Comments (3)
klauer
commented on September 28, 2024
Chances are good the parser won't be as good as you're hoping (it's barely a prototype at this point), but the gist of it is as follows:
- Preferably using non-system Python, set up an environment using, e.g., miniconda:
$ conda create -n blark-env python=3.7
$ conda activate blark-env
- Install the library (using conda or otherwise, these steps are the same)
$ pip install blark
- Run the parser:
$ blark parse (filename)
where filename is a supported type from a standard TwinCAT project: .tsproj, .sln, .TcPOU, .TcGVL
from blark.
Beidendorfer
commented on September 28, 2024
Thanks for quick answers, I like the idea of the IEC parser.
I get at blark parse (filename) --verbose
*Parsing (file name)...
but then there is no output file or console message.
Where can I find the parsing ritual?
Thanks
from blark.
klauer
commented on September 28, 2024
No problem. The command-line tool isn't so user-friendly, try this instead:
blark parse (filename) -vvv (for very-very-verbose)
You should get something that looks like the following:
(blark) klauer-osx:plcs klauer$ blark parse lcls-plc-liquid-jet/LiquidJet.tsproj -v
* Loading project lcls-plc-liquid-jet/LiquidJet.tsproj
* Parsing /Users/klauer/docs/Repos/plcs/lcls-plc-liquid-jet/LiquidJetPLC/POUs/Main.TcPOU
(blark) klauer-osx:plcs klauer$ blark parse lcls-plc-liquid-jet/LiquidJet.tsproj -vvv
* Loading project lcls-plc-liquid-jet/LiquidJet.tsproj
* Parsing /Users/klauer/docs/Repos/plcs/lcls-plc-liquid-jet/LiquidJetPLC/POUs/Main.TcPOU
Successfully parsed /Users/klauer/docs/Repos/plcs/lcls-plc-liquid-jet/LiquidJetPLC/POUs/Main.TcPOU:
-------------------------------
PROGRAM Main
VAR
{attribute 'pytmc' := 'pv: XCS:LJH:JET:X'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 1^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 3^Input'}
MJetX : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:JET:Y'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 5^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 7^Input'}
MJetY : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:JET:Z'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 2^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 4^Input'}
MJetZ : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:DET:X'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 6^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 8^Input'}
MEpix : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:SS:TOP_X'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 1^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 3^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 5^Input'}
MTopX : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:SS:TOP_Y'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 2^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 4^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 6^Input'}
MTopY : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:SS:BOT_X'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 1^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 3^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 5^Input'}
MBotX : DUT_MotionStage;
{attribute 'pytmc' := 'pv: XCS:LJH:SS:BOT_Y'}
{attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 2^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 4^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 6^Input'}
MBotY : DUT_MotionStage;
fbMotionJetX : FB_MotionStage;
fbMotionJetY : FB_MotionStage;
fbMotionJetZ : FB_MotionStage;
fbMotionEpix : FB_MotionStage;
fbMotionTopX : FB_MotionStage;
fbMotionTopY : FB_MotionStage;
fbMotionBotX : FB_MotionStage;
fbMotionBotY : FB_MotionStage;
{attribute 'TcLinkTo' := 'TIID^Device 1 (EtherCAT)^E0 (EK1200)^E5 (EL2004)^Channel 1^Output'}
bGigePower AT %Q* : Bool;
END_VAR
//Update Axis status
MJetX.Axis.ReadStatus();
MJetY.Axis.ReadStatus();
MJetZ.Axis.ReadStatus();
MEpix.Axis.ReadStatus();
MTopX.Axis.ReadStatus();
MTopY.Axis.ReadStatus();
MBotX.Axis.ReadStatus();
MBotY.Axis.ReadStatus();
//fbMotion
fbMotionJetX(stMotionStage := MJetX);
fbMotionJetY(stMotionStage := MJetY);
fbMotionJetZ(stMotionStage := MJetZ);
fbMotionEpix(stMotionStage := MEpix);
fbMotionTopX(stMotionStage := MTopX);
fbMotionTopY(stMotionStage := MTopY);
fbMotionBotX(stMotionStage := MBotX);
fbMotionBotY(stMotionStage := MBotY);
//Hardware Enable
MJetX.bHardwareEnable := TRUE;
MJetY.bHardwareEnable := TRUE;
MJetZ.bHardwareEnable := TRUE;
MEpix.bHardwareEnable := TRUE;
MTopX.bHardwareEnable := TRUE;
MTopY.bHardwareEnable := TRUE;
MBotX.bHardwareEnable := TRUE;
MBotY.bHardwareEnable := TRUE;
//Gige Power
bGigePower := TRUE;
END_PROGRAM
-------------------------------
start
iec_source
program_declaration
program_type_name Main
var_declarations
var_body
pragma {attribute 'pytmc' := 'pv: XCS:LJH:JET:X'}
var_init_decl
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 1^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 3^Input'}
variable_name MJetX
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:JET:Y'}
var_init_decl
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 5^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 7^Input'}
variable_name MJetY
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:JET:Z'}
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 2^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 4^Input'}
var_init_decl
variable_name MJetZ
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:DET:X'}
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 6^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E29 (EL1088)^Channel 8^Input'}
var_init_decl
variable_name MEpix
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:SS:TOP_X'}
var_init_decl
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 1^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 3^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 5^Input'}
