Multiple Concentrator Network
MS-5000 Multidrop Concentrator User’s Manual
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Multiple Poll Sequence
First Poll Sequence.
Concentrator 02 in figure 2-5 polls its decoders like a
concentrator in a typical, single concentrator network. It receives a hex poll
character (1C) and Decoder 01’s data, shown in figure 2-6.
Figure 2-6 Concentrator to Decoder Polling Sequence
Second Poll Sequence.
When Concentrator 02 is polled by Concentrator
X, Concentrator 02 responds by transmitting its hex poll character (1E), an
STX, the decoder’s multidrop address (01), then the decoder's data, shown
in figure 2-7.
Figure 2-7 Concentrator to Concentrator Polling Sequence
When Concentrator X relays this information to the host, it substitutes the polled
concentrator’s multidrop address (02) in place of 1E hex and transmits:
0201
data
“02” is Concentrator 02’s address; “01” is Decoder 01’s address.
R ES 1C R EQ
1C STX DA TA ETX LR C
AC K
R E S
Decoder 01
Concentrator 02
Start of Sequence
End of Sequence
RES 1E REQ
1E STX 01DATA ETX LRC
ACK
RES
Concentrator X
Concentrator 02
Start of Sequence
End of Sequence
Summary of Contents for MS-5000
Page 1: ...MS 5000 Multidrop Concentrator User s Manual P N 83 005000 REV J...
Page 8: ...viii MS 5000 Multidrop Concentrator User s Manual...
Page 52: ...Chapter 3 Menu Configuration 3 18 MS 5000 Multidrop Concentrator User s Manual 3 Serial Config...
Page 66: ...Chapter 4 Serial Commands 4 14 MS 5000 Multidrop Concentrator User s Manual 4 Operations...
Page 90: ...A 14 MS 5000 Multidrop Concentrator User s Manual Appendices...
