bigjoe

Sergei, with all due respect I am reading the manual, It's just that I don't understand some of it so I ask the question here. It may be basic to you but not to the others. We can always ask decent simple question here, I beleive. regards, johnny

guys, thanks a lot johnny

Hi, just want to ask what is meant by the prefix D, e.g. DMOV? also want is meant by PID? regards, johnny

thanks panic the fxo terminal: input com x1 x2...........x13 output +24 com com0 Y0 com1 Y1........com4 Y4 Y5 Y6 Y7 What if I will use the +24 V on the output side to power up the sensor and the black wire to one of the input side e.g. X1. Is that correct then? or it will do harm or something strange will happen? regards, johnny

Hi, I have an omron reflective sensor and I want to use it with my mitsu FX0 plc. I am not sure how to connect it or it might damage the plc. The sensor terminals goes like this: brown wirel------------------+24V black wirel----[load]----l blue wirel-------------------0V The load base from the configuration, should be connected between the black and brown wire and when the light is out there is a +24V between those wire. comments? suggestions? thanks in advance johnny

thanks for your replies. regards, johnny

What is meant by one scan actually? sorry just new on plc, basically I can make program out of it similar to relays, so I am just starting to learn other functions. Is that the reason why in the first circuit Y0 did not turn on? regards, johnny

First, this is the part of the program that i wrote: ----lX1l----------[ PLS M0 ] ----lM0l----------[ Y0 ] But when I run the program Y0 did not turn ON. Then I modify it with this next circuit: ----lX1l----------[ PLS M0 ] ----lM0l----------[ SET Y0 ] with this Y0 turns ON. I aslo included another PLS and RST instruction on the next line to turn Y0 off. Is it really necessary to incorporate SET and RST command everytime we use Pulse instruction to achieve output? regards, johnny

Hi thanks guys for the replies! I knew it that my mistake was the NC contact that I wired on X1, it's because there is an initial signal coming from it tha reverses the logic on the ladder right? Thanks, johnny

the wiring on the input goes like this: PLC Input: com-----PB(NO)------X0 com-----PB(NC)------X1 and on the output goes like this: PLC Output: +V-------RELAY----(com0-Y0)--------V- com0 and Y0 terminals acts like a NO swicth. regards, johnny

Hi just learning plc and I made this simple program from medoc: x0 x1 --l l---l/l---------------(m0) m0 l --l l-l m0 --l l---------------------(yo) after doing so I save it and transfered it to the plc, after transfering, I started doing the wiring and after that I push ON the button for X0 and there is no output at all. I check the wiring it all seems correct. Did I miss something? johnny

hi guys, thanks for your time and knowledge. johnny

I am just in the beginner level on PLC and I am using FX plc and I am using the manuals from this site, somehow I think those manuals are for pro's who already have a deeper knowledge. When I read the instruction about the trailing/falling and pulse output I don't fully understand them. So anybody can help? explain and give some examples? johnny

sergei, actually I am just making an experiment to see how the shift register works and I just saw that pattern of the ladder on the mitsu manual from this site. Base from what I have read shift register theoretically they have a signal for data and clock pulse. So I am asking with the circuit I had wrote before which of those represents the data and clock, is it X11 or X0? and what does the other part of the circuit represents because I am confused? Thanks REgards, johnny

Can anybody help me, just learning plc then I read about shift register, so I tried making a ladder on medoc this is the only thing that I made and I don't know what's next X11 --l l----------[sFTL X0 M0 K14 K4] So anybody can help me and explain further or give some examples?