IL PB BK DI8 DO4/EF-PAC
3-16
PHOENIX CONTACT
7725_en_01
Abort/error fragment:
Table 3-9
Byte 1 - Service in abort/error fragment:
A response is sent after every request. This response indicates that the request has been
received and shows its current status:
Response structure:
The status is indicated when local PCP transmission is complete and in the event of an
error. In the event of an error, the data block can provide details. An error has occurred if the
value of the status byte does not equal 00
hex
.
Byte 1:
Service
Byte 2:
Error code, if required
...
Byte n:
Error code, if required
Byte 1
7
6
5
4
3
2
1
0
Request/
Response
1
1
Reserved
Bit 7:
Request/Response
0 = Request
1 = Response
Bits 6 to 5:
Fragment type
11 = Abort/error fragment
Bits 4 to 0:
Reserved
Communication can be reset at any time using 00
hex
and 60
hex
.
Byte 1:
Service (mirrored request with set response bit)
Byte 2:
Status, if required
Byte 3:
Length, only on first read response
...
Byte n:
Data block, if required
00
hex
No error
44
hex
Error during communication
Other errors
See "Error codes for DP/V1 and VC1 communication" on page A-3.
