8 – 18 HEIDENHAIN Technical Manual TNC 426, TNC 430
Stop bits Bits 6 and 7 determine the number of stop bits sent at the end of a character.
MP5020 Configuration of the data interface
Format: %xxxxxxxx
Input: Bit 0: 0 = 7 data bits, 1 = 8 data bits
Bit 1: 0 = any BCC, 1 = BCC not control character
Bit 2: 0 = transmission stop by RTS not active, 1 = active
Bit 3: 0 = transmission stop by DC3 not active, 1 = active
Bit 4: 0 = character parity even, 1 = odd
Bit 5: 0 = character parity not desired, 1 = desired
Bit 6 = 0, Bit 7 = 0: Length of the stop: 1.5 bits
Bit 6 = 1, Bit 7 = 0: Length of the stop: 2 bits
Bit 6 = 0, Bit 7 = 1: Length of the stop: 1 bit
Bit 6 = 1, Bit 7 = 1: Length of the stop: 1 bit
MP5020.0 Operating mode EXT1
MP5020.1 Operating mode EXT2
MP5020.2 Operating mode EXT3 (PLC)
Transmission
protocol
The transmission protocol for operating modes EXT1/EXT2/EXT3 is defined
with MP5030:
MP5030 Data transfer protocol
Input: 0 = standard data transfer protocol
1 = blockwise transfer
2 = without protocol (only for MP5030.2)
MP5030.0 Operating mode EXT1
MP5030.1 Operating mode EXT2
MP5030.2 Operating mode EXT3 (PLC)
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