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13. COMMUNICATION FUNCTIONS
13.12.4 External I/O pin statuses (DIO diagnosis)
(1) External input pin status read (CN1A
CN1B)
Read the ON/OFF statuses of the external input pins.
(a) Transmission
Transmit command [1][2] and data No. [4][0].
Unit
Command Data No.
IFU DRU
[1][2] [4][0]
(b) Reply
The ON/OFF statuses of the input pins are sent back.
b31 b0
0: OFF
1: ON
b1
Command of each bit is transmitted to the master
station as hexadecimal data.
bit External input pin bit External input pin bit External input pin bit External input pin
0 CN1A-4 8 CN1A-32 16 CN1B-10 24
1 CN1A-5 9 CN1A-34 17 CN1B-12 25
2 CN1A-7 10 CN1A-36 18 CN1B-29 26
3 CN1A-9 11 CN1A-37 19 CN1B-31 27
4 CN1A-10 12 CN1B-4 20 CN1B-32 28
5 CN1A-12 13 CN1B-5 21 CN1B-34 29
6 CN1A-29 14 CN1B-7 22 CN1B-36 30
7 CN1A-31 15 CN1B-9 23 CN1B-37 31
(2) External input pin status read (CN5)
Read the ON/OFF statuses of the external output pins.
(a) Transmission
Transmit command [1][2] and data No. [4][1].
Unit
Command Data No.
IFU DRU
[1][2] [4][1]
(b) Reply
The slave station sends back the ON/OFF statuses of the output pins.
b31 b0
0: OFF
1: ON
b1
Command of each bit is transmitted to the master
station as hexadecimal data.
bit External input pin bit External input pin bit External input pin bit External input pin
0 CN5-1 8 CN5-11 16 CN5-20 24
1 CN5-2 9 CN5-12 17 CN5-19 25
2 CN5-3 10 CN5-13 18 26
3 CN5-4 11 CN5-14 19 27
4 CN5-5 12 CN5-15 20 28
5 CN5-6 13 CN5-16 21 29
6 CN5-7 14 CN5-17 22 30
7 CN5-10 15 CN5-18 23 31