Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 116)

L-force | PLC Designer
Concepts and Base Components
114 DMS 4.1 EN 03/2011 TD29
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Special cases:
• Node has no main network: This means there is no subnet index nor a network
address in the main network. In this case the address is set to 0x0000.
• Node with main network but without parent: In this case a subnet index with 0 bit
length is assumed. The partial address corresponds to the network address,
supplemented by filler bits if required.
Abb. 22 Example - Node address
The node address representation is always hexadecimal. The individual address
components (two bytes in each case) are separated by a “:” (colon). The bytes within a
component appear sequentially without separator (see example above). Since this
represents a byte array and not a 16-bit value, the components are not displayed in
little-endian format. For manually entered addresses missing digits in an address
component are filled with leading zeros from the left: “274” = “0274”. To improve
readability the output should always include the leading zeros.
Absolute and relative addresses
Communication between two nodes can be based on relative or absolute addresses.
Absolute addresses are identical to node addresses. Relative addresses specify a path
from the sender to the receiver. They consist of an address offset and a descending
path to the receiver.