Mp5020.0 mp5020.1 mp5020.2, Bit 0, 7 or 8 data bits 0 = 7 data bits 1 = 8 data bits – HEIDENHAIN TNC 407 (243 020) Technical Manual User Manual
Page 671: Bit 1, Bit 2, Bit 3, Bit 4, Character parity 0 = even 1 = odd, Bit 5, Character parity 0 = not required 1 = required
Character parity
Bits 4 and 5 determine the type of parity check (see paragraph 1.1.3 "Checking data").
Stop bits
Bits 6 and 7 determine the number of stop bits sent at the end of a character.
MP 5020.0 Operating mode EXT1
MP 5020.1 Operating mode EXT2
MP 5020.2 Operating mode EXT3 (PLC)
Entry: %xxxxxxxx
Bit 07 or 8 data bits
0 = 7 data bits
1 = 8 data bits
Bit 1Block check character
0 = any BCC
1 = BCC not control character
Bit 2Transmission stop by RTS
0 = not active
1 = active
Bit 3Transmission stop by DC3 0 = not active
1 = active
Bit 4Character parity
0 = even
1 = odd
Bit 5Character parity
0 = not desired
1 = desired
Bit 6/7
Stop bits
Bit 6
Bit 7
1 1/2 stop bits
Bit
0
0
2 stop bits
Bit
1
0
1 stop bit
Bit
0
1
1 stop bit
Bit
1
1
For operating modes EXT1/EXT2/EXT3, MP5030 defines the transmission protocol.
MP5030.0
Operating mode EXT1
MP5030.1
Operating mode EXT2
MP5030.2
Operating mode EXT3 (PLC)
Entry : 0 or 1
0 = "Standard data transfer"
1 = "Transfer blockwise"