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Showing results for tags 'rs232 to rs485'.
Found 126 results
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Hi guys, I'm trying to communicate with a scale controller (Rice Lake ACT20-AN) to read gross weight. Scale controller: RS485, ASCII bidirectional protocol, Baud 9600, Address 1, Delay 0, Parity None, Stop 1 PLC: Channel 1, Data Bit 7 (unclear if it should be 7/8), Parity None, Stop 1, Sum check code Exist, 9600bps, Non procedural protocol (should this be bidirectional?), Station number 2 (should this be different than scale?) I am using $Movp "$01t75CR" D6050, Movp K1 D6000, Movp K4 D6002, G.Output U8 D6000 D6050 M7000 which seems to work okay since M7001 does not turn on? I do not get any data, however, when running Movp K1 D6100, Movp k7 D6102, G.Input U8 D6100 D6150 M7100 at the same time as the G.Output instruction. I have attached the PLC program. Also, for wiring I wired the RS485+ to SDB and RDB, then RS485- to SDA and RDA as suggested by the scale controller manual. I then grounded the cable shielding along with SG and both FG connections. Any help would be appreciated in figuring this out, thank you! Scale_111219.gxw
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Trouble with getting online and uploading program from Compactlogix L31
darwil93 posted a topic in Allen Bradley / Rockwell Automation
I'm wanting to get upload the program from a CompactLogix L31 Controller. I'm using a generic (non Allen Bradley) "C2G brand" usb -->rs232 cable coming directly off of my laptop because I don't have a serial port out. The rs232 side of the C2G cable is a "pin out" or male end, and as you can see in the picture, the serial port at Channel 1 on the controller is also male. I'm using a generic (non-Allen Bradley) null modem (female-->female) cable to complete the connection. Ultimately, I'm not seeing the controller on linx. But that's a result of me not being able to configure the driver. When I try to auto configure this driver, Linx gives me an error saying, "Unable to verify settings due to a NAK!" btw, the rs232 cable going into channel 0 is for the HMI on the machine. A pv600 1. How do I get online and upload the program from the controller? 2. What does NAK mean? -
Hi, I have a problem with modbus communication. I set everything as shown in the pictures and I get a error 04. What is wrong ? program.bmp ustawienia.bmp
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Greetings, My application is utilizing two Omron CP1L PLCs connected through an RS232 serial link to achieve PC Link. We're essentially using this setup to message data between the two PLCs. With a hard-wired link, it works great. I can force bits in the master PLC, and see them in the slave PLC. However our application requires this link to be wireless. We got our hands on two SENA Parani SD1000 units. I've worked with these units previously to connect a serial scanner to a Rockwell PLC quite successfully. After reading through datasheets, we figured out the pin-out from Serial Comms unit fitted to the CP1Ls wasn't quite standard. So we adapted our own cables to re-route VCC and SG appropriately. So with a hard-wired link, this setup works, and the comms units on the PLCs have a nice solid lit up comms light. But with the wireless parani connection, the comms light lights up, but it is very dull compared to the wired link, and we get no data transfer. I've verified to the best of my understanding that the comm settings all match, at 9600 Baud, 8 data bits, 1 stop bit, and Even parity. Just curious if anyone has any suggestions to get this working, or if there are any settings that I might have missed that make PC Link a unique form of RS232 that these parani units can't handle? I've identified online alternative units known as the Promi SD205-OA, which has a pin-out to match the OMRON CP1L PLCs. As far as I can tell though, the units themselves function the same as the Parani SD1000 besides this pin out. Anyone know differently? Presently the serial connections made are Tx -> Rx, Rx -> Tx, Vcc -> Vcc, and SG -> SG. Would I require anymore connections? Our wired link seems to work just fine with just those connections. Any help would be greatly Appreciated!!
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Dear All. i'm a new user for Janitza. and i have issue related to RS485 actually, not to Janitza itself. i have one device (UMG 96RM), where there is only RS485 (2 pin only), no RS232, no USB, No Ethernet port. i'm trying simply to connect the device to the PC, via (USB to RS485) convertor, but i'm not able to do it. for me, this is the first time i'm see (RS485 2 Pins), usually there is Ground signal also. anyway, could you please somebody help how to connect? shall i add a pull up & pull down resistors at the device? and what is the power supply i must use? noting that, i tried many things, but still nothing happened. Appreciate if somebody can help Best regards.
