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Showing results for tags 'rs232 to rs485'.
Found 126 results
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hello, i want to connect CP1E to EK300i (weighing scale) with RS232 communication. i attach file of datasheet ek300i, wiring CP1E to ek300i and my cx programmer. if i push send data on ek300i, com LED indicator in CP1E is on. and i dont know why my cx programmer can't change data of memory with data from ek300i? what should i do? ek300i.pdf CP1E to EK300i rs232 communication (belum dicoba).cxp CP1E to EK300i rs232 communication (belum dicoba).opt wiring rs232 ek300i to CP1E (belum dicoba).txt
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Can I write modbus rtu over RS-232 interface of the CPU module Q01UCPU
JohnStudio posted a topic in Mitsubishi
Hi, First as i know we can communication in MODBUS RTU as summary below 1.FX series, FX3U-485ADP-MB + ADPRW instruction 2.Q series, QJ71C24 <Serial interface module>+ Pre-defined protocol 3.Q series, QJ71MB91<Modbus interface module Three thing upper, i think it will ok The question is 1> FX series, Cloud we use < Serial communication only not Modbus adapter> + RS instruction to do Modbus and How to do that. 2>Can I write modbus rtu over RS-232 interface of the CPU module Q01UCPU and how -
Hello Everyone I have a problem to connect FX5U with Inverter Mitsubishi D700. ( no respond from inverter) . I did read and following the manual. Could any one can help me?
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Hello, PLC: NX1P Comm module: NX-CIF105 I am running a serial (RS485) network to control several motors. As a trigger for to read the serial port I am using the ( Ch1 Receive Data Exist) bit, which is an internal bit that's ideally should be energized when there's data in the Receive buffer. However, this bit isn't reliable at all. I am reaching out today to figure out if there's another way to trigger the receive command ( preferably without a delay) thank you all Cheers!
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I recently purchased the SIEMENS CONNECTION KIT (6ES6400-1PC00-0AA0) with its corresponding serial cable to connect to a MICROMASTER 440. I connect my RS232-USB cable to the serial cable. But I can not connect in any way! What do I do wrong? 1. In the micromaster 440 I put the following USS configuration parameters (USS = serial communication): p2010 = 6 p2011 = 0 p2012 = 2 p2013 = 127 2. I put the DIP of the Connection Kit (Ref. 6ES6400-1PC00-0AA0) 1 ON, 2 OFF, as indicated in the manual. I connect the connection kit module with its serial cable to my RS232-USB cable. And I connect the USB to my PC. 3. Open "Set PG / PC interface" and select PC COM-Port.USS.1 4. I go to the properties and I am selected COM1 without problems. 5. But I do the transmission speed test and can not find anything. 6. Also in the diagnosis of PC COM-Port.USS.1 I do the test and can not find anything. Supposedly my RS232 cable is correct (I have tried several tests). And the configuration of the COM port in "device manager" also looks correct. What am I doing wrong?? Zhanks!
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Has anyone been able to set up back and forth communication with a device that uses SCPI? I have a D2-260 and 5 Kikusui power supplies. The PLC already utilizes a RS485 Modbus network and also has an Ethernet connection. The power supplies only have a RS232 connection and uses SCPI commands. I have searched the web over and there are Modbus to ASCII converters but how to make it where to catch the response in a register for the PLC to find? I am open to anything, 5 small PLCs to there is no possible means to do this. Any direction would greatly be appreciated!
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Mitsubishi FX5U Serial RS485 - non procedural communication
CrustyBurger posted a topic in Mitsubishi
Hello, I have managed to send output to a terminal using a serial channel. I have not been able to send data from the terminal to the Mitsubishi PLC. I am not using terminating resistors but I have a slow baud rate of 4800. I am just using regular wires (1.5mm square) . I think the hardware is okay as I can see the output from the PLC on the screen. Attached is the code. I just send from the terminal the character 22 every second, I hope this is not too incomplete to get some help. The plan I guess later is to interface with LabVIEW probably using Modbus but I need to try to get this working first. UL9.gx3 -
Hello I need to sent data between PLC CP1L-M30 and Hyberterminal with serial port (RS232C port 1) ,but there isn't data show up . something is wrong? Could you advise me? my ladder as below
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Morning Guys, For my latest project I need to read a gas sensor via 485 from a Momentum PLC. I've been through the help files, but they seem to only raise more questions than they answer, they only seem to reference PLC -> PLC comms. I've had a play with the 'MBP_MSTR' & 'OUT_IN_MBUS' function blocks, but i can't seem to get anywhere, Has anyone got any examples of reading in data via 485, or can anyone lead me in the right direction?
