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RS232,TTY,RS485 750-650,651,653
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- As soon as TA = TR, the data has been transferred to the output buffer.
Input byte 0 Status byte Input byte 2 Input byte 1
XX 0XXX.XXX1 XX XX
The data is still being transferred.
XX 0XXX.XXX0 XX XX
Data transfer completed.
Receiving the character chain “WAGO”
- As soon as RA≠RR, the input bytes contain data.
Output byte 0 Control yte Output byte 2 Output byte 1
XX 0XXX.000X XX XX
Input byte 0 Status byte Input byte 2 Input byte 1
XX 0XXX.0X0X XX XX
No received data available.
‘W’ (0 x 57) 0011.0X1X ‘G’ (0 x 47) ‘A’ (0 x 41)
The information is in the input bytes.
- After the 3 characters have been processed, RA is inverted.
Output byte 0 Control byte Output byte 2 Output byte 1
XX 0XXX.001X XX XX
- If RA≠RR, the receiving of additional characters will continue.
Input byte 0 Status byte Input byte 2 Input byte 1
XX 0XXX.0X1X XX XX
No received data available.
‘O’ (0 x 4F) 0001.0X0X XX XX
The information is in the input bytes.
- After the characters have been processed, RA is inverted.
Output byte 0 Control byte Output byte Output byte
XX 0XXX.000X XX XX
Notes:
0 x 23 is a hexadecimal value
0101.1001 is a binary value
An X indicates that this particular value has no importance.
XX indicates that the whole value has no importance.
Status Indicators:
The 3 green LEDs have the following function:
Function Non-Function
Output Status TxD Input Status RxD