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15. COMMUNICATION FUNCTION
15.5.4 External I/O signal statuses (DIO diagnosis)
(1) Reading of input device statuses
Read the statuses of the input devices.
(a) Transmission
Transmit command [1][2] and the data No. corresponding to the input device.
Command Data No.
[0][0] [1][2]
[0][1]
(b) Reply
The slave station sends back the statuses of the input pins.
b31 b0
0:OFF
1:ON
b1
Command of each bit is transmitted to the master
station as hexadecimal data.
Data No. [0][0] Data No. [0][1]
bit
Device name Symbol Device name Symbol
0 Servo-on SON
1 Forward rotation stroke end LSP
2 Reverse rotation stroke end LSN
3
4 Internal torque limit selection TL1
5 Proportion control PC
6 Reset RES
7 Clear CR
8
9
10
11 Forward rotation start ST1
12 Reverse rotation start ST2
13
14
15
16
17 Automatic/manual selection MD0
18 Proximity dog DOG
19
20
21
22
23 Override selection OVR
24 Temporary stop/Restart TSTP Point table No. selection 1 DI0
25 Point table No. selection 2 DI1
26
Point table No. selection 3 DI2
27 Gain changing CDP Point table No. selection 4 DI3
28 Point table No. selection 5 DI4
29 Point table No. selection 6 DI5
30 Point table No. selection 7 DI6
31
Point table No. selection 8 DI7