Installation manual
CNC 8035
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7.2
PLC program execution
The PLC executes the user program cyclically. In other words, once it executes the complete
program, it restarts running this program from the first instruction.
This cyclic processing of the program is done as follows:
1.
At the beginning of the cycle, PLC’s “I” resources are assigned the current values of the physical
inputs (connectors).
For example, if the physical input I10 is at 24V, the PLC sets the I10 resource to "1".
2.
It allocates the current values of the logic CNC outputs (CNCREADY, START, FHOUT, etc.) to
PLC resources M5500 thru M5957 and R550 thru R562 .
3.
It runs the program cycle.
The following sections indicate how the PLC program is structured and which are its execution
modules. See
"7.4 Modular structure of the program"
4.
After executing the cycle, it updates the Logic CNC inputs (/EMERGEN, /STOP, /FEEDHOL, etc.)
with the current values of PLC resources M5000 thru M5465 and R500 thru R505.
5.
It assigns the current values of the PLC’s “O” resources to the physical outputs (connectors).
For example, if the "O5" resource is at "1", the PLC sets physical output O5 (connector) to 24V.
6.
The cycle ends and is ready for the next scan.
Bear in mind that all the actions of the program executed by the PLC alter the status of its resources.
Example: I10 AND I20 = O5
When this condition is met [resource I10 is "1" and I20 is also "1"], the PLC sets resource "O5"
to "1". If this condition is not met, the PLC sets resource "O5" to "0".
Summary of Contents for 8035-M
Page 1: ...Soft M V15 3x Soft T V16 3x CNC 8035 Ref 1106 INSTALLATION MANUAL M T MODELS...
Page 2: ......
Page 4: ......
Page 10: ......
Page 12: ......
Page 18: ...CNC 8035 18 Version history M...
Page 24: ...CNC 8035 24 Version history T...
Page 28: ...CNC 8035 28 Safety conditions...
Page 32: ...CNC 8035 32 Material returning terms...
Page 34: ...CNC 8035 34 Additional remarks...
Page 36: ...CNC 8035 36 Fagor documentation...
Page 56: ...Installation manual CNC 8035 1 CNC CONFIGURATION CNC structure SOFT M V15 3X SOFT T V16 3X 56...
Page 178: ...Installation manual CNC 8035 4 MACHINE PARAMETERS Tables SOFT M V15 3X SOFT T V16 3X 178...
Page 424: ......
Page 430: ...Installation manual CNC 8035 B APPENDIX Probe connection SOFT M V15 3X SOFT T V16 3X 430...
Page 450: ...Installation manual CNC 8035 G APPENDIX Key codes SOFT M V15 3X SOFT T V16 3X 450...
Page 454: ...Installation manual CNC 8035 I APPENDIX Key inhibiting codes SOFT M V15 3X SOFT T V16 3X 454...
Page 468: ...CNC 8035 N APPENDIX SOFT M V15 3X SOFT T V16 3X 468 Installation manual...
Page 469: ...CNC 8035 N SOFT M V15 3X SOFT T V16 3X 469 Installation manual...
Page 470: ...CNC 8035 N SOFT M V15 3X SOFT T V16 3X 470 Installation manual...