VIPA IM 253 DP Series, Manual, Page: 50 / 100

Chapter 3 Deployment IM 253DP Manual VIPA System 200V
3-10 HB97E - IM - RE_253-xDPxx - Rev. 12/44
IM 253-2DP50 - DP-V0 slave (Redundant system)
In principal, the IM 253DPR consists of 2 PROFIBUS DP slave
connections. The two PROFIBUS slaves are controlling the operating
modes of each other. Both slaves have the same address at the
PROFIBUS and are communicating with a redundant DP master.
Both slaves are reading the peripheral inputs. Only one slave at a time has
access to the peripheral outputs. The other slave is passive and in stand-
by. As soon as the active slave is failing, the passive slave accesses the
peripheral outputs.
I/O
1.Slave 2.Slave
CPU IM 208
1.Master 2.Master
I/O
I/O
IM 253 DPR
IM 253 DPR
1.Slave 2.Slave
Next DPR-Slave
Please regard to use a redundant DP master for the redundant deployment
of the slave module. Every master unit needs the same parameterization
and bus configuration.
Redundant system
Requirements for
the deployment