Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS - Manual (Page 93)

Formatting and Interpreting Data Blocks
Chapter 7
7Ć11
Figure 7.5
Second Status Word
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Second Status word
11054
Command Taken
Diagnostic Valid
Position Valid
Following
Error Valid
Axis Fault
Move Number;
BCD Format
Loss of Power
Programming Error
Block ID
Word 4 (Axis 1)
Word 8 (Axis 2)
Word 12 (Axis 3)
Bit 0Ć5 Move Number
These bits indicate the active move within the moveset in BCD format.
Bit 6 Loss of Power
When set, this bit indicates a loss of power across one of the following
sets of terminals:
terminals 1 and 12 (input supply) of the left wiring arm
terminals 1 and 6 (analog supply) of the right wiring arm
If this bit is on, then the immediate stop bit in the status block is on,
indicating that immediate stop has been executed after detection of the
loss of power.
Bit 7 Programming Error
If the 1771-M3 controller detects an illegal bit combination, such as a
non-BCD value where one is expected, or an illegal bit combination in the
command block, it turns on the programming error bit.
When this bit is on, bits 10 thru 12 of this status word provide a code to
identify the block containing the programming error.