Mitsubishi Electronics MR-J2S- A instruction manual Saving ABS 32-bit data Clearing register

15. ABSOLUTE POSITION DETECTION SYSTEM

2

C0 C1 Y41

Counter Check sum ABS

counter transfer mode

Rotation direction

M13 judgment

D8 K4

PLS processing command

M4 C0

(Continued from preceding page)

			DMOVP A0		D3
			MOVP K0		A0
	FROMP H0001		K7872 D8		K1
			WAND H0004		D8
			WAND H8000		A1
				PLS	M13
				NEG	D4
				K1	D4
				NEG	D3
K0		D3		K1	D4

2

Saving ABS 32-bit data

Clearing register

*1 Reading X-axis rotating direction parameter

Rotation direction parameter mask

ABS data sign mask

PLS processing command

Reversing polarity of upper 16 bits

Subtraction for upper 16 bits

Reversing polarity of lower 16 bits

Lower 16 bits 0

D4 1 D4

Detecting absolute position polarity and A1SD71 rotating direction

Reversing polarity of absolute position

Read	ABS data
enabled	counter

MOV K1X30 D5

WAND H0003		D5
WOR D5		A0
	FOR	K2
		D1
		C1

Reading 4 bits

Masking 2 bits

Adding 2 bits

Right rotation of A0 2 bits

Counting check sum data reception frequency

Reading checksum 6 bits

(2 bit 3 times)

PLS M5

Completion of reading, 2 bits of check sum

3 (To be continued) 3

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