Table of Contents
7
Supplement
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".
Host requests
for absolute
data to driver
Host receives
absolute data
from driver
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, "Communication".
Caution
• Allow 50ms 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.
2. Absolute system
Transferring external scale absolute data
Transmission starts
05h transmission
N
04h reception
Y
00h transmission
01h transmission
*1
C2h transmission
3Dh transmission
*2
N
06h reception
Y
N
05h reception
Y
04h transmission
Reception of
absolute data
(15 characters)
N
Check sum
OK'ed reception
Y
06h transmission
15h transmission
transmission finishes
Data of *1 and *2 are determined by the setup
of Pr5.31 "Axis address" of the front panel.
Axis address
Data of *1
(example)
0
00h
1
01h
2
02h
3
03h
4
04h
5
05h
6
06h
7
07h
8
08h
9
09h
10
0Ah
11
0Bh
12
0Ch
13
0Dh
14
0Eh
15
0Fh
16
10h
17
11h
18
12h
19
13h
20
14h
21
15h
22
16h
23
17h
24
18h
25
19h
26
1Ah
27
1Bh
28
1Ch
29
1Dh
30
1Eh
31
1Fh
Check sum becomes OK'ed when the lower
8-bit of the sum of the received absolute data
(15 characters) is 0.
1
2
Data of *2
3Eh
3Dh
3
3Ch
3Bh
3Ah
39h
38h
37h
36h
35h
34h
33h
4
32h
31h
30h
2Fh
2Eh
2Dh
2Ch
2Bh
2Ah
29h
5
28h
27h
26h
25h
24h
23h
22h
21h
20h
6
1Fh
7
7-21
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