master
2-4 Evaluating RUN-STOP Transitions of the DP Slaves in the DP Master
2-5 Example of an address area configuration for transfer memory
2-6 Meaning of the BUSF LEDs in the CPU 31x-2 as DP Slave
2-7 Fetching diagnostic data with STEP 5 and STEP 7
in the master system
2-8 Event Detection of the CPU 31x-2 as DP Slave
2-9 Evaluating RUN-STOP Transitions in the DP Master/DP Slave
2-10 Structure of Station Status 1 (Byte 0)
2-11 Structure of Station Status 2 (Byte 1)
2-12 Structure of Station Status 3 (Byte 2)
2-13 Structure of the Master PROFIBUS Address (Byte 3)
2-14 Structure of the Manufacturer Identification (Bytes 4 and 5)
2-15 Event Detection by CPU 31x-2 Acting as Receiver in
Direct Communication
2-16 Evaluation of the Station Failure of the Sender During
Direct Communication
3-1 Operating System Processing Times of the CPUs
3-2 Process image update of the CPUs
3-3 CPU-specific Factors for the User Program Processing Time
3-4 Updating the S7 Timers
3-5 Update Time and SFB Runtimes
3-6 Extending the Cycle by Nesting Interrupts
3-7 Response time of the CPUs to process interrupts
3-8 Diagnostic Interrupt Response Times of the CPUs
3-9 Reproducibility of the Delay and Watchdog Interrupts of the CPUs
xiv
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PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
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