CHAPTER 13 RS-485 COMMUNICATIONS
Parameter read
13
CMND
DATA
(n)
50h
Sent from host controller
7
0
Memory type
See the table below.
Address (L)
Quantity (01h to 15h)
Address (M)
Address (H)
Number of readed
out bytes (L)
Number of readed
out bytes (H)
No.(01h to 99h)
00h
(Designated No. ×x 6) + 2
00h
* Designate addresses (L) and (M) in a BCD.
Example: 49 → 49h, 50 → 50h
Memory type
21h
22h
23h
Parameter
PA1_
PA2_
PA3_
Parameter of designated No. (6 bytes)
7
(Decimal point position)
0
00
Data sign
0: +, 1: -
Data status
0: Normal. 1: Memory error
(10th digit)
(9th digit)
(8th digit)
(7th digit)
(6th digit)
(5th digit)
(4th digit)
(3rd digit)
(2nd digit)
(1st digit)
* The data is a 10-digit BCD.
Sent from servo amplifier
Memory type
Address (L)
Address (M)
Address (H)
Number of readed out
bytes (L)
Number of readed out
bytes (H)
STR1
STR2
7
0
See the table on the left.
Quantity (01h to 4h)
No.(01h to 99h)
00h
(Designated No. ×x 6) + 2
00h
Status data
Parameter of
designated No.
Parameter of
designated No. + 1
Parameter of designated
No. + Designated
quantity - 1
13-54 PC Loader Communications