dsc

Hi Guys! I m testing S5 CPU 922 (6ES5 922-3UA11) with a simple carwash program from Step5 example, i test the program with S5-115U system before and it works fine. But when i load into this S5 135/155U cpu and make the cpu to Run, the Stop LED blinking slowly indicating that my program have errors. I have configured DB1 to be match with my IO card but not sure it is correct or not. I am using one input card 6ES5 430-4UA12 and one output card 6ES5 441-4UA13. Attached is the program and also pictures of my PLC. (i have also set the dip switch on the IO card). Anyone can give me hint? dsc S5.zip

Dear Dekor, Sorry to kepp u waiting becoz i am out of the office for few days and cant continue with the testing. I done the things u remind me to connect power to input and output cards. Now it works, my cpu can go to Run mode already! Thank u.

Slot 3 only can be use with IM360 card. Why not u change that 16 DI to 32 DI card and can save one slot. If not then need to extent another rack by using IM360.

Hi Guys, I look into the ISTACK, as an attached image, yes it mention about the DB1 error. I still cant figure out what is the problem. It says 'DB1 missing or incorrect addr list at cold restart, BYTE Nr.7'. I believe Byte Nr.7 is the line number inside DB1 which having problem. Note that i give a single phase supply to the power supply rack. I also attach again the modified PLC program. To Jesper, here in Malaysia, still a lot of customer using S5 PLC and they still unwilling to convert it maybe in term of budget. dsc S5.zip

Thanks to both of u, i also found another manual as attached. dsc S5_135U_155U_CPU_928_CPU_928B_CPU_948.pdf

Dear All, Did anybody have Step5 STL instruction list with it description? dsc

Ok, but i must say firstly i didn't use all of those memory map, only partially, so i share some of my study found. There might be others which is not correct too. The document you gave is almost complete on the memory mapping which reg 0 = control and reg 1 = frequency reference for o2-9 = 2. But the bit configuration is wrong on reg 0: In your document Register 0000h (R/W): Bit 0 0=STOP 1=RUN forward Bit 1 0=FWD 1=REV Bit 2 External input 1 Bit 3 External input 2 Bit 4 External input 3 Bit 5 External input 4 Bit 6 External input 5 Bit 7 External input 6 Correct one should be: Bit 0 Run Forward Bit 1 Run Reverse Bit 2 External Fault Bit 3 Fault Reset Bit 4 ComNet Bit 5 ComCtrl Bit 6 Digital input 3 Bit 7 DIgital input 4 Bit 8 DIgital input 5 Bit 9 DIgital input 6 Bit 10 DIgital input 7 Bit 11-15 Not use

Thankyou, this one is not 100% correct, but combining information with others drive communication, i already got the correct mapping. Thanks again.

As i told in my first post, i only manage to google for old revision manual of this drive (I516-E1-03) which doesn't have any communication. I believe all modbus is the same, now the issue is memory location mapping which is differ.

Thank for your help but unfortunately, its communication setting o2-o9 = 2 (europe spec). So the memory mapping descriped in your manual doesn't fit. Any idea to deal with those 3G3FV with setting o2-9 = 2.

OK Aggattapauer, It's all clear now, thanks for the info. dsc

Dear Fellows, Any idea how can i reset off delay timer in PL7 Pro? regards dsc

Dear aggattapauer, Yes i wan to make the timer to Zero in case of Emergency Stop. But i still not clear with the EN bit. Or i can move 'Zero' value to TM.P of the timer.? Sorry that i dun hav a cpu here with me that i can test it out. Need to modify customer old machine and this is my first time with Modicon PLC. dsc

Dear All, I have upload this plc TSX Micro using PL7 ver4.5. The ladders which i upload contains 'symbol' for each Input and Output and also for each rung comment. But for the Internal bits, M cant see any symbol for it. Is it suppose to be like this? Thanks dsc

Dear All, I have here 4..20mA input and depend on this input, i need to generate from minimum 2 to 200 pulses per minute. It something like a PWM output i think. With input 0f 20mA then i need to generate 200 pulses/min. Do Omron have standard block for this application? dsc

Is there any program sample for S7 - 200 TODR and TODW instruction where I can use this time and date value to start some seq.I need to start and stop the seq after certain time period. Will the real time value continue to run even after the power to PLC is switch off.

Change (Force) your PC ethernet connection speed to 10Mbps, you will get a very good connection quality.

As we know s7-300 MPI is actually RS485 with much higher baud rate, in this case if we drop its baud rate down to 19.2K, then we can monitor its communication signal using Rs485 to RS232 converter, right? Now i have simple IPC application which need to read/write some value from s7-300 PLC, my IPC already have RS485 port build in. I am thinking is that possible i just use that RS485 port to communicate with MPI (using 19.2K baud rate) without using any adapter? (i can use USB/MPI adepter to set the baudrate drop to 19.2K first) Anyone have experiences on this? any ready-made windows driver for that? Thankyou.

The software package you suggest is alot more expensive than the MPI adepter itself, i would rather use Libnodave which is free and able to do the same things via ethernet. Anyway I already found the MPI protocal in some china industrial forum and will try that out soon.

MPI adapter is not cheap, if i could use buildin RS485 port, i would prefer to do so. I used to monitor profibus signal (with 19.2K baud rate) using RS485 to RS232 converter also, i know it is possible, we just have to know the protocal or have the right driver for it.

Thanks Jesper and Toqadude. regards dsc

Dear Fellows, I have problem before at site, the profibus module at last node is faulty and causing several nodes at front also faulty. The job is quite severe which i have to trace one by one station until i found out that the last node is faulty. Does anyone have any method or tools, because right now i just depend on Hardware Diagnostic on S7 to identify which profibus nodes are missing. Thanks a lot. regards dsc

Hi guys, I try proface touch screen comm with cpu S7 315 2DP MPI port and before that i online with cpu via ethernet cp343 module. The moment when i plug in comm cable for proface to MPI port, i cannot online with cpu anymore. it just stop. Meant i cannot online if the proface comm cable is plugged in. But the communication between cpu and proface is established. i can trigger some bits and display value at proface. Anybody have experience with it? regards dsc

Hi Guys, I have this old coros op 5 and i heard about this COMTEXT old software. Anybody know where i can get it? i asked siemen before but still no reply. dsc

Hi, Does the cp 343-1 ethernet communication need to be reset after sometimes?? The skada system on my ipc unable to function it hang ???Can it be the communication over flow in the ethernet???? Thank you in advance From DSC