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Showing results for tags 'modbus-rtu easy master function'.
Found 312 results
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I am using PLC Modicon M221, I want to make communication between PLC Modicon M221 to OPC Kepware by modbus tcp/ip ethernet. In PLC, I use software somachine basic, I set digital input and digital output. And in OPC Kepware my address 00001, but when I switch turn On/Off in PLC, value in OPC Kepware doesnt change. Could you please correct me? Thank you Bujang
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PID Function Block: Error: Variable does not have enough size
ArttuJ posted a topic in CX-Programmer
Hey, I recently started trying my hand at creating function blocks. At the moment I'm trying to create a PID function block, however I keep getting this error: "ERROR: Variable does not have enough size." No idea why it does this. Can anyone help? -
Hello! I am using S7-1200 PLC 1212C AC/DC with configured Modbus TCP Server. I can already read/write Inputs/Outputs (Coils) and Memory Words. However I'd like to read/write Memory BITS. Is it possible? If so, how? What addresses should I use in TIA portal? And which function codes on client side? Thanks in advance!
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Two FX3U-485ADP-MB One Modbus Master and Other as General Purpose Serial Port
ritz2610 posted a topic in Mitsubishi
Is it possible to use FX3U-485ADP-MB as a serial port to send and receive user defined string/data to and from a computer? I have a FX3U-32M PLC and two FX3U-485ADP-MB adapters. I have been using PLC with one adapter as Modbus Master. Now i want to use both adapters, where one will be Modbus Master as usual and the other I want to use to send and receive data to and from computer terminal (Example - Realterm). I have a third party 232/485 converter which works really well. Lets me just describe my requirement straight forward. I want to display process parameters on a windows computer based user interface (UI) and also set some variables in PLC from the same UI. The UI has access to serial ports of computer.- 3 replies
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- fx3u-485adp-mb
- fx3u
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I have a function block where the first internal variable is showing as address H1420 in the Global Symbol table. When I add another retained variable to the function block then save and compile the code, the variable address in the global symbol table shifts from H1420 to H1488. I need to retain the address as I will be downloading code and I need to ensure the address if H1420 stays with that variable. Can anyone help with this?
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hello everyone,, I use the QD03UDV PLC and the modbus QJ71MT91 module, I want to test the module using modbus poll but it fails continuously, and when I upload the program to the LED notification PLC "COM.ERR." the module is ON ... but in GX Works2 I have no errors .. why is it like that, can someone help me?
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Hello all. I posted earlier in the week regarding downloading new code to an Omron PLC, but I think the question was a bit vague. As a follow up, and hopefully to clarify, I have the following query. I have created an upgraded program which will be downloaded by field techs using memory cassettes. The revised area of code is essentially a Function Block which amends service lamp behaviour, and in creating it, I have amended the existing function block and added new Internal variables. Is there any way I can ensure that the new variables don''t over write or move the existing variables in the PLC, because this is what is happening when I download it. HELP!!!!!!!!!
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- omron
- function block
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Hello, I want to do communication between CJ2M-CPU35 and LS drives. I am new to Omron.I searched the manuals regarding protocol macro.but it's bit confusing for me.please send if anybody have the sample program and document so that I can do it.Please support. Also I need to communicate Citect SCADA with CJ2M-CPU35 on Ethernet, please send me the documents if you have. Thanks
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Is there any function for Mitsubishi PLC to perform as a Modbus Slave?
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hello. I've been trying to communicate this omron plc CP1L-EM30DT1-D, with a yaskawa inverter cimr-vu4a0004faa. but i can't figure out how to make de correct mov or configuration in de DM. i need to run/stop, change frequency. some help, please. :) 485PRUEBA.cxp 485PRUEBA.opt
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Hello. I have a communication problem between an L30ER and SM2 module. It gives me a message error 16#001e, extended err code: 16#0000_0002, Error Text :Embedded service resulted in error. I have a Lovato network analyzer connected to SM2 module via Modbus RTU, on channel 1. The setting in the MSG instruction are: Configuration:Service type - Custom, Message type - CIP generic, service code 4b, Class 33f, instance 0, attribute 0, Source CH1_REQ[0] - INT[10], CH1_RESP[0] - INT[10]; Communication: slot 4, port 2, channel 1, Connected - not checked. baud rate is 9600, DSI/RTU is 5, format 8-N-1. the channel led from the SM2 module is flashing. I read the value at a 2s. The rung is: XIO.TON.EN+TON.2s.EN+MSG.EN. The Cable betweenSM2 and Net.Anal is a CAT5, pins 4(A) and 5(B) Maybe someone has a clue.
