Festo CTEU-PB Electronics Description page 95

3. Diagnostics
7 6 5 4 3
1 0
7 6 5 4 3
0 0 0
7 6 5 4 3
Fig. 3/4: Channel-related diagnostics: byte 1 ... 3
Festo P.BE-CTEU-PB-OP+MAINT-EN en 1208NH English
2 1 0
Bit
2 1 0
Bit
0 0
0
2 1 0
Bit
Byte 1:
Module number of the channel-related dia-
gnostics
Module number 0 ... 3 (0: base CTEU-PB)
Bit 7; 6 fixed at 1; 0
Byte 2:
module type
Module type 0 ... 5 (fixed at 0)
Input/output
0; 0 = reserved 1; 0 = output
0; 1 = input 1; 1 = input/output
Byte 3:
type of diagnostics
Error type (see Tab. 3/11)
Data format of the channel:
0; 0; 0 = reserved 1; 0; 0 = 1 byte
0; 0; 1 = 1 bit 1; 0; 1 = 1 word
0; 1; 0 = 2 bits 1; 1; 0 = 2 words
0; 1; 1 = 4 bits 1; 1; 1 = reserved
3-15