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04/99 AWB 2700-1311 GB
5 Slave Addressing
Slaves without CPU
The master and slaves without CPU can
communicate with one another using the Suconet K
or K1 protocol. The master selects the protocol
automatically according to the capabilities of the
slaves. It is not necessary to set the receive or send
data length in the topology configurator. Suconet K/
K1 selects the appropriate message length and
automatically addresses the relevant data areas in
your application.
This means that remote I/O operands can be
accessed in exactly the same way as local I/O
operands.
The general syntax rule for addressing I/O operands
is:
Operand Data type Line.Station.Module.Byte.Bit
If the PS 4-300 is used as the master, the following
slave operands can be addressed using the values
specified in the table:
Table 6: Operand addressing for slaves without CPU
I = Input; Q = Output
IS = Status/diagnostics
IA = Analog input, QA = Analog output,
IC = Counter (function block)
Operand Line Station Module Word/byte Bit
I/Q/IS 1 to 3
(0 = master)
1 to 30 (line 1)
1 to 8 (line 2, 3)
(0 = master)
1 to 5 (master local
expansion modules)
(0 = master basic unit)
1 to 6 (slave local
expansion modules)
(0 = slave basic unit)
0, 1, 2, ... 0 to 7
IB/IAB/ISB
QAB
–
IW/QW/ IAW/
QAW/ICW
0, 2, 4, ... –
ID/QD/ICD 0, 4, 8, ... –
H1311g.bk Seite 61 Freitag, 4. Juni 1999 1:12 13
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