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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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ML1400: Manipulate output through modbus/tcp
MikosMotta posted a topic in Allen Bradley / Rockwell Automation
Hello I have a scenario that's been bugging me for some time now. The scenario consists of a Micrologix 1400 that I need to control it's output from modbus/tcp. In detail what I really need is to be able to manipulate the O0:0 through modbus/tcp. The PLC would be the master and I would be the slave that triggers the connection to the master. I'm using a Modbus-Client on my PC and that should be the slave. Any idea as to how I can manage that? Currently I can send data to the master but everything is "stored" on B10 and I have no idea how I could write directly on O0. Thanks a bunch guys. PS: I'm borderline noob. -
communication between HMI GS series mitsubishi to inverter hitachi SJ700 series
diraemon posted a topic in Mitsubishi
hy everyone.. I want to communication inverter SJ700 to hmi mitsubishi GS2017 for read an code error in interface HMI? is it possible to communication between them?- 4 replies
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- communication
- hmi
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ModBus RTU communication between Omron CP1E (CP1W-CIF11) and an Arduino using MAX485 RS485 transceiver
José Silva posted a topic in CX-Programmer
Hello everyone! Briefly introduction, I would like to communicate and test the following hardwares: 1- Omron CP1E (using an Option Port CP1W-CIF11) ; and 2- Arduino Nano using MAX485 RS485 transceiver. The CP1E will operate in "Modbus-RTU simple master" as illustrated in image 01. The arduino will be in slave mode address 1 and the library used is "SimpleModbus NG" ( https://github.com/angeloc/simplemodbusng/tree/master/SimpleModbusSlave ). Taking the sample in official manual ( https://industrial.omron.eu/en/services-support/technical-tools/downloads#cp1e ) , pages 248-253 in the "CP1E CPU Unit Software User's Manual" (Image 04) describes a sample communication to an "Inverter Slave". I want to use the Arduino Slave as the Inverter Slave just to be sure that all previous steps are correct. Therefore, I would like to know: 1- As illustrated in Image 02, Am I missing any resistors? 2- Should I connect the GND to the FG? 3- In this scenario, the DIP switch setup should be as illustrated in image 03? Only DIP4 is OFF. 4- Can I test it just forcing A641.00 and checking the DM Area Data, as shown in Image 05? The code used in it is the following: // Wiring: Arduino and MAX485 // RX0 - RO // TX1 - DI // D2 - DE/RE #include "SimpleModbusSlave.h" enum { REGISTER_0, REGISTER_1, REGISTER_2, REGISTER_3, REGISTER_4, REGISTER_5, REGISTER_6, REGISTER_7, REGISTER_8, TOTAL_REGS_SIZE }; unsigned int holdingRegs[TOTAL_REGS_SIZE] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }; void setup() { modbus_configure(&Serial, 9600, SERIAL_8N1, 1, 2, TOTAL_REGS_SIZE, holdingRegs); } void loop() { modbus_update(); } Any answer can be helpful. Thank you for your time! Regards, Jose. -
I using easymodbus library to connect and read data from 3 PLCs CP1L but it run unstablely, sometime it disconnect and i cant re-connect PLC, it give error time out when i try to reconnect when it happen, i restart PLC and everything back to work. Someone please help me. I am new with modbus and omron
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Hi, I want to sent simply frame using FB mady by JPV from Omron France. It should send just frame 01030FA60002273C to slave #1 When I check Multiway - it seems that frame is OK, but slave no reply. I checked different soft to monitor serial port and frame looks different - some bytes are sent twice. I attached screenshot and you can see the difference - Can you explain why it happened. Both frame I got when I set W30.0 in PLC and I saw just one blink LED Hmm I also attached screenshot from my serail port configuration. I tried also diiferent set of CP1W-CIF11 dip switches, but the same effect. Any clue??? thanks in advance
- 3 replies
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- cj2m
- cp1w-cif11
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Hi Guys just a quick one before I begin thinking about a new project using MODBUS RTU i want to have a MODBUS network over RS485 consisting of a HMI (Master) FX3G (Slave1) and a remote IO unit (Slave2) obviously i I know the master can request information and send commands to slaves, but can Slave1 send outputs/commands to Slave2? Or can only the master communicates to each slave?
