User's Manual

Table Of Contents
Document : WCAMODHEL.sxw
Example of a selective polling exchange :
WaveCard is configured like described below,
POLLING_ROUTE GROUP_NUMBER
Equipment A address 0x01
Equipment B address
Equipment C address
Equipment D address
Equipment E address
After transmitting the REQ_SEND_POLLING request, the distant equipments react in the following way:
Equipment A : responds to the request. PARTICULAR CASE, this module is the
first of table POLLING_ROUTE, and the first polling frame is sent in point-to-point mode;
Equipment B : responds to the request (belongs to the interrogated group)
Equipment C : responds to the request (belongs to the interrogated group)
Equipment D : responds to the request (belongs to the interrogated group)
Equipment E : no response (doesn't belong to the interrogated group).
WCAMODHEL Handbook page 57 of 74
Host
WaveCard
A
Grp 2
B
Grp 1
C
Grp 1
D
Grp 1
E
Grp 2