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Hi I'm trying to figure out how to use the OP320-A to control the relays on the FX1N-20MR. I have mastered the OP edit tool, but I havn't learnt how to use GX Developer. The FX3U and op320 by 485 setting youtube is a good start. Does anyone have a GX Developer project file available. Is there an OP320 and FX1N or similar that comes together, pre-programmed, ready to use. I know how to write C++ programs to send RS485 commands, but this GX developer looks complicated. many thanks Tim
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Dear Expert, i'm issue to do communication CP1E with PC via RS232. im try to use plc for sending information and receive by hyperterminal pc. after googling some information there have multiway to success. by the way until now cannot settle. please expert share completed setup that's work: 1. communication cable from PLC - PC (my information use pin (2,3,9 jumper 4&5) - (2,3,5 jumper 7&8) 2. sample program that works (im using TXD & RXD with memory D1000 to keep data) 3. connection cable to PC using MOXA Serial to USB converter. 4. plc serial setting (default: 9600,7,N,1,Host link) my target to give instruction to printer to start print. printer need ACSII code. if this communication success i'm will convert all data to ACSII by ACSII convert function. thanks,
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Hi everyone, I'm trying to connect a computer to a SLC 5/04 via the RS232 interface without success. The same module has been running and connecting/programming via the round DH+ connector just fine. So when I start it up now, I can put it into run mode, DH+ LED blinking. The problem is I can't establish the RS232 connection, first time ever I work with a PLC... I've used two different computers with RSLinx and RSLogix500 installed, one with a proper COM port, one with a USB adapter. When I define a new driver in RSLinx the Auto-Configure gives the error message in the attached picture. I'm using a standard COM port cable plus a F/F gender switcher. Both checked with a multimeter, no twisting or switching of contacts going on. One problem is I don't even know if the RS232 LED is supposed to be active as soon the cable connects the PLC and the computer, or only if there is an active data transfer. So I don't know if the actual connection is at fault, or if I'm doing something wrong in the software. Any tip would be greatly appreciated! Volker
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Hello everyone, I need help for the titled matter. The problem is that i am using CX programmer v 6.1 trial version 30 days. The error i am getting is PLC failed to connect. so the cable in attachment is right one? It is CN226 USB to Peripheral port cable. DIP switches are all off. Should in set them in on off state? if yes so whats the sequence? Replies will be highly appreciated Thanks
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Can Mitsubishi FX3GA-60MT PLC be used as Modbus RS485 Slave? Any sample code or documentation would be very helpful. I am planning to communicate to Weintek HMI (Modbus RS485 master) to FX3GA-60MT PLC (Modbus RS485 Slave). Any other ideas would be nice. Thanks
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Hallo, i want to connect Omron PLC CP1E use CP1W-CIF11 to AD4329A with RS485 communication. my wiring is CP1w-CIF11 AD4329A SDA- SDA & RDA SDB- SDB & RDB and until now, i cant get data from AD4329A. Do you have any clue for this project? Thank you Riandanu PLC to 4329A coba.cxp ad4329aex.pdf
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Hi all, I have a micrologix 1400 plc and an SIC E10 engraving machine. the engraver requires its marking info ( day/year/random sequential number etc) to be sent to it via rs232 connection. the manuals have nearly melted my brain and I have no clue how to convert and send this type of info via rs232. please help. thanks NOTPROTOE10V6US-R04.pdf
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Communication L35E Ethernet and RS232
wrager69 posted a topic in Allen Bradley / Rockwell Automation
I was wondering if I can use the ethernet and the rs232 interface at the same time with two different devices. A computer with RSLinx on the ethernet and and Arduino RS232 on the RS232 with DF1? -
Hi, I write app to smartphone to communication omron CJ1m and Android. I want to connect devices by standard bluetooth. I plug in bluetooth adapter directly to omron RS232. I want to ask you, how i can connect by FINS command. Bluetooth device baud rate is set 9600. If i connect to omron, i sent code: "AC01" and i sent how long as omron return me "AC01" ?? And what's next command i sent? If I want read CIO 10 i sent: "0101B000000A" ? and FCS and "*" ?? how i calculate FSC? Is it XOR my data sent?
