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Hi All, I have problem about programming serial module Mitsubishi PLC using QJ71C24N. If I unconnect the cable from the module and connect again it show SIO error and the communication become lost or not sending data again. so i have to restart the PLC to make it normal again. Any other solution for solve this error without restart the PLC? Thanks Husanto

Hi, In my project, im tring to send a command from the hmi to the plc, truew the cable RS232 using the foloing conections: NT3S PLC 2 -----3 3------2 5------9 _4 |_5 But i dont know how the cp1l will read the comand sent by the HMI, i tried to use the HELP in the CX-PROGRAMMER but i stil didnt understand how they communicate. I already know that they communicate using the memory DM, and that the HMI works with ASCII communicacion.

Hello guys, actually I am new to this Omron PLC. but i have small project to transmit a command to the GSM modem via the RS232 port so it can trigger the modem to send text msg. Can you show me the steps/guide/sample program to accomplish this program coding? I already read some topic in this forum regarding to this PLC RS232 port but still cant get the ideas when to create the ladder program. PLC Type : CJ1H (CPU65H) - RS232 port First input to trigger the GSM send text msg: AT+CMGS="+YOUR HP NUMBER" Second input to trigger GSM send text msg: YOUR TEXT MSG CONTAINS (Ctrl+z to send) Many Thanks, AlexB

File Name: ModbusRTUdemos.zip File Submitter: RussB File Submitted: 17 Nov 2014 File Category: PLC Sample Code There are two Proficy ME projects in the zip file one for VersaMax and one setup for 90-30 CPU364 but is the same for all of the 90-30 processors, but read the Manual GFK-2220 to get the correct port information for your CPU and configuration. They are both working and well documented. They were done quite a while ago but I do not recall what version of PME is needed to open them. It is my recommendation that we all use the latest version. Good luck and have fun with it. R~ <))>( Click here to download this file

Hello all, I am trying to connect a barcode scanner to my plc using a 232C in the serial1. The scanner is a motorolla ls3578 fz, with the following parameters: Transmit code ID: yes Data Transmission format: Data/suffix Suffix: CR(1013) Baud rate: 9600 Parity: none Hard/software handshacking: none Stop bit select: 1 Ascii format: 8 bit RTS Line state: high Prefix: none In order to send data form the scanner to the plc, I use the RXD function block with the following parameters: First receive word: D300 Control word: 0100(hex) Number of bytes: &10 All the communication settings of the PLC are the same that the scanner ones. PROBLEMS 1)When I scan something the scanner beeps as if a transmission error occurs, and the data is ignored. 2)The A392.14 never comes ON and. POSIBLE SOLUTIONS Type of barcode: Now I am using a Code39 barcode. Is it OK? How can I implement the suffix? I have a software that allows me create new barcodes, but I don’t know what kind of data do I need. With 1234567891013 the 1st problem occurs. With 123456789 nothing happens. Communication settings: maybe my communication settings are not well defined. I attach you the file and maybe someone find out an error. Thank you up front! rxd.cxp