Siemens SIMATIC S7-400H - Page 18

Contents
xviii
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Tables
4-1 LEDs of the CPUs 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Positions of the mode selector 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Protection levels of a S7-400 CPU 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 Types of memory cards 4-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 CPUs 41x (MPI/DP Interface as Profibus DP) 4-30. . . . . . . . . . . . . . . . . . . . . .
4-6 Meaning of the BUSF LEDs of the CPU 41x as DP master 4-35. . . . . . . . . . . .
4-7 Reading out the diagnostics information with STEP 7 4-36. . . . . . . . . . . . . . . .
4-8 Event detection of the CPUs 41x as DP master 4-39. . . . . . . . . . . . . . . . . . . . .
5-1 Overview of the S7-400H system modes 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Explanations relating to figure 5-2 System and Operating Modes of the
Fault-Tolerant System 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Causes of Error Leading to the Termination of Redundant System Mode 5-8
5-4 Response to errors during the self-test 5-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5 Response to a recurring comparison error 5-12. . . . . . . . . . . . . . . . . . . . . . . . . .
5-6 Response to checksum errors 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Properties of link-up and update 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Premium for the monitoring times of redundant I/O 6-19. . . . . . . . . . . . . . . . . . .
6-3 Typical values for the user program share TP15_AWP of the
max. blocking time for priority classes > 15 6-25. . . . . . . . . . . . . . . . . . . . . . . . .
7-1 Signal modules for redundancy 7-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2 Digital output module connected through/without diodes 7-21. . . . . . . . . . . . . .
7-3 Analog input modules and sensors 7-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4 Assignment of the status byte 7-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-5 Assignment of the status bytes 7-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-6 OB 1 7-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-7 OB 122 7-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1 Modifiable CPU parameters 11-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13-1 Run times of the blocks for redundant I/O 13-11. . . . . . . . . . . . . . . . . . . . . . . . . .
A-1 MTBF factor for redundant I/O A-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-1 Differences between S7-400 and S7-400H B-2. . . . . . . . . . . . . . . . . . . . . . . . .