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5-14
User Manual CM-CAN1
5 Control and reference input
5.5.6 Status
messages
Function: Status/actual value
Data direction: Drive unit -> Master
Type: Selective
Status messages are transmitted in the START and STOP system states.
CACNF Base ID
Status word Actual
Bytes 0-1 Bytes 2-3 Bytes 4-5
1 881 DRIVECOM status word
16-bit actual
frequency (Q0)
2.3 881 DRIVECOM status word 32-bit actual frequency (Q16)
4 881 EasyDrive status word 32-bit actual frequency (Q16)
Priority based on CAL = 3
Table 5.8 Status messages
Status
word: See description of status word
Reference: Actual frequency for control
Where CACNF=1 + 3:
The data format is
Int16Q0 -> Value range: -32767 to +32768
Byte 2 = Actual value Low Byte
Byte 3 = Actual value High Byte
Where CACNF=2 -4:
The data format is
Int32Q16 -> Value range: -32767,999 to +32768,999
Byte 2 = Actual value Low Word Low Byte
Byte 3 = Actual value Low Word High Byte
Byte 4 = Actual value High Word Low Byte
Byte 5 = Actual value High Word High Byte
Example: Actual value = 20.5 Hz Actual value data in Hex:
Byte 2 3 4 5
Content 0 80 14 0
0.5 = 2
-1
20 = 14 H