Functions
8.4 Redundancy with IM 153-2
ET 200M
162 Operating Instructions, 12/2008, EWA-4NEB780600602-08
8.4 Redundancy with IM 153-2
Use
You can operate the interface module IM 153-2 redundantly
● on the SIMATIC S7-400H (e.g. CPU 417-4H)
● with GSD file on any DP master (e.g. S5-115H)
When configuring with a GSD file, the redundant operation of the IM 153-2 interface
module can take place only in DPV0 mode. This operating mode is set differently
dependent on the configuration tool.
● with software redundancy
For the basic package
STEP 7
, the optional software
SIMATIC S7 Software Redundancy
is required. The optional software includes an online help in which the use and function of
the software redundancy is described.
● to standard
Specification slave redundancy V1.2, Nov. 2004 of the PROFIBUS user organization;
order no: 2.212
– System Redundancy (SR)
– Flying Redundancy (FR)
Conditions for the ET 200M
● Configuration with active bus modules
The configuration with active bus modules 6ES7195-7HD10-0XA0 or
6ES7195-7HD80-0XA0 ensures a greater availability of the ET 200M.
● 2 x IM 153-2 on bus module BM IM/IM
The arrangement specifications named in the chapter "Installation (Page 59)" apply to the
active bus modules and interface modules used.
● Software redundancy and system redundancy (SR) are possible with the
IM 153-2 / -2 FO as of 6ES7153-2AA02-0XB0 / -2AB01-0XB0
● Flying redundancy (FR) is possible with IM 153-2 / -2 FO as of 6ES7153-2Bxx1-0XB0
– The redundant master system must be configured in accordance with the demands on
H systems.
– The GSD file of the IM 153-2 (GSD rev. 5) must be imported to the configuration tool.
Note
STEP 7
offers no support for configuring an H system with flying redundancy.
● In redundant mode the function SYNC / FREEZE is not activated.
Note
If the function SYNC / FREEZE is nevertheless activated in a redundant system, the user
bears the responsibility for the behavior of the H system (e.g. when changing over).
● In a redundant system, you can only use the IM 153-2 interface module on DP masters
that support the "fail safe" parameter. The IM 153-2 will not run on DP masters that do not
support this parameter, and the BF LED flashes.
Tip: You can see in the GSD-file of the DP master whether this "fail safe" is supported.
To Next Page
Loading...