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Enable Analog Channel in RSLogix 500 // First Scan Bit, COP function?
James275 posted a topic in Allen Bradley / Rockwell Automation
Hello all. I have been working with an SLC 5/04 system, which houses various Digital and Analog INs and OUTs, up to Slot 29. I am currently mainly working with Slot 25, an Analog Input: 1746-NI16I. This is a system which has already been set up and has been running for the best part of 8-10 years. This particular card has had some spare inputs, one of which I am trying to connect to. In the Advanced Configuration, only a few Channels are actually "Enabled", and each channel is pretty much slightly different from another in terms of Input Type, Filter Frequency and Data Format. I am trying to set up Input 14, which is Channel 15, to "Enable" it, 4-20mA Input Type, Filter Frequency of 6 Hz and Data Format of either Raw/Proportional or Engineering Units. Now, after I have made my choices, I click apply, and then OK. I am then confronted by a pop-up which states: "Configuration Rung and Data Integer Data File Number: 25 Integer Data Element: 100 Rung to be inserted: XIC S2:1/15 COP #N25:100 #O0:25.0 24 At Program File Number: 4 82" I have the options of OK or Cancel. If I click OK, I now have LAD 4, Rung 82 Highlighted. This First Scan Bit and COP function were already here, but does that mean I have now altered what is being written to "#O:25.0"? I now Download the Changes. However, after all this, I am not getting any Analog input reading coming in from the Live PLC. What is this COP function? What does it do? How do I properly set up this Analog Card? Thanks for your time, -Jame- 5 replies
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- allen bradley
- analog
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I have a customer that has a LS Master K PLC, and he needs me to make some changes to the program. I am not the original program writer so I do not have the original program nor the password. And the company that originally made this program does not exist anymore. Does anyone have any suggestions on a software or a device that can help me either find the password or just bypass it. I need help ASAP Please!!!!! I saw there is a password breaker while i was googling, but the software cost $50, and it looked a little sketchy so I am kind of hesitant to trust 1 purchasing the software and 2 downloading it only my work laptop. Please help!!
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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- 2 replies
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- modbus
- mitsubishi
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Hi I have some problem about QJ71C24N with Modbus RTU Predefined Protocol. I have setting predefined protocol for QJ71C24N and use 485 wiring to modbus slave but when I start communication it returns CRC error then I use Circuit trace to check communication that result as in attachment that there are some echo back from send command mix with response command from slave device I think with these response cause crc error because there are some echo back in response data I have setting echo back to prohibit but result are same. How can I solve this problem?
- 3 replies
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- mitsubishi
- qj71c24n
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Did fx 3g485bd supports modbus communication. And if yes, by which instruction. I am using adprw.
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hi there is a 1215c and a fatek B1 plc here. 1215c as master and fatek as slave. i want to read 10 16bit words from Fatek to 1215c and i use Modbus rtu 485. i have a problem with what comes from Fatek To 1215C. thx 2018-08-25_11-56-16.mp4
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Modbus address register exchange between Melsec-Q series PLC and ME96SSHA-MB Power meter
RV3.0 posted a topic in Mitsubishi
Please assist me with the following; regarding the ME96SSHA-MB Power meter data transition with Melsec-Q series PLC; We acquire to read various values on dedicated Modbus storage address registers at the simultaneous into a Melsec-Q series PLC via Modbus (TCP or RTU) for calculation purposes. Naturally, since the reading of these variables are to provide accurate instantaneous results, it is a requirement that these values are to be read at one scan. However, as can be seen below, there is a gap in address register range – of which, if all of these are scanned simultaneously, yields an exception error when read. This error is only avoided by scanning these data sets separately – which is not ideal for our application – since accuracy in calculations is imperative.- 2 replies
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- melsec-q series plc
- me96ssha-mb
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