Configuring Hardware and Communication Connections STEP 7.pdf

Configuring the Distributed I/O (DP)
Procedure: "Packing" Address Spaces Together
1. Select one contiguous range of modules whose addresses are to be packed.
2. In the Details view of the configuration table, click on the Pack Addresses
button.
The address areas for inputs, outputs, and motor starters are packed
separately.
- The beginning of the address area is defined by the address of each
module that is selected first and has the form X.0.
- If the bit address is not 0, the next (available) byte address from which the
selected area can be inserted is used automatically, for example, (X+1).0.
- If there is no other contiguous range, packing takes place automatically
into available address spaces.
Undoing Address Packing
If you want to set the start address of a module with a "packed" address again as a
byte address, proceed as follows:
1. Select the module with the packed address (e.g. 100.2).
2. Click the "Pack Addresses" button.
The start address of the module will be set to the next free byte address
(e.g. 101.0, if this address is still free).
Special considerations for modules with packed addresses
When a module has a packed address, it can no longer be assigned a slot from the
point of view of the CPU. For this reason SFC 5 (GADR_LGC) reports the error
message W#16#8099 (slot not configured) for the actual slot of the module.
SFC 49 (LGC_GADR) and SZL-ID W#16#xy91 (module status information) are
also incapable of evaluating a module with packed addresses.
From the point of view of the CPU, interrupts can also not be assigned for a
module with packed addresses. Therefore, in DPV1 mode an additional diagnostic
address is automatically assigned for the module.
The features "Pack addresses" and "Plug/remove interrupt" are mutually
exclusively.
Configuring Hardware and Communication Connections with STEP 7
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