Removing Interface Modules In Pcs 7 - Siemens SIMATIC S7-400H System Manual

System modifications in operation
14.4 Removing components in PCS 7
14.4.8

Removing interface modules in PCS 7

Always switch off the power before you remove the IM460 and IM461 interface modules,
external CP 443-5 Extended DP master interface module and their connecting cables.
Always switch off power to an entire subsystem. To ensure that this does not influence the
process, always set the subsystem to STOP before you do so.
Procedure
1. Change the hardware configuration offline (see section PCS 7, step I: Offline modification
2. Modify and download the user program (see section PCS 7, step II: Editing and
3. Stop the standby CPU (see section PCS 7, step III: Stopping the standby CPU (Page 214))
4. Download the new hardware configuration to the standby CPU (see section PCS 7, step IV:
5. Follow the steps below to remove an interface module from the subsystem of the standby
6. Switch to CPU with altered configuration (see section PCS 7, step V: Switch to CPU with
7. To remove an interface module from the subsystem of the original master CPU (currently
8. Change to redundant mode (see section PCS 7, step VI: Transition to redundant state
218
of the hardware configuration (Page 212))
downloading the user program (Page 213))
Loading new hardware configuration in the standby CPU (Page 214))
CPU:
– Switch off power to the standby subsystem.
– Remove an IM460 from the central unit.
or
– Remove an expansion unit from an existing chain.
or
– Remove an external DP master interface module.
– Switch on the power to the standby subsystem again.
modified configuration (Page 215))
in STOP mode):
– Switch off power to the standby subsystem.
– Remove an IM460 from the central unit.
or
– Remove an expansion unit from an existing chain.
or
– Remove an external DP master interface module.
– Switch on the power to the standby subsystem again.
(Page 216))
System Manual, 09/2007, A5E00267695-03
S7-400H