plc:plc
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plc:plc [2019/10/18 11:50] – ivan | plc:plc [2020/09/04 14:15] – ivan | ||
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====== PLC ====== | ====== PLC ====== | ||
- | PLC - programmable logic controller. | + | PLC stands for " |
PLC controller can load and run small binary programs (PLC procedures). PLC procedure should be written in a simplified C-like language, compiled and stored in PLC controller memory to be ready to run. myCNC software includes [[plc: | PLC controller can load and run small binary programs (PLC procedures). PLC procedure should be written in a simplified C-like language, compiled and stored in PLC controller memory to be ready to run. myCNC software includes [[plc: | ||
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^ Address ^ Description ^ | ^ Address ^ Description ^ | ||
| 20000...20100 | Print variable value in myCNC control message widget for debugging purpose. Values written to this registers will be printed in myCNC control software in Message widget {{mycnc: | | 20000...20100 | Print variable value in myCNC control message widget for debugging purpose. Values written to this registers will be printed in myCNC control software in Message widget {{mycnc: | ||
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+ | It is possible to access the state of the output via gvarget commands from within the PLC process: | ||
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+ | < | ||
+ | b=gvarget(0x407); | ||
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+ | Starting from 0x400 to represent OUT0, this is a hexadecimal system that is simple to convert to dotted decimals (through the likes of a simple reference site [[https:// | ||
+ | |||
=== The hardware access registers === | === The hardware access registers === | ||
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| < | | < | ||
| < | | < | ||
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+ | Variables used in Software PLC: | ||
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+ | ^Variable^Use^Example^Comment^ | ||
+ | | 100020 | Jog the selected axis (100020 through to 100027) | // | ||
+ | | 100040 | Launch a Hardware PLC from within a Software PLC | // | ||
+ | | 100041 | Eparameter to feed into the Hardware PLC being launched using 100040 | // | ||
* [[software_plc_examples|Software PLC Examples]] | * [[software_plc_examples|Software PLC Examples]] |
plc/plc.txt · Last modified: 2022/11/07 16:03 by ivan