descrambled
Member
Hi all,
I am new to the PLCs and need some help on a relatively simple task.
I would like to be able to manually introduce/force a bias to an analog value in the block portion of the logic.
I was going to use an ADD instruction with Source A = my original signal and Source B = bias.
Please help me understand something:
1. Is the easiest way to do it by creating a Tag, referencing it as input for Source B and using several MOV instructions (with several values I would like to introduce) with upstream (to that MOV) contacts and then forcing/toggling contacts on/off?
2. If I use a "constant" reference for Source B - is there a way to change/force different values (both + and -) online?
3. I can tie Source B to the output of several SELect instructions in series, is there an instruction I can use/force online as a ON/OFF switch?
TEST1, 2, 3 below correspond to the 1,2,3 questions above.
Any input would be greatly appreciated.
I am new to the PLCs and need some help on a relatively simple task.
I would like to be able to manually introduce/force a bias to an analog value in the block portion of the logic.
I was going to use an ADD instruction with Source A = my original signal and Source B = bias.
Please help me understand something:
1. Is the easiest way to do it by creating a Tag, referencing it as input for Source B and using several MOV instructions (with several values I would like to introduce) with upstream (to that MOV) contacts and then forcing/toggling contacts on/off?
2. If I use a "constant" reference for Source B - is there a way to change/force different values (both + and -) online?
3. I can tie Source B to the output of several SELect instructions in series, is there an instruction I can use/force online as a ON/OFF switch?
TEST1, 2, 3 below correspond to the 1,2,3 questions above.
Any input would be greatly appreciated.