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My issue is trying to receive data from a Datalogic PM9500 barcode scanner onto a Siemens ET200S (IM151-8 PN/DP) CPU using a serial interface card (6ES7 131-4BD01-0AB0) with the ASCII Protocol. The software that I'm using to program the PLC is TIA Portal V14. I made use of the built-in function block S_RCV to try and receive the data into a data block that I have created. I connected the Datalogic's base charger unit directly into the PLC's SI module. (I cut the DB9 plug off) So, Pin 5 (RXD) of the SI module is connected to the Tx wire (Brown) of the scanner, the Tx is also connected, as well as the ground, to the SI module, however, I only require the Rx. There is no flow control. Upon scanning a barcode, the Rx LED on the SI card flashes, indicating that something was received. I have tested the scanner using a terminal program called "Hercules", and I am receiving what I should be when I scan something. The parameters such as Parity, Stop Bits, and Baud Rate, etc, of the scanner corresponds to that of the SI module as well. I paramatized the S_RCV block as follows: 1.) EN_R is always ON. 2.) R is defaulted to the instance DB that was created with the function block's tag. 3.) LADDR is set to "100" as that is the start address of my SI Module as defined in the device configuration. 4.) DB_NO is set to "2" as it is the number of the data block I created for storing the received data. 5.) DBB_NO is set to "0", which I understand to be the data blocks offset start point from where to start inputting the data. The rest of the NDR, ERROR, LEN, and STATUS outputs of the function block are also defaulted to the instance DB tags. I only want to see if I'm receiving the data from the barcode scanner into the datablock. I created an array of bytes and I also tried with characters from 0 to 30 to store the data. As I mentioned, the problem comes when I'm trying to scan something, the RX LED on the SI module pulses, but when I monitor for any changes in the Function Block, as well as for any changes in the Datablock itself, nothing happens at all. I don't know what If I'm missing something, this has been bugging me for some time now, I'm quite new to the whole programming scene, I would appreciate any help I could, get also I've attached the project file too. =) Yumi_Panel.zap14
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send only hex number via rs232 serial line 1 M241
saruans posted a topic in Modicon / Telemecanique / Schneider Electric
hello, Maybe somebody know how need send only hex numbers via rs232 in the external device? I tried to use SEND_RECV_MSG function block, but unsuccessful, because send ASCII code. Need send 16#AE number, but I don't have any idea how need do it. I am waiting your advice. -
Hey guys I don't have much experience in PLC serial communication and I'm tasked to integrate 6 OP-905 scales with our EATON based control system. The scales are rs485 asynchronous serial communication, my concern is that if the device is not designed to be an RTU then I cannot use modbus. And if that is the case how do I talk to multiple scales using the async protocol. Has anyone done this in a similar platform?
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I need some help with G.input and g.output commands. I have a Q04UDEHCPU and my slots are as follow: slot 0 - QJ61BT11N cclink slot 1 - QJ61BT11N cclink slot 2 - QJ71C24N-R4 2-channel RS4222/RS485 I need to have 2 separate RS485 stings going to different devices. I cannot find the way of setting up the g.output command. G.Output "Un" (s1) (s2) (d) "Un" says it is the start I/O signal of the module, but I am not sure what that means. What there be a different "Un" number for each channel?
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Hello everyone, I'm a beginner in RS485 communications and i want to control 2 inverter LS iG5A via RS485 from a PLC Mitsubishi FX2N I really don't understand how i should aproach and start this part of program in Ladder Diagram, to write and read parameters from Inverters. Please help me with an example Thanks.
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!! Need Some help with FX1N-232-BD connect HMI Panasonic GT Series
matcha125 posted a topic in Mitsubishi
Hello, Everyone . Do anyone has experience in FX1N-232-BD connect to GT11 (or other model) from Panasonic ? I try to connect them via RS232 port and I setup parameter following HMI manual but It doesn't work at all only RX led on 232-BD blinking Any suggestion ? Matcha IMG_39346964.MOV -
Can CX Supervisor be used as modbus RTU master using RS232/RS485 or USB/RS485 converter to connect it to PLC or panelmeter or other modbus slave units and how? Any example? Thanks in advance Goran
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Is it possible to communicate from a PC program to PLC program for reading inputs and setting outputs? How can it be made ? is it possible to do from TER connector or AUX connector , without special comm module?
