Acyclic communication (DP/V1 and PCP)
7725_en_01
PHOENIX CONTACT
3-15
Continue fragment:
Table 3-7
Byte 1 - Service in continue fragment:
End fragment:
Table 3-8
Byte 1 - Service in end fragment:
Byte 1:
Service
Byte 2:
Data block, if required
...
Byte n:
Data block, if required
Byte 1
7
6
5
4
3
2
1
0
Request/
Response
0
1
Fragment number (01
hex
- 1F
hex
)
Bit 7:
Request/Response
0 = Request
1 = Response
Bits 6 to 5:
Fragment type
01 = Continue fragment
Bits 4 to 0:
Counter
01
hex
to 1F
hex
fragment number
Byte 1:
Service
Byte 2:
Data block, if required
...
Byte n:
Data block, if required
Byte 1
7
6
5
4
3
2
1
0
Request/
Response
1
0
Reserved
Bit 7:
Request/Response
0 = Request
1 = Response
Bits 6 to 5:
Fragment type
10 = Last fragment (end fragment)
Bits 4 to 0:
Reserved
