Command Message Structure (Idu To Sspb); Value; Table 15: Command Message Structure - Advantech SSPBMg–C200–BRE Installation And Operating Manual

12.3.2 C M
OMMAND ESSAGE

TABLE 15: COMMAND MESSAGE STRUCTURE

Byte Name
1 Address
2 Command Request Status
3 Data Byte 1 Not used if command = 0x01
4 Data Byte 2 Not used if command = 0x01
5 Data Byte 3 Not used
6 Data Byte 4 Not used
7 Checksum
S (IDU
TRUCTURE
Description
Address of SSPB
Transmit ON/OFF
Change Address
Set Input Frequency
Not applicable for these units
Tx control if command = 0x02
New address if command = 0x03
Input Frequency if command = 0x04
Not applicable for these units
Not used if command = 0x02
Not used if command = 0x03
Input Frequency if command = 0x04
Not applicable for these units
Algebraic sum of bytes 1 – 6, modulo
256
SSPB)
TO
0x01 to 0x0F
0x01
0x02
0x03
0x04
Not applicable for these units
0xAA
0 = OFF, 1 = ON
0x01 to 0x0F
MS byte (most significant byte)
Not applicable for these units
0xAA
0xAA
0xAA
LS byte (least significant byte)
Not applicable for these units
0xAA
0xAA
SSPBMg-C200-BRE

Value

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