CHAPTER 13 RS-485 COMMUNICATIONS
PC Loader Communications 13-55
13
Parameter write
DATA
(n)
51h
CMND
70
01h
(Designated No. x 6)
STR1
STR2
* If the entire data is correct, the data of the
designated quantity is written.
If an error is found, the following data is not
written.
Bit 6 of STR1 (data error) is turned on and the
number of data pieces actually written is sent
back.
Parameter of designated No. (6 bytes)
(8th digit)
Data sign
0: +, 1: -
70
(7th digit)
(6th digit) (5th digit)
(4th digit) (3rd digit)
(2nd digit) (1st digit)
(Decimal point position)
00
* The data is a 10-digit BCD.
0
70
01h
(Designated No. x 6)
00h
* Designate addresses (L) and (M) in a BCD.
Example: 49
→ 49h, 50 → 50h
Parameter of
designated No.
Parameter of
designated No.
+ 1
Parameter of
designated No.
+ Designated
quantity - 1
Memory type Parameter
21h PA1_
22h PA2_
23h PA3_
(10th digit) (9th digit)
00h
Sent from host controller
Memory type
Address (L)
Address (M)
Address (H)
No. of written bytes (L)
No. of written bytes (H)
See the table below.
Quantity (01h to 15h)
No.(01h to 99h)
Sent from servo amplifier
Memory type
Address (L)
Address (M)
Address (H)
No. of written bytes (L)
No. of written bytes (H)
See the table below.
Quantity (01h to 15h)
No.(01h to 99h)
Status data
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