Addition Of Interface Modules - Siemens CPU 410-5H Process Automation System Manual

10.3.9

Addition of interface modules

Always switch off power before you install the IM460 and IM461 interface modules, external
CP443-5 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 Step 2: Modify the hardware
2. Stop the reserve CPU (see section Step 3: Stop the standby CPU (Page 142))
3. Download the new hardware configuration to the reserve CPU (see section Step 4:
4. Proceed as follows to expand the subsystem of the present reserve CPU:
5. Switch to CPU with altered configuration (see section Step 5: Switch to CPU with
6. Proceed as follows to expand the subsystem of the original master CPU (currently in
7. Change to redundant system mode (see section Step 6: Transition to redundant system
8. Modify and download the user program (see section Step 7: Modify and download the
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
configuration offline (Page 141))
Download new hardware configuration to the standby CPU (Page 142))
– Switch off the power supply of the reserve subsystem.
– Insert the new IM460 into the central unit, then establish the link to a new expansion
unit.
or
– Add a new expansion unit to an existing chain.
or
– Plug in the new external DP master interface, and set up a new DP master system.
– Switch on the power supply of the reserve subsystem again.
modified configuration (Page 143))
STOP mode):
– Switch off the power supply of the reserve subsystem.
– Insert the new IM460 into the central unit, then establish the link to a new expansion
unit.
or
– Add a new expansion unit to an existing chain.
or
– Plug in the new external DP master interface, and set up a new DP master system.
– Switch on the power supply of the reserve subsystem again.
state (Page 144))
user program (Page 145))
System modifications during redundant operation
10.3 Adding components
147