Siemens CP 243-2 - Manual (Page 121)

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
H
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
H
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