satheesh k gannoju

Hi I am using diffrent ROCKWELL PLCs as mentioned Below: ML100 ML1500 1769-L31 1756-L55M23 I want to know, 1)when this PLCs came in to market? 2) is This PLCs working with any RTOS apart from the Firmware? 3)For what application Control Logix is meant for, since compare to Compact Logix PLC is high processing speed compare to controlLogix? Thanx in advance Satheesh.G

Hi, I used Codesys but with ABB PLC's, but when i saw the screenshots, i think i can explain some what which will help to u. u can try with following options as i tried previously. 1)when ever setting the communication in PLC configuration -Interfaces--> COM settings -->RTS control to TELEGRAM from NONE. From online also change Motorola Byte order to YES and check, and also FLow control to YES/NO 2) ur showing a screenshot for version error ---> I think it wont stop u from communicating with PLC , i am also getting sanme error when ever i am opening a project. Try with this.

Hi Thanx for ur reply, 1) System Scan time includes IO Update time, logic execution time, Diagnosis time but i need only logic execution time. RTC will give resolution with seconds but execution of logic takes milliseconds or 100's of microseconds so with using RTC i wont get propr execution time , thats why i am looking for any parameter or internal timer which runs with microsecond resoltion or near to that resolution .

Hi, I am Using mitsubishi FX1N,FX3U,Q12hCPU, ANASCPUS30 PLC's. In my application building i need execution time taking to run user program. i Have GX Developer 8.24A and GXIEC Developer 7.01. Can Any One help me in the following issues? 1) Can we get current system time in Microseconds for above PLC's? Is any system parameter is available to get current time in PLC? 2) I am not getting how to use Structure Text with GX developer to use high speed timer? can any one provide sample code? 3) i am building same application for same plc by using GX developer and GXIEC Developer but Program running with GX IEC is not running even it's showing as downloaded successfully? i am not getting what is the wrong in settings or somewhere else? Can any one help to solve this problems? Thanks Satheesh.G

HI i am using Micrologix 1500 LRP 1764 28BXB. i want to know what is the exexcution time taken by this PLC when my program is downloaded and running. can any one help how to get that time? Scantimes is given when u go through Processor Status but that time is multiple of 100 or what? i want to use timer can any one help how to start and stop timer and get time difference in Accumulator ? Pleas can anyone help in this issue? Thanks & Regards Satheesh.G