Monomaster And Multimaster Modes With S5-95U As Dp Master - Siemens SIMATIC S5 Manual

S5-95U – addressing, accessing the distributed I/O and diagnostics with STEP 5

10.4 Monomaster and multimaster modes with S5-95U as DP master

Monomaster mode Monomaster mode means that there is one DP master on the bus. No other
DP master is operating elsewhere on the bus.
Figure 10-2 S5-95U – monomaster mode
Multimaster mode
Multimaster mode means that there are at least two masters on the bus, for
example an S5-95U and an IM 308-C, or two S5-95Us.
Figure 10-3 S5-95U – multimaster mode
Rules
COM ET 200 Windows supports the configuration of multiple DP masters on
a bus:
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
DP master
S5-95U
Slave No. 10
DP master 1
Master system 1
S5-95U
Slave No. 10 Slave No. 11
Enter the entire bus configuration before you start exporting the data to an
S5-95U (see Section 8.4.2).
If you change the bus parameters in one program file, you must always
re-transfer all bus parameters to each DP master.
Master system 1
Slave No. 11
DP master 2
Master system 2
S5-95U
Slave No. 12 Slave No. 13
10
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