7-21
1
Before Using the Products
2
Preparat on
3
Connect on
4
Setup
5
Ad ustment
6
When n Troub e
7
Supp ement
External scale RS232 communication procedure
Refer to the instruction manual of the host for the transmission/reception method of com-
mand. Following shows the communication example of the driver to Pr5.31 “Axis address
= 1”.
Transmission starts
N
N
N
N
Y
Y
Y
Y
transmission finishes
05h transmission
Host requests
for absolute
data to driver
Host receives
absolute data
from driver
04h transmission
06h transmission 15h transmission
Reception of
absolute data
(15 characters)
04h reception
06h reception
05h reception
Check sum
OK'ed reception
01h transmission
00h transmission
3Dh transmission
*
1
*
2
C2h transmission
Enter the Pr5.31 value of the driver to which you want to communicate from the host to
axis (*1 data) of the command block, and transmit the command according to the RS232
communication protocol. For details of communication, refer to P.7-27, "Communica-
tion".
Data of *1 and *2 are determined by the setup
of Pr5.31 “Axis address”.
Axis address
(example)
Data of
*
1 Data of
*
2
0 00h 3Eh
1 01h 3Dh
2 02h 3Ch
3 03h 3Bh
4 04h 3Ah
5 05h 39h
6 06h 38h
7 07h 37h
8 08h 36h
9 09h 35h
10 0Ah 34h
11 0Bh 33h
12 0Ch 32h
13 0Dh 31h
14 0Eh 30h
15 0Fh 2Fh
16 10h 2Eh
17 11h 2Dh
18 12h 2Ch
19 13h 2Bh
20 14h 2Ah
21 15h 29h
22 16h 28h
23 17h 27h
24 18h 26h
25 19h 25h
26 1Ah 24h
27 1Bh 23h
28 1Ch 22h
29 1Dh 21h
30 1Eh 20h
31 1Fh 1Fh
Check sum becomes OK'ed when the lower
8-bit of the sum of the received absolute data
(15 characters) is 0.
7
2. Absolute system
Supplement
Transferring external scale absolute data
Caution
• Allow 50 ms or longer interval for axis switching when you want to
capture multiple axes data.
• It is recommended for you to repeat the above communication more
than 2 times to confirm the absolute data coincide, in order to avoid
mis-operation due to unexpected noise.
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