[dadez87]

Hello to everyone.
I am new in this forum so nice to meet you!
I want to receive the signals on M-codes M300 and M301 on register R2100.0 and R2100.1, so:
M300 => R2100.0
M 301 => R2100.1
I made the following ladder according to the advices in this forum:
http://img155.imageshack.us/img155/8422/ladderd.jpg

But the problem is the following. Let us suppose that I start the machine and send the M300 code. The code is sent, but looking at the signals, I obtain the following:
http://img802.imageshack.us/img802/5...rafterm300.jpg
I mean, the MFIN signal is set to ON but still the MF signal is not turning off.

Then, I send the M301 code and everything is turning OFF, according to the following images.
http://img36.imageshack.us/img36/296...rafterm301.jpg

If I give the signal M301 and then M300, the opposite happens: on M301 everything is ON (MFIN and MF), then I give M301 and everything is working well and the signals are resetting!

Could you please tell me what I am doing wrong?
I also tried to use the FIN (G4.3) signal instead of MFIN, but it was not working. Using FIN the MF was always ON...

Thank you in advance for your help.
Davide

[viorel26]

1. What type of PMC ?
2. How is decoded the rest of M codes?
3. Search for G4.3 in the ladder and add there R2100.0 and 2100.1 for MFIN.Is not a good idea to have g4.3 2 times in the ladder
Excuse my English

[dadez87]

I have a Fanuc Robodrill 31i.
I will try to see how the other M-codes are codified.
I don't know why but today it is working.

By the way, sorry for my OT but I have a really important question. Do you know how I can convert a 2-byte INT to a 4-byte INT?
For example, I have a 2-byte INT on registers R2300/R2301 and I want to transform it to a 4-byte INT on registers 2400/2401/2402/2403.

I found out there is a SUB function which is CODB but I don't understand if it is correct and also I don't understand how it works.
Sorry for my OT but this is very important to solve for me...