variable_name MTopX
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:SS:TOP_Y'}
var_init_decl
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 2^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 4^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E22 (EL1088)^Channel 6^Input'}
variable_name MTopY
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:SS:BOT_X'}
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 1^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 3^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 5^Input'}
var_init_decl
variable_name MBotX
simple_spec_init
simple_type_name DUT_MotionStage
pragma {attribute 'pytmc' := 'pv: XCS:LJH:SS:BOT_Y'}
var_init_decl
pragma {attribute 'TcLinkTo' := '
.bLimitForwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 2^Input;
.bLimitBackwardEnable := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 4^Input;
.bHome := TIID^Device 1 (EtherCAT)^E0 (EK1200)^E7 (EK1122)^E20 (EK1100)^E25 (EL1088)^Channel 6^Input'}
variable_name MBotY
simple_spec_init
simple_type_name DUT_MotionStage
var_init_decl
variable_name fbMotionJetX
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionJetY
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionJetZ
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionEpix
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionTopX
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionTopY
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionBotX
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
variable_name fbMotionBotY
simple_spec_init
simple_type_name FB_MotionStage
var_init_decl
pragma {attribute 'TcLinkTo' := 'TIID^Device 1 (EtherCAT)^E0 (EK1200)^E5 (EL2004)^Channel 1^Output'}
variable_name bGigePower
incompl_location %Q*
simple_spec_init
bit_string_type_name Bool
function_block_body
statement_list
method
expression
multi_element_variable
variable_name MJetX
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MJetY
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MJetZ
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MEpix
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MTopX
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MTopY
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MBotX
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
method
expression
multi_element_variable
variable_name MBotY
field_selector
variable_name Axis
field_selector
variable_name ReadStatus
fb_invocation
fb_name fbMotionJetX
param_assignment
variable_name stMotionStage
expression
variable_name MJetX
fb_invocation
fb_name fbMotionJetY
param_assignment
variable_name stMotionStage
expression
variable_name MJetY
fb_invocation
fb_name fbMotionJetZ
param_assignment
variable_name stMotionStage
expression
variable_name MJetZ
fb_invocation
fb_name fbMotionEpix
param_assignment
variable_name stMotionStage
expression
variable_name MEpix
fb_invocation
fb_name fbMotionTopX
param_assignment
variable_name stMotionStage
expression
variable_name MTopX
fb_invocation
fb_name fbMotionTopY
param_assignment
variable_name stMotionStage
expression
variable_name MTopY
fb_invocation
fb_name fbMotionBotX
param_assignment
variable_name stMotionStage
expression
variable_name MBotX
fb_invocation
fb_name fbMotionBotY
param_assignment
variable_name stMotionStage
expression
variable_name MBotY
assignment_statement
multi_element_variable
variable_name MJetX
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MJetY
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MJetZ
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MEpix
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MTopX
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MTopY
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MBotX
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
multi_element_variable
variable_name MBotY
field_selector
variable_name bHardwareEnable
expression
boolean_literal TRUE
assignment_statement
variable_name bGigePower
expression
boolean_literal TRUE
-------------------------------
[Success] End of /Users/klauer/docs/Repos/plcs/lcls-plc-liquid-jet/LiquidJetPLC/POUs/Main.TcPOU
The original grammar is here: https://github.com/klauer/blark/blob/master/blark/iec.grammar
It's converted into a lark-based grammar that's used by blark: https://github.com/klauer/blark/blob/master/blark/iec.lark
Eventually I plan to only have the .lark and remove the need for the conversion step - if I ever find time.
from blark.
Related Issues (20)
- Support TwinCAT solutions/project/source code files directly HOT 2
- Add Support for Multi-Line Object Oriented Function-Block Usage HOT 2
- Dereferenced Variables in Function Calls Not Parsing Correctly HOT 1
- Explicit support for base 10/decimal literals HOT 1
- Array Initialization with Zero HOT 3
- Remove `method_statement` from grammar HOT 1
- Fail to Parse Array of Arrays
- Variables Containing the word "Return" Incorrectly Identified as `RETURN` Statements. HOT 3
- Array of Pointer to Structure using Addresses Dereferencing by Index Failing to Parse HOT 1
- `POINTER TO STRING(c_Size - 1);` Not Parsing Correctly HOT 7
- Language features in upcoming TwinCAT 4026 release HOT 1
- Double-asterisk (`**`) exponential operator is not supported by TwinCAT
- Need Support for `JMP` Statements
- Variable with underscore HOT 7
- Failure to Parse POINTER TO Object using FB_Init HOT 8
- Add GitHub Actions job to deploy API documentation HOT 1
- apischema as a non-optional requirement? HOT 1
- Syntax Parsing Failure - Accessing an Attribute on a Dereferenced Pointer Returned from a Method Doesn't Work HOT 1
- Comments in output tree?
- Repeated Variable Declaration in Structure with a Single Structured Data Type Fails to Parse
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