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We are upgrading our A900 GOTs (finally) and I'm looking into updating our key switches to rfid readers. Does anyone know of a good rs232 rfid reader to pair with a GS2107 GOT Simple? Also if anyone has had luck with scripting for security levels and could post a sample (be it GOT1000/2000) it would be awesome sauce.
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Hi Friends, In My new project I have used two Delta PLC'S (DVP-60ES2 and DVP 14SS2) I want to communicate both through RS 485 Communication protocol.We have tried communication trough manual help.But Master Slave device not communicating.We have checked for any error code in D1130 but it always showning "K0" value.here with I have attached screen shots and complete program for yours kind reference.Kindly help and guide us to communicate. Master.pdf RS485 master trail 1.dvp Rs485 trail 1 slave.dvp Slave.pdf
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HELLO, i want to ask. Can HMI connect to Non PLC device(example: zebra printer,Barcode Scanner or Weighing scale) using rs232 ? if can, can you suggest me what type of HMI that can connect to Non PLC device Using rs232 communication? thank you, have a nice day....
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OMRON CP1E communication with ESP8266/Arduino/PC Terminal using Serial RS232C OR USB
Chinmaygarg posted a topic in CX-One
I have OMRON CP1E PLC and I want to read memory address of PLC via serial communication. I want to use ESP8266 OR ARDIUNO OR PC Hyperterminal Please help me in any direction. How I should proceed? -
Hi I'm beginner from plc programing, I need to sent data (D0000-D0010) to PC through Host link mode . i just sent data from PC to PLC with command serial port is work only like below PLC_Serial.println("@00SC0252*");//sent to monitoring mode PLC_Serial.println(CalcFCS("@00KSHR 004500"));//set H45.00 to hight PLC_Serial.println("@00SC0352*")//sent to run mode but PLC to PC i don't know how to do . Could you advise me ? Thank you.
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Modbus addressing in Weintek HMI to poll data from Temperature sensor through RS485. In my system i have connected Temperature sensor to I/O Scanner has output in terms of RS-485 which directly connected to COM3 Port pin. No. 6 (as Negative) & 9 (as Positive) of HMI (Model No: MT8071iE) and HMI connected to PC via ETHERNET. I want to read temp on HMI screen via MODBUS protocol. So, can you please provide me instruction about addressing of MODBUS register in Easy-Builder Software so can read data of corresponding register. Because when i do compile i got an error like " Device no Response". I hope i will get reply from your side as Fast as possible to overcome this problem. Thank you.
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Any one have any experience to due with Parity Error when RS485 input can't get? Below is the circuit trace i get. It shown me that Parity Error when input signal from my device. But some of the time I can get the input message completely. Sometime can't. Is there any way to solve it?
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Hello, i'm newbie for plc. i want to ask about PC/computer send data to PLC CP1E with serial communication (RS232). my wiring cable is: PC PLC 2 2 3 3 5 9 4&6 7&8 4&5 and if i send data from PC to PLC, my indicator in COMM is blinking. i think the cable have no problem. but if i send data from PC to PLC, the memory is not same as what i send and whatever i send data, the memory didn't change. i will attach my ladder diagram. what should i do? New folder.rar
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i am new in plc programming . i know the basics difference between the rs232, rs422, rs485. but i am little bit confused in it. so i have the following question regarding these terms. 1. can these protocols communicate with each other i mean rs232 can communicate with rs422 or rs485 and same. 2. my plc has port rs422 but i can connect it with my laptop serial port which is rs232 ? 3. what are the main important points that kept in mind during communication or cross communications. any help will be greatly appreciated.
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Halo, my name is Riandanu, I connect PLC Omron CP1E to weighing scale, and its done. i think i dont have problem between PLC and weighing scale. And i want to ask about, how to compare value from weighing scale ? example : from the picture you can see value of weighing scale is " ST,+00160.66 g", and i want to compare it with 180 or 150 to give output on to lamp. Thankyou Riandanu PLC to ek-i.cxp
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For the Dematic PTL (Push To Light) systems, does anyone have any information on the protocol used. I'm assuming it's RS-485 based since the buttons use MAX1487 drivers. What I'm looking for is if anyone has a starting place to look at the handshaking or messaging.
