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Bit3～Bit5: Wrong parameter，fixed as 000
Bit6～Bit7: Instrument working mode，there are four mode:
Mode 1 (Long Data Mode: Set-up as 00)
GID of every instrument can receive info at this mode, and it can specifically
use on data info that is larger than 127 Bytes.
Mode 2 (ID Data Mode 1: Set-up as 01)
Once GID can transmit to particular SID instrument under this mode, it is
one to many; the single info must ≦127 Bytes.
Transmission: The 1
it becomes data.
Example: The SID of device A is 55, the SID of device B is 88, and they have
the same GID. Under mode 2, device A is going to transmit data
0x1234567890, 5 Bytes in total, to B device, A then sends data
0x881234567890, 6 Bytes in total to B, B will receive 0x551234567890, 6
Bytes in total. The 1
Mode 3 (ID Data Mode 2: Set-up as 10)
Once GID can transmit to particular SID instrument under this mode, it is
one to many; the single info must ≦127 Bytes.
Transmission: Data shall be transmitted under the same rule of the 13
nd
32
Byte.
Example: The GID of device A = AAAA, SID = 55; the GID of device B =
BBBB, SID = 88; the GID of device C = CCCC, SID = 99.
A is going to transmit 0x1234567890 to B, 5 Bytes in total. A then sends
0x04FFBBBB881234567890, 10Bytes in total, to B, B will receive
0x1234567890, 5 Bytes in total.
A is going to transmit 0x1234567890, 5 Bytes in total, to B via C. A then
sends 0x08FFBBBB88FFCCCC991234567890, 14 Bytes in total, C will
receive 0x1234567890, 5 Bytes in total, but B will not receive any data.
http://www.wenshing.com.tw; http://www.rf.net.tw
21
3
24
4
25
5
26
6
27
7
st
Byte is the SID of the receiver, and from the 2
st
Byte is the SID of the transmitter.
011
100
101
110
111
RD232-H Instruction Manual P.15
nd
Byte,
th
to
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