Delta ASD-A3-0121, Руководство пользователя

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ASDA-A3 Absolute System
Revision December, 2017
10-17
10
10.3.6 Reading the absolute position with DI/DO
Set P2.070 Bit 0 to 0 so that you can read the PUU number with DI/DO.
See the descriptions below:
Bit 79 – Bit 64 Bit 63 – Bit 32 Bit 31 – Bit 16 Bit 15 – Bit 0
Check Sum
Encoder PUU
-2147483648 to +2147483647
0
Encoder status
(P0.050)
Set P2.070 Bit 0 to 1 so that you can read the pulse number with DI/DO.
See the descriptions below:
Bit 79 – Bit 64 Bit 63 – Bit 32 Bit 31 – Bit 16 Bit 15 – Bit 0
Check Sum
Pulse number in one rotation
0 to 16777215 (=16777216-1)
Encoder turn
-32768 to +32767
Encoder status
Description:
Check Sum = (((((((0xA700) XOR 0x605A) XOR 0x30A5)
XOR 0x5A06)
WORD_0
0xA700
+ XOR
WORD_1
+
0x605A
XOR
WORD_2
+
0x30A5
XOR
WORD_3
+
0x5A06
Output
Note:
1. This algorithm has no positive or negative sign.
2. 0xA700, 0x605A, 0x30A5, and 0x5A06 are the constants for hexadecimal format.
3. WORD_0: encoder status (Bit 15 – 0)
WORD_1: encoder turn (Bit 31 – 16)
WORD_2: encoder pulse number (Bit 47 – 32)
WORD_3: encoder pulse number (Bit 63 – 48)