pfort

Do you have a PLC anyway on that project or do you plan to use it only for this?

My advice would be to use a thermocouple and a temperature controler. There is no analog input on CP1L. NTC, as far as i know, are not very good for that application.

2 programs. PLC and HMI

You got what you asked... unless brief was not what you meant?

The first thing i would check is if there was not battery leak on the communication card. (the card that have the DB9 and peripheral connector)

In the menu : PLC / Program check options

Is that program actually working in that PLC?

Finally did it uploaded the program? 2 or 3 things you need to know: CPM1 does not support function block CPM1 does not support expansion instructions Do no expect to upload the symbols and comments, you will get only the ladder and adresses.

1SVR550800R9300 It is for PTC it would not do the job for NTC

No it is a relay that close or open a contact when resistance of a thermistor (PTC) go above a treshold. Not an analog signal. If you need a proportionnal signal that is not good for you. This afternoon i worked with a temperature controler that can handle PTC (positive), and it have an analog output, but i dont think it is good for NTC. (negative) It was a GEFRAN 800 temp controler model. If you still want to know about this ABB relay, let me know and when i will be back to work tomorrow i will find that number.

I think NTC is a thermistor. Usually we find it on motor wirings to detect an overheating, and they must be connected to a special relay (ABB have it) or on a drive input dedicated to it. What is the application?

This instruction is not available in all PLC. In some PLC it is available but has to be mapped in expansion instructions. ( CPM2...) I never use that instruction, i dont like the idea of taking an instruction that need 5 Words to work when you could do the same with a 1 sec pulse and a simple counter or a increment or decrement instruction with only 1 word.

Hi Christian, The answer is yes, you could use an always On bit in the PT memory.

Bonjour niko, From what i understand of your question, (not sure i understand well, i dont have perfect english too) i have a suggestion: I suggest that, instead of working with a CNT, you increment a "D" word. Then use that register as pointer to others "D" where are stored your values. You then acces to them with indirect adressing.

I saw a couple of times defective peripheral port on CQM1 because of the battery that has leak

You still need DIFU and DIFD instruction and that bit with CXP if you are programming older PLC. (CQM1, C200H, CPM2, etc.) The reason why Syswin dont allow to make the rising edge on the contact is that Syswin is not compatible with newer generation of PLC that allow it.

Hi PDL, I think there is a misunderstud here...or is it me?... If i read the first post of this topic, he want the opposite of it...he want to update HMI clock with PLC time...

I dont know NQ HMI, but if it is only for displaying the time that you want the clock and dont need event or alarm log, you could write it to some DM's with the PLC then display it on the NQ and forget about the built-in RTC.

I runned "auto-update" and that issue disappeared.

Running CXP 8.10 and waiting for CXOne upgrade. PLC in this project is CPM2C. I need to download Expansion Instr., but before i have to download settings only and reboot because the actual setting for Expansion Instructions in the PLC is "Default" so i can not download Exp. instruction before this setting is changed in the PLC. As the topic description say, i can not uncheck options for downloading. Never had this problem before. Am i missing something? I tried with another project (CP1L) and have the same issue.

Do anyone has the pinout for the mini-peripheral port on Omron PLC? (In that case its a CPM2C) I already have a cable with that connector but at the other end i need to make a custom cable to communicate with a non-Omron HMI. I was sure i saw a topic on it here before, but i cant find it now.

OK i looked harder... in the connector himself... There is what it look like facing the male connector. mini_periph.bmp

Yes i already saw this page with your previous reply. Thank you mister Anthony! What i didnt found there was the allocation of the 10 pins in the connector. I mean where is pin 1 etc.

Thx. Nothing there show me the pinout of that mini-peripheral connector. I think i will buy a CS1W-CN118 adapter and dont anymore care about making my custom cable.

Yes i agree, APR is very usefull when you want to replace something like y=ax²+bx+c equation with multi-segments approximation, but keep thing simple with SCL or SCL2 for a "y=mx+b" single segment.