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Hi all, I have a S7-1200 CPU 1214 DC DC DC and Cm 1241 6ES7241-1AH32-0XB0 communication module.I'm using TIA Portal 14 and i connected cpu but i couldn't connect cm 1241 communication module.When i looked diagnostic i saw" Diagnostics data are not available because the current online configuration data differ from the offline configuration data.".Then i looked for what was the difference.But i didn't see.Are there anyone can help me? Thank you
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Hello all i'm looking for some software to record a 100 plus channels maybe with an ascii string from a PLC? i want to be able to assign each channel with a unit and a range, flagging feature would be nice. - selecting the channels i want to view - auto start recording - save file and start new automatically -view and create reports preferably no additional hardware because of the amount of channels. this is to record an operators every move so in events of damage or plant failure we can quickly identify the problem (point the finger) many thanks dan
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Greetings everyone, I am using a VERY OLD laptop, Windows 98, the correct AB cable....and only used to download programs into equipment to restore in emergencies into AB 5/04. I was able to connect to SLC 5/04 using RSLinx (used Auto-Config, all worked correctly) , and wanted to install a program from earlier version using RSLogix500. It seemed to download correctly, the pop-up asked if I was sure I wanted to install new program, hit YES...then said it would change channel, pop up buttons were "ALLOW" or "DENY" (something like that). I hit "ALLOW". All seemed good until I plugged HMI back in....had a bunch of codes it didn't like, so I went to install back to original version. When I went through the same procedure (mentioned above)....5/04 and laptop no longer wanted to communicate. I assume it has something with allowing the channel change. As you can tell, I know Jack Squat...I'm not a programmer (duh), but was handed a computer with instructions....and now the machine is down. Any help with getting me in right direction is highly appreciated in advance. I searched the forum, and wasn't able to find a solution... I suppose it has to do with an in-experienced, well intending human messing with stuff he shouldn't be messing with !!
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Help Needed....GE Multilin EPM 5500P Power Meter Interfacing to GE Multilin EnerVista.
soms posted a topic in GE
Hello, I need to communicate Power meters ( GE Multilin EPM 5500P) to GE Multilin EnerVista Software. The present communication system uses Ethernet for communication from LAN Switch to Computer. There are a few existing Power Meters which need to be connected to the Network. The Meters having output ports as RS485. I need to use a convertor for that right. So when I contacted GE they told me to use GE Multilinet Serial to Ethernet Convertor. But due to the price and unavailability of the material I am thinking to use a universal convertor. Is that compatible for Multilin Devices?? and In Case of using a universal Convertor does we need any other drivers for that. Please Help Me.. Thanks In Advance mnetman-a3.pdf multinet (1).pdf PM-GE.pdf -
Hi to everyone, I have done an intense search on the web and this form, also went on to the download section here to try out a simple RS232 program, so far I can't get it work. Long story short, I am working on a PLC CP1E( w/ built in RS232) to communicate with the PC hyper-terminal . PC will send a string of messages to the PLC, then the PLC will convert the message to a pulse parameter, eg. computer will send ( 90, 40) to PLC, then the PLC will take the string 90 to pulses parameter( PLS2) and 40 will be the duration period. I am willing to learn and try out your sample program, let me know! THank you in advance.
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Hello , I'm using DVP12SE11R Delta PLC . I would like to read data from an external device using RS485 communication. In the WPLSOFT i have informed that i gotta use MODRD command in order to read the data . but i am not sure how to use it properly. the data is formed as one bit ('1' or '0') i wanna read 10 registers using MODRD although those registers are not ordered one after another and i know MODRD can read 6 registers one after another. Then i would like to use that bit as a Normally Open contact in the WPLSOFT and turn on a coil. i would like to get some help with it. thanks.
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Hello admin, Im new to PLC domain , i have one OMRON CP1E N30 with in built RS 232 port and ladder program to run in Homing and forward and reverse motion. I want to control the PLC from a computer using RS 232 communication. From what little i read from manual supplied for programming ,i came to know that there are two type of commands C mode as well as Fins commands. My doubt is whether these commands can read/write CIO memory addresses that are used to set and reset the motor enable/disable in ladder program through CX programmer software? for example: in my ladder program CIO memory address 30.00 is the motor enable/disable address so if i want to control externally from a PC to enable/disable the motor ,which commands should i use and is there a format to send these commands as well as the value. I am planning to build a GUI in Labview to cotrol the PLC via Serial RS 232 . How can i do it ? Thanks in advance.
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Hello I try to connect my load cell via RS232 serial port 2 to PLC (PC1L-EM) but it dose not work could you please let me know what is my mistake Thanks in advance Ebby Untitled.cxp
