Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS - Manual (Page 104)

Formatting and Interpreting Data Blocks
Chapter 7
7Ć22
Encoder Lines
This word specifies the number of encoder lines per encoder revolution
(Figure 7.12).
Figure 7.12
Encoder Lines Word
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Encoder Lines
Word 8 (Axis 1)
Word 27 (Axis 2)
Word 46 (Axis 3)
11034
The value of this word times the mulitplier
specified by bit 15 of the next word must equal the
actual number of encoder lines, BCD format. For
10,000, program 0000.
The value of this word times the encoder lines multiplier specified by bit
15 of the next higher word, must equal the actual number of lines on the
encoder.
You can enter values up to 10,000 with the x1 multiplier. Entering zero
(0000) specifies 10,000 lines. You can enter higher values by using the x4
multiplier.
For example, if your encoder has 12,000 lines, you can enter 3000 in the
encoder-lines word, and turn on bit 15 of the next word to indicate x4:
3,000 x 4 = 12,000 lines.
The status block indicates a programming error after transfer of the
parameter block if:
(Encoder Lines) x (Feedback Multiplier) x (Encoder Lines Multiplier) >
32,767