![background image](http://html1.mh-extra.com/html/racom/ripex/ripex_user-manual_3186409015.webp)
Step 1
Polling cycle starts:
FEP sends a request packet for RTU3 through COM1 to
the connected RipEX.
Step 2
FEP’s RipEX broadcasts this packet on Radio channel.
RipEX3 and RipEX1 receive this packet.
RipEX2 doesn’t receive this packet, because it is not within
radio coverage of FEP’s RipEX.
Step 3
RipEX3 and RipEX1 send the received packet to their
COM1 and COM2.
Packet is addressed to RTU3, so only RTU3 responds.
RipEX1 is set as a repeater, so it retransmits the packet
on Radio channel. Packet is received by all RipEXes.
Step 4
RipEX2 sends repeated packet to its COM1 and COM2.
RTU2 doesn’t react, because the packet is addressed to
RTU3.
RipEX3 and FEP’s RipEX
do not
send the repeated
packet to their COM ports, because it has already been
sent (RipEX3) or received (FEP’s RipEX) on their COM
(anti-duplication mechanism).
RTU3 sends the reply packet.
Step 5
RipEX3 broadcasts the reply packet from RTU3 on Radio
channel.
Packet is received by RipEX1 and FEP’s RipEX.
15
© RACOM s.r.o. – RipEX Radio modem & Router
RipEX in detail
Содержание RipEX
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