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Installation / Preparation for Commissioning
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Page 76 of 111
TR - ELA - BA - DGB - 0029 - 00
08/29/2018
4.3 EPL Node-ID
Each EPL node (MN, CN and Router) is addressed by an 8 bit EPL Node-ID on the
EPL layer. This ID has only local significance, i.e. it is unique within an EPL segment.
The Node-ID is adjusted by means of the two HEX rotary switches SW1 = 16
0
and
SW2 = 16
1
, which are read-in only in the POWER-ON momentum. Additional
adjustments during operation are not recognized therefore.
EPL Node-
IDs 1…239 (1...0xEF) may used for the measuring system. The table
below shows the EPL Node ID assignment and allowed CN access options for the
EPL Node-ID intervals.
Figure 9: EPL Node-ID, switch assignment
EPL Node-ID
Description
CN access options
0
invalid
no
1…239
regular EPL Controlled Nodes
no / mandatory / optional
isochronous / async only
240
EPL Managing Node
mandatory / isochronous
241…250
reserved
no
251
EPL pseudo Node-ID to be used by
a node to address itself.
no
252
EPL dummy node
no
253
Diagnostic device
optional
isochronous / async only
254
EPL to legacy Ethernet Router
no / mandatory / optional
isochronous
255
EPL Broadcast
no
Table 1: EPL Node-ID assignment