Siemens 6ED1050-1AA00-0BE8 Mathematic instruction error detection, Setting the Par parameter

LOGO! functions

4.4 Special functions list - SF

Setting the Par parameter

The following illustration shows the view in programming mode that corresponds to the first example (12 + (6 / 3)) - 1:

% 9  23  35 0

3UHVV

ႱႧ

% 9  23  35 /

3UHVV

ႱႧ

3UHVV

ႱႧ

% 9  23  35 +

% 9  4HQൺ S 

Use the and keys to navigate between the operand value, operator, and operation priority. To change a value, use the and keys to scroll through value choices for each value. Use the key to navigate from one screen to the previous screen when the cursor is on the V1..V4 line, and the key to navigate to the next screen from the PR1..PR3 line. Use the OK key to accept changes.

4.4.33Mathematic instruction error detection

Short description

The mathematic instruction error detection block sets an output if an error has occurred in the referenced Mathematic instruction (Page 265) function block.

	Symbol in LOGO!			Wiring	Description
				Input En	A change in the status from 0 to 1 at input En
	(Q				(Enable) enables the mathematic instruction error
	5	(ᇄ	4		detection block.
	3DU			Input R	A signal at input R resets the output.
				Parameter	MathBN: block number of a mathematic instruction
					Err: ZD: Divide by 0 error
					OF: Overflow error
					ZD/OF: (Divide by 0 error) OR
					(Overflow error)
					AutoRst: Reset the output before the next execution
					of the mathematic instruction error function block. Y =
					yes; N = no
				Output Q	Q is set high if the error to detect occurred in the last
					execution referenced mathematic instruction function
					block
					LOGO!
268					Manual, 04/2011, A5E03556174-01