Module technique, 2 module technique – HEIDENHAIN TNC 306 Technical Manual User Manual
Page 303
3/2000
TNC 416/TNC 406/TNC 306
Program creation
7-13
2.1.2 Module technique
It is good practice to make the maintenance of the PLC-programs easier by creating the program
with the most transparent structure possible. This can be best achieved by dividing the PLC-program
into individual Modules (structured programming).
Only the most important PLC-functions should be programmed in the main routine.
Individual PLC-functions such as M-function evaluation are programmed in their own Modules.
0
L M2719
1
SN M2719
;Activate the strobes for word processing
2
L M2497
3
SN M2497
;Activate the edge evaluation
4
L M2496
5
SN M2496
;Activate transfer of decoded M-codes
;(M1900 to M1999)
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20
L M1936
;M-Function M36
21
A M2045
;Change-signal for M-function
22
AN M2618
;Gap control already active?
23
CMT 36
;Gap control
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95
EM
;End main program
122
LBL 101
;Acknowledgment for M function
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125
EM
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151
LBL 36
;Gap control
152
CM 361
;Eroding ON
153
CM 101
Acknowledgment for M functions
154
EM
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220
LBL 361
;Eroding ON
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.225
EM
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Error conditions in the machine should be interrogated in the PLC-program and a plain language error
message should be displayed on the screen. See Chapter "Machine integration", Section "Display
and operation" and Chapter "PLC-programming", Section "Modules".