Siemens MOBY FC 56, Technical Description

Page: 17 / 154

Block Specifications
2-5
FC 56
J31069-D0155-U001-A0-7618
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 315-2 DP 316-2 DP; 318-2 DP 416; 417; CP 443-5 Ext.
Max. no. of
ASMs
Max. no. of
SLGs
(channels)
Max. no. of
ASMs
Max. no. of
SLGs
(channels)
Max. no. of
ASMs
Max. no. of
SLGs
(channels)
ASM 475 (central)
1
32 64 32 64 – –
ASM 475 (distributed
via ET 200M)
2
64 x 7 896 123 x 7 1722 123 x 7 1722
ASM 473 (distributed
via ET 200X)
3
64 x 7 448 123 x 7 861 123 x 7 861
ASM 452 64 64 123 123 123 123
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.