turck TN-IOL2 Series, Инструкция по эксплуатации

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V01.00 | 2021/05
27
9.3.6 Write
With a write operation, the device automatically executes a write command as soon as the
status of the start bit changes (rising or falling edge). The user must manually trigger the
switching of the start bit.
Proceed as follows to execute the command:
„
Set rising edge at START bit.
„
Evaluate the status of the RDY bit.
The RDY status bit behaves in the same way as the edge status of the START bit.
The RDY bit behaves as follows if during the command execution a tag is located in the detec-
tion range of the read/write head:
START RDY Meaning
0
Ò
1 0
Ò
1
Input data present
1
Ò
0 1
Ò
0
Input data present
The RDY bit behaves as follows if during the command execution no tag is located in the detec-
tion range of the read/write head:
START RDY Meaning
0
Ò
1
0 No tag within the detection range
0
Ò
1
Tag was or is in the detection range, input data available
1
Ò
0
1 No tag within the detection range
1
Ò
0
Tag was or is in the detection range, input data available