6. EtherCAT Settings
8
6.3. Allocations of I/O Memory Areas
The I/O allocations of the Digital Sensor Communication Unit are as follows:
Input
area
3900
3904
(Digital Sensor Communication Unit
→
PLC)
10 bytes
▪
Details on output area
No output area is allocated.
▪
Details on input area
Address
Bit
Function name
Description
3900
15 to 0
Read input
1st word
Sensor unit No. 1 Sensor Input 1
Sensor unit No. 1 Sensor Input 2
Sensor unit No. 8 Sensor Input 1
Sensor unit No. 8 Sensor Input 2
3901
15 to 0
Read input
2nd word
Sensor unit No. 9 Sensor Input 1
Sensor unit No. 9 Sensor Input 2
Sensor unit No. 16 Sensor Input 1
Sensor unit No. 16 Sensor Input 2
7 to 0
Sensor Status bits
Sensor status
3902
15 to 8
Number of Sensors setting (register at
power-on)
7 to 0
Connecting
Sensor bits
Number of Sensors setting with dummy
3903
15 to 8
Warning status (Sensor unit No. 1 to 8)
7 to 0
Sensor Status
16 bits
Warning status (Sensor unit No. 9 to 16)
3904
15 to 8
Reserved
Reserved
•Read input 1st word
15 14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
3900
Sensor 8
Sensor 7
Sensor 6
Sensor 5
Sensor 4
Sensor 3
Sensor 2
Sensor 1
IN2 IN1 IN2 IN1
IN2
IN1
IN2
IN1
IN2
IN1
IN2
IN1 IN2 IN1 IN2
IN1
•Read input 2nd word
15 14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
3901
Sensor 16 Sensor 15
Sensor 14
Sensor 13
Sensor 12
Sensor 11 Sensor 10
Sensor 9
IN2 IN1 IN2 IN1
IN2
IN1
IN2
IN1
IN2
IN1
IN2
IN1 IN2 IN1 IN2
IN1
•Sensor Status bits
15 14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
3902
(Number of Sensors setting)
0
0
0
0
0
0 S_ERR BUSY
•Sensor Status(Warning Status) 16 bits
15 14 13 12
11
10
9
8
7
6
5
4
3
2
1
0
3903
Sensor unit No.
7
6
5
4
3
2
1
0
(Number of Sensors)
3904
Sensor unit No.
(Reserved)
15 14 13 12 11 10 9
8
Summary of Contents for CJ1W-NC82
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