Difference between revisions of "Editing Digital I/O"

Revision as of 10:22, 19 May 2017

External Digital I/O can be managed by the program with a series of Non-Standard DMIS commands.
These commands can be applied to I/O at controller level (when supported) or to an external I/O card (Verify on Arco control Panel for suitable cards).

Reading the value of an Input

These commands read the value of an input at the moment the command is executed.

The sintax is : INPUT_READ(input_number,card_name)

Where

input_number: is the number of the input to be read

card_name: is the label of the additional card as described in Arco Control Panel.

If the card_name value is not specified, then the input is read from the controller and not from the additional board.

Example:
$$ read Input n° 5 from the controller

DECL/BOOL,RSLT

RSLT=ASSIGN/ INPUT_READ(5)

$$ read Input n° 5 from the external board with label ‘MyBoard’ set in the control panel.

RSLT=ASSIGN/ INPUT_READ(5,’MyBoard’)

Important Note

The command IOTEST(n) from version 3.6 has been obsoleted and it is no longer available.

Waiting a mask of input to be set

This command waits until the mask of input is active, after that, the execution continues.

The sintax is : CALL/EXTERN,DME,'logical_IO','wait_for_input_mask','card_name', input_number,value, input_number,value

Where

card_name: is the label of the additional card as described in Arco Control Panel.

input_number: is the number of the input to be read

value: is the expected value from the input (.true. or .false.)

If the card_name value is not specified, then the input is read from the controller and not from the additional board.

Example:
$$ wait until input 5 is true and 6 is false on the controller IO board

CALL/EXTERN,DME,'logical_IO','wait_for_input_mask',5,.true.,6,.false.

$$ wait until input 5 is true and 6 is false on the external board called ‘myBoard’ in the control panel

CALL/EXTERN,DME,'logical_IO','wait_for_input_mask',’myBoard’,5,.true.,6,.false.

Writing the value in an Output

This command sets the value of an output.
The sintax is : CALL/EXTERN,DME,'logical_IO','output_set', 'card_name', input_number,value

Where

card_name: is the label of the additional card as described in Arco Control Panel.

input_number: is the number of the input to be read

value: is the value to be set (.true. or .false.)

If the card_name value is not specified, then the input is read from the controller and not from the additional board.

Example:
$$ set the output 5 to true on the controller IO board

CALL/EXTERN,DME,'logical_IO', 'output_set',5,.true.

$$ set the output 5 to true on the external board called ‘myBoard’ in the control panel

CALL/EXTERN,DME,'logical_IO', 'output_set',’myBoard’,5,.true.

Important Note

The command:IOSET,n and IORESET,n from version 3.6 has been obsoleted and it is no longer available.