2
Function
Festo – CPX-E-PB-EN – 2017-07 – English
13
Device-specific diagnostics (16 bytes)
Byte
Table of contents
Explanation
7
Header
10
h
8
Type
82
h
9
Slot
0
h
10
Slot
0
h
11
Module 0 (Bit 0 and 1)
…
Module 3 (Bit 6 and 7)
2 bits per module:
00 = no error (user data valid)
01 = module error (user data invalid)
10 = incorrect module (user data invalid)
11 = module failed/not present (user data invalid)
12
Modules 4 … 7
è
Byte 11
13
14 … 22
Reserved
–
1) Bits 6 and 7 are reserved.
Tab. 2.9
Identification-related diagnosis (7 bytes)
Byte
Table of contents
Explanation
23
Header
47
h
24
Modules 0 … 7
1 bit per module to display pending diagnostics
25
Modules 8 … 10
1 bit per module to display pending diagnostics
26 … 29
Reserved
–
1) Bits 3 ... 7 are reserved.
Tab. 2.10
Channel-related diagnosis (variable length)
Byte
Table of contents
Explanation
30
Module x
(Byte 1)
Module number
31
(Byte 2)
Channel number and input/output
32
(Byte 3)
Type of diagnostics (error type/channel type)
33
Module y
(Byte 1)
Module number
34
(Byte 2)
Channel number and input/output
35
(Byte 3)
Type of diagnostics (error type/channel type)
…
…
…
60
Module z
(Byte 1)
Module number
62
(Byte 2)
Channel number and input/output
62
(Byte 3)
Type of diagnostics (error type/channel type)
1) The entry is made gap-free in ascending order according to module numbers and independently of the temporal sequence of the diagnostic
messages. If necessary, entries with larger module numbers are moved.
2) 11 diagnostic messages maximum can be processed.
Tab. 2.11
