- 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 |
XX | 0XXX.XXX0 | XX | XX |
The data is still being transferred.
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
XX
‘W’ (0 x 57)
Status byte | Input byte 2 |
0XXX.0X0X | XX |
0011.0X1X | ‘G’ (0 x 47) |
Input byte 1
XX
‘A’ (0 x 41)
No received data available.
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
XX
‘O’ (0 x 4F)
Status byte | Input byte 2 |
0XXX.0X1X | XX |
0001.0X0X | XX |
Input byte 1
XX
XX
No received data available.
The information is in the input bytes.
-After the characters have been processed, RA is inverted.
Output byte 0 | Control byte |
XX | 0XXX.000X |
Output byte
XX
Output byte
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
Output Status TxD
Input Status RxD
RS232,TTY,RS485 |
| 9 |
