Slot 0
7725_en_01
PHOENIX CONTACT
B-3
This object is specifically intended for use under DP/V0. The data length for write access
always depends on the number of configured terminals. The number of
activated/deactivated terminals is completely irrelevant. If, for example, 15 terminals were
configured, 4 of which are to be deactivated and 11 of which are to be activated, only the
number of configured terminals is relevant. In this case, 2 bytes are required in order to
display 15 terminals. If 25 terminals are configured, 4 bytes are required. In the case of write
access, at least as many bytes must be used as are necessary for the activation status for
each device to be transmitted. More bytes can also be transmitted, however only up to 8
bytes, as the station can only manage a maximum of 63 terminals.
Index 7:
Terminal activation/restart
Function:
Activation/deactivation of I/O terminals,
bus restart (write), number of terminals, and status (read)
Access:
Simultaneous read and write access via DP/V0 with command 08
Length:
3-byte header, 1-byte length,
up to n = 8 bytes for up to 63 terminals
Structure
:
See below
Write:
Byte 1
08
hex
Byte 2
00
hex
Byte 3
07
hex
Byte 4
Length of the following data n
Byte 5
1
2
3
4
5
6
7
8
...
Byte 4+n
x
x
x
x
x
x
x
x
Bit = 0: Terminal and slot inactive
Bit = 1: Terminal and slot active
Read (write response):
Byte 1
88
hex
Byte 2
Status
Byte 3
Length of the following data m
Byte 4
Number of available terminals (k)
Byte 5
1
2
3
4
5
6
7
8
...
Byte 3+m
x
x
x
x
x
x
x
x
Bit = 0: Terminal and slot inactive
Bit = 1: Terminal and slot active
Содержание IL PB BK DI8 DO4/EF-PAC
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Страница 72: ...IL PB BK DI8 DO4 EF PAC A 8 PHOENIX CONTACT 7725_en_01 ...
