Fanuc 18iM, logical AND

[Mika M.]

Hello Everyone!

The machine in question is Doosan H100 6 with FANUC 18iM control - and here's the problem: the block marked below yells "macro format error".

IF [#19 LT 0] GOTO991
--> IF [[#19 GT 6.] AND [#19 LT 101.]] GOTO991 <---
IF [#19 GT 148.] GOTO991

The block works just fine with FANUC 6M and 32iM so why not with 18iM?
How should the block be written to make it work?

[MysticMonkey]

some thing to do with the decimal places ?

[Mika M.]

No, I don't think so. I already tried dropping the decimal points - didn't help.

[fanuc-support.c]

Hello.

What you are trying to do is not possible on an 18 (i believe). I just tried it and got the same alarm - even without decimals.

IF[#500 AND #501 EQ] GOTO1 => This is ok - example.

For what you want to do, you need two separate lines.
IF [#19 GT 6.] GOTO1
#3000=1(WHATEVER)
N1IF [#19 LT 101.] GOTO990

Never played on a 6M before.

Hope this helps.

[Mika M.]

The block

IF [[#19 GT 6.] AND [#19 LT 101.]] GOTO991

didn't work with Fanuc 15M either, but this did:

IF[#19 GT 6.] AND[#19 LT 101.] GOTO991

I hope the above works with 18iM too - I can't test this right now.

Thank you all for your time!

[sinha_nsit]

AND has two uses: bitwise and Boolean.
For some (illogical, in my opinion) reason, Fanuc has made its use as a Boolean function a parameter issue. While bitwise AND would always work, Boolean AND (returning TRUE or FALSE) would work only with appropriate parameter setting. For example, on 0i you have to set 6006#0 (MLG) to 1. Other control versions may have the same or a similar parameter.
In fact, this applies to OR and XOR also.

[dcoupar]

Parameter 6006 bit 0 is MLG on the 18i also.

[Mika M.]

The posts about the parameter solved the problem. Thank you sinha_nsit and dcoupar!