Allocations Of I/O Memory Areas - Omron CJ2H-CPU6-EIP Connection Manual

6.3. Allocations of I/O Memory Areas

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