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

System modifications during operation
17.3 Adding components in PCS 7
17.3.9

Adding interface modules in PCS 7

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 PCS 7, step 2: Offline
2. Stop the reserve CPU (see section PCS 7, step 3: Stopping the reserve CPU (Page 288))
3. Download the new hardware configuration to the reserve CPU (see section PCS 7, step
4. Proceed as follows to expand the subsystem of the present reserve CPU:
5. Switch to CPU with altered configuration (see section PCS 7, 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 PCS 7, step 6: Transition to redundant
8. Modify and download the user program (see section PCS 7, step 7: Editing and
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modification of the hardware configuration (Page 288))
4: Loading a new hardware configuration in the reserve CPU (Page 289))
– 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 289))
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.
system mode (Page 291))
downloading the user program (Page 292))
System Manual, 03/2012, A5E00267695-11
S7-400H