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1 gener a l user p ar amet ers – HEIDENHAIN TNC 406 User Manual

Page 269

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248

13 Tables and Overviews

13.1 Gener

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Gap-control feed rate (only with gap control
via gap signal)

If the voltage at the analog input is less than the
threshold for the free-run feed rate, the TNC
positions the electrode at the feed rate entered
in this machine parameter, multiplied by a
factor from the PLC.

MP2142
1
to 99.9 [mm/min]

External data transfer

Control character for end of file

MP5010
Control character for end of text (e.g., MP 5010=3: EXT): ASCII character
Do not send control character for end of text: 0

Control character for end of transmission

MP5011
Control character for end of text (e.g., MP 5011=4: EOT): ASCII character
Do not send control character for end of transmission: 0

Adapt TNC interface to an external device

MP5020
7 data bits (ASCII code, 8th bit = parity): +0
8 data bits (ASCII code, 9th bit = parity): +1

Block Check Character (BCC) any: +0
Block Check Character (BCC) control character not permitted: +2

Transmission stop through RTS active: +4
Transmission stop through RTS inactive: +0

Transmission stop through DC3 active: +8
Transmission stop through DC3 inactive: +0

Character parity even: +0
Character parity odd: +16

Character parity not desired: +0
Character parity desired: +32

2 stop bits: +64
1 stop bit: +128

Example:

Use the following setting to adjust the TNC interface to an external non-
HEIDENHAIN device:

8 data bits, any BCC, transmission stop through DC3, even character
parity, character parity desired, 2 stop bits

Input value:

1+0+8+0+32+64 = 105 (input value for MP5020)

Parity setting for LSV-2 protocol

MP5100
No parity: 0
Even parity: 1
Odd parity: 2

Eroding

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