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Command Interface

5-53

SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

5.2.27 Get_LPF

Purpose

With this call, the list of peripheral faults (LPF) signaled by the AS-i slaves is read

out from the AS-i master. The LPF is updated cyclically by the AS-i master.

Whether and when as AS-i slave signals faults of the attached peripherals (for

example wire break) can be found in the description of the AS-i slave..

Structure of the Job Data in the Send Buffer

Bank Byte Meaning

2 0 Command number 3E

2 1 AS-i slave address

Structure of the Job Data in the Receive Buffer

Bank Byte Meaning

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

2 0 Echo of the command number 3E

2 1 Command status

2 2 slave 0 slave 1 slave 2 slave 3 slave 4 slave 5 slave 6 slave 7

2 3 slave 8 slave 9 slave 10 slave 11 slave 12 slave 13 slave 14 slave 15

2 4 slave 16 slave 17 slave 18 slave 19 slave 20 slave 21 slave 22 slave 23

2 5 slave 24 slave 25 slave 26 slave 27 slave 28 slave 29 slave 30 slave 31

2 6 reserv. slave 1B slave 2B slave 3B slave 4B slave 5B slave 6B slave 7B

2 7 slave 8B slave 9B slave

10B

slave

11B

slave

12B

slave

13B

slave

14B

slave

15B

2 8 slave

16B

slave

17B

slave

18B

slave

19B

slave

20B

slave

21B

slave

22B

slave

23B

2 9 slave

2B4

slave

25B

slave

26B

slave

27B

slave

28B

slave

29B

slave

30B

slave

31B

The bits in the LPF data have the following meaning:

Bit=0: Slave signals no peripheral fault

Bit=1: Slave signals peripheral faults

1 2 ... 116 117 118 119 120 121 122 123 124 125 126 ... 149 150

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