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2.4
Number of MOBY Channels Which Can Be Connected
Each MOBY channel occupies 1 word in the input and output area of a SIMATIC
S7. The maximum number of MOBY modules permitted by the SIMATIC can
always be used. The following table gives you an overview.
Table 2-3
Number of MOBY channels
S7 CPU Type
1
ASM 475 (central)
ASM 475 (distributed
2
via ET 200M)
ASM 473 (distributed
3
via ET 200X)
ASM 452
1 The central layout can contain up to 3 expansion racks. A DP connection is not necessary with this layout.
2 With distributed layout, up to 7 MOBY modules (ASM 475) can be installed in each ET 200M.
3 Up to 7 ASM 473s can be installed in one distributed I/O ET 200X.
FC 56
J31069-D0155-U001-A0-7618
315-2 DP
Max. no. of
Max. no. of
ASMs
SLGs
(channels)
32
64
64 x 7
896
64 x 7
448
64
64
316-2 DP; 318-2 DP
Max. no. of
Max. no. of
ASMs
SLGs
(channels)
32
64
123 x 7
1722
123 x 7
861
123
123
Block Specifications
416; 417; CP 443-5 Ext.
Max. no. of
Max. no. of
ASMs
SLGs
(channels)
–
–
123 x 7
1722
123 x 7
861
123
123
2-5
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