progressive automations PA-12, Руководство пользователя

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Index Data Descrip � on
0 Start Byte 1 Start Byte 1 (0xFF)
1 Start Byte 2
Start Byte 2 (0xFF)
2 Start Byte 3 Start Byte 3 (0xFF)
3 ID Actuator ID (Range: 0 ~ 253, Broadcast ID: 254)
4 SIZE
Packet Size (CHECKSUM)
5 COMMAND Instruc � on
5+1 FACTOR #1 First Parameter
5+m FACTOR #m m th Parameter
5+N FACTOR #N Last Parameter
5+N+1 Check Sum
Check Sum = 0xFF - (LOWER_BYTE (ID + SIZE + COMMAND +
FACTOR#1 + … + FACTOR#N))
Start Byte 1
(0xFF)
Start Byte 2
(0xFF)
Start Byte 3
(0xFF)
ID
SIZE
(0 ~ 255)
COMMAND
(0 ~ 255)
FACTOR
#1
FACTOR #m FACTOR #N CHECKSUM
P a g e | 14
Progressive Automations – Position Control Communication Protocol
2. Packet Description
1) COMMAND PACKET
▪ Structure
▪ Element
▪ Element Description
1. HEADER (3Byte)
• Data indicating the start of transmission: 0xFFFFFF
2. ID (1Byte)
• The ID is a unique number used to address each actuator in a daisy chain connection.
• Factory default ID value is 0.
• In case of ID = 0 ~253, only the actuator with the reference ID will be operated.
• In case of ID = 254 (0xFE), "Broadcasting Mode” will be activated which operates all actuators at once and Feedback
Packet will not work.
3. SIZE (1Byte)
• Packet length in Byte unit.
• Data counting value after "Size" data (CHECKSUM).
• That is, Size value = Number of byte of "Factor" + 2
The structure and elements for Command Packets to operate your actuator are found below.