IL PB BK DI8 DO4/EF-PAC
3-14
PHOENIX CONTACT
7725_en_01
Start fragment:
Byte 1:
Service
Byte 2:
Terminal number
Byte 3:
Invoke ID
Byte 4:
Index high
Byte 5:
Index low
Byte 6:
Subindex
Byte 7:
Length, if required
Byte 8:
Data block, if required
...
Byte n:
Data block, if required
Table 3-6
Byte 1 - Service in start fragment:
Byte 1
7
6
5
4
3
2
1
0
Request/
Response
0
0
Fragmenta-
tion
Action
Bit 7:
Request/Response
0 = Request
1 = Response
Bits 6 to 5:
Fragment type
00 = Start fragment
Bit 4:
Fragmentation
0 = Not fragmented
1 = Fragmented
Bits 3 to 0:
Action
00
hex
No action (clear)
01
hex
to 02
hex
Reserved
03
hex
Read (IL PB BK DI8 DO4/EF)
04
hex
Write (IL PB BK DI8 DO4/EF)
05
hex
Reserved
06
hex
Read PCP (I/O device)
07
hex
Write PCP (I/O device)
08
hex
Read and write simultaneously (special objects
only)
09
hex
to 0F
hex
Reserved
Содержание IL PB BK DI8 DO4/EF-PAC
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Страница 62: ...IL PB BK DI8 DO4 EF PAC 5 2 PHOENIX CONTACT 7725_en_01 ...
Страница 64: ...IL PB BK DI8 DO4 EF PAC 6 2 PHOENIX CONTACT 7725_en_01 ...
Страница 72: ...IL PB BK DI8 DO4 EF PAC A 8 PHOENIX CONTACT 7725_en_01 ...