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Intelligent slaves
51
04/
99 AW
B
27-
1184 G
B
Table 10: Syntax for addressing slaves for expanding
remote inputs/outputs
Intelligent slaves
When the master and an intelligent slave
communicate with one another, the application
determines which data is exchanged. You cannot
access the input/output operands directly. You must
therefore address the communication data using the
RD/SD syntax.
The table below shows the operands which are
available when the PS4-200 master PLC is operated
with intelligent slaves.
Table 11: Operand addressing of intelligent slaves
RD = Receive Data; defined receive data
SD = Send Data; defined send data
IL program
in ...
Data
flow
Ope-
rand
Data
type
Line
Station
Module
Byte/
word
Bits
S 40 syntax
Master
Master
↑
Slave 1
I
Bit
1
1
1
0
7
LD % I1.1.1.0.7
Master
↑
Slave 2
IB
Byte
1
2
0
0
–
LD% IB1.2.0.0
Communication data
Operands
Line
Station
Module
Word/byte
Bit
RD/SD
0, 1
(0 = master)
1 to 8
(0 = master)
0 to 6
0, 1, 2, ... (byte)
0, 2, 4, ... (word)
0 to 7
RDB/SDB
–
RDW/SDW
Status/diagnostic
IS
0, 1
(0 = master)
1 to 8
(0 = master)
0 to 6
0, 1, 2, ... (byte)
0 to 7
ISB
Содержание ps4-201-mm1
Страница 4: ...II 04 99 AWB 27 1184 GB...
Страница 36: ...32 04 99 AWB 27 1184 GB...
Страница 52: ...48 04 99 AWB 27 1184 GB...
Страница 58: ...54 04 99 AWB 27 1184 GB...
Страница 74: ...70 04 99 AWB 27 1184 GB...
Страница 88: ...84 04 99 AWB 27 1184 GB...