Redundancy With The Im 153-2 - Siemens SIMATIC ET 200M Manual
Distributed i/o device
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Also See for SIMATIC ET 200M:
- Workshop manual (14 pages) ,
- Operating instructions manual (274 pages) ,
- Operating instructions manual (271 pages)
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3.5
Redundancy with the IM 153-2
You can operate the IM 153-2 with redundancy
S on S7 DP masters (e.g. S7-400H)
S on S5 DP masters (e.g. S5-115H)
S with software redundancy
S in accordance with the relevant standard (Specification System Redundancy
(SR) V1.0, Dec. 2001 of the PROFIBUS user organization)
Prerequisites for the ET 200M
S Installation on active bus modules
S The bus module 6ES7 195-7HD10-0XA0 ensures a high level of availability for
the ET 200M and shorter switchover times in the case of redundancy.
S 2 IM 153-2 on bus module BM IM/IM
The rules given in Section 4.1.4 apply for the used active bus modules and
interface modules.
S Possible with the IM 153-2/-2 FO as of 6ES7 153-2AA02/-2AB01
S In redundant mode, the SYNC/FREEZE function should not be activated.
Note
If the SYNC/FREEZE function is activated in a redundant system, the user must
assume responsibility for the resulting behavior of the H system (e.g. at
switchovers).
S In a redundant system you can only use the IM 153-2 on DP masters that
support the fail-safe parameter. The IM 153-2 will not start up on DP masters
that don't support this parameter, and the BF LED flashes.
Tip: You can tell from the DDB file of the DP master whether it supports the
fail-safe parameter or not.
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
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Configuration Options with the ET 200M
3-9
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