Error
bit
Description
LED
None
7
TBD
None
None
6
TBD
None
Overload Error
5
In case the current load cannot be controlled with the designated
maximum force, it will be set as "1".
Red Blink
None
4
TBD
None
None
3
TBD
None
None
1
TBD
None
Input Voltage Error
0
In case the input voltage is out of
the operating voltage range
designated in the control table, it will be set as "1".
Red On
P a g e | 16
Progressive Automations – Position Control Communication Protocol
▪
Element Description
1. HEADER (3Byte)
•
Data indicating the start of transmission: 0xFFFFFF
•
Individual ID number for each actuator (1 ~253).
2. ID (1Byte)
•
Error status during operation for each bit
4. HARDWARE ERROR (1Byte)
•
Additional Packet factor according to Feedback Data.
5. FACTOR
Verification data to check omission and any changes of packet data. The interaction formula will be:
•
Checksum = 0xFF - (LOWER_BYTE (ID + SIZE + ERROR + FACTOR#1 + … + FACTOR#N))
•
LOWER_BYTE = Only the lower 1 byte is taken among the summed data values.
= Divide the summed data value by 0x100 and take only the remainder.
•
Here is the formula for above.
LOWER_BYTE (ID + SIZE + ERROR+ FACTOR#1 + … + FACTOR#N) == (ID + SIZE + ERROR+ FACTOR#1 + … +
FACTOR#N)% 0x100
6. CHECKSUM
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
