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Message Information
Status Request message:
In order to find out the STATUS of the unit a status request message must be sent.
Message
Byte No.
1
2
3
4
5
6
The unit would then reply with a STATUS REPLY message.
Status Reply message
This message tells the host computer the status of the unit.
RCU100 reply:
Message
Byte No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RCU200 reply:
Message
Byte No.
1
2
3
Issue 3.15
Set Value /
(example)
02
6
?
32
?
03
Set Value /
(example)
02
14
?
33
'O'
'R'
'A'
'1'
'1'
'1'
'0'
'1'
?
03
Set Value /
(example)
02
13
?
RCU100 and RCU200 redundancy control units
Length
Description
(bytes)
1
STX
1
No of bytes in message
1
Address
1
Message instruction
1
Checksum
1
ETX
Length
Description
(bytes)
1
STX
1
No of bytes in message
1
Address
1
Message instruction
Position of the UNIT SELECT switch 'A' or 'B'
1
or 'O'
('O' = AUTO)
('A' = UNIT A)
('B' = UNIT B)
Position of the remote/local switch 'R' or 'L'
1
('R' = Remote)
('L' = Local )
Coax switch position 'A', 'B' or 'S',
1
('A' = UNIT A)
('B' = UNIT B)
('S' = Standby)
Summary alarm status '0' or '1'
1
(0 = Alarm)
(1 = OK)
Unit A online status '0' or '1'
1
(0 = Offline)
(1 = Online)
Unit A alarm status '0' or '1'
1
(0 = Alarm)
(1 = OK)
Unit B online status '0' or '1'
1
(0 = Offline)
(1 = Online)
Unit B alarm status '0' or '1'
1
(0 = Alarm)
(1 = OK)
1
Checksum
1
ETX
Length
Description
(bytes)
1
STX
1
No of bytes in message
1
Address
Page 11
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