Т³гж 13, Rs 485 communication protocol – t&mSystems Project MIX818 User Manual

Page 13

Advertising
background image

Status Data To Paging Console

Inquiry Data To Remote Wall Plate

hA 1 E Matrix address code zone data AM
AA: data head
1 E: Zone status feedback to paging console
Matrix address code=
01 : master matrix
02: extension matrix 1
03: extension matrix 2
04: extension matrix
3 zone data: the zone data is in 8 bytes,
0: no paging
1 :paging, ie: binary system
00000011 B:zonel and zone 2 busy
0000100B: zone 3 busy,
11111111 B: all 8 zone busy
AM: (accumulation = 2nd data byte
+ 3rd data byte + 4th data byte)

If the zone is not controlled by a remote wall
plate , the inquiry data will not be sent to this
zone.

The inquiry command which is from the Matrix

to

the remote wall plate is both inquiry and status
data to update the wall plate status, ie:source
input, zone volume.The inquiry data format is:
hA 20 line input volume AM
hA: data head
20: inquiry to wall plate
line input: source input
01 : line 1
02 : line 2

08 : line 8
09 : remote sources input
volume: volume level
00 : 0 level
01:1 level
AM: (accumulation = 2nd data byte
+ 3rd data byte + 4th data byte)

RS 485 Communication Protocol

Baud Rate: 57600bps/S Parity
Check: Odd parity check
Data: 16 bytes
Accumulation = 2nd data byte
+3rd data byte + 4th data byte

PROJECTMIX818 Inquiry Data

ThePROJECTMIX818 sends inquiry data to 2
remote paging consoles ,8 remote wall panels
and extension Matrix. The new data will feed
-back to the Matrixwhen any new data has been
checked.Any extension PROJECTMIX818 will
only enquire to its own 8 remotewall panels only.

Inquiry Data To Paging Console

The PROJECTMIX818 sends the inquiry data
to remote paging consoles in the following format:

AA 10 00 00 AM (accumulation)
AA: data head
10: inquiry to the paging console
00: meaningless
AM: (accumulation = 2nd data byte
+ 3rd data byte + 4th data byte)

Feedback Data From PagingConsole

AA 11 Matrix address code zone data AM
AA: data head
11 : zone paging command

Matrix address code:

01 : master matrix,
02 : extension matrix 1
03 : extension matrix 2
04 : extension matrix
3 zone data: the zone data is in 8 bytes
0 : no paging
1 : paging, ie: binary system
00000011 B : zone1 and zone 2 paging
00000100B : zone 3 paging
11111111 B : all 8 zone paging
AM: (accumulation = 2nd data byte
+ 3rd data byte + 4th data byte)

4. RS 485 COMMUNICATION PROTOCOL

The feedback data from the remote paging console
to the Matrix after got inquiry andready for paging
format as:

After getting paging data from the remote

paging

console, the Matrix sends zone status

data to the

paging console in the following format:

9

Advertising