sauter FH - Data Interfaces; RS 232 Data Interface Assignment; RS 232 Interface Protocol

FH-BA-e-2430 en | 23
11 Interfaces
11.1 Assignment of the RS 232 data interface
SUB-D 8-pin female
Pin Signal Illustration
2 GND Earthing
3 OK
Input for control
signal
4 NG Upper limit value
5 TXD RS 232 output
6 NG Lower limit value
7 GND Earthing
8 RXD RS 232 input
11.2 Interface protocol
RS-232C parameters
- Baud rate: 9600
- Data bit: 8
- Parity: none
- Stop bit: 1
The measured value is requested by the ASCII character "9".
The measured value returned looks like this:
e.g. 0011.70 means -11.70 Newton, if Newton is set
|_______> first character describes the sign (0 = minus = push; 1 = plus =
pull)
|--------|____> the remaining 6 digits describe the measured value as an ASCII
character string
or: 1021.15 means +21.15 N (tensile force)