Posted 7 Jan 2016 (edited) Hi! I'm now in a project which collecting weighing data of 3 tanks to S7-1214C and transfering them to S7-314 2PN/DP through ethernet cable. My problem is it took me about 1 second to exchange data (about 13 bytes) between S7-1214C and S7-314 using PUT and GET. So the weighing data updated quite slow to S7-314. Is there any way to exchange data faster between S7-314 and S7-1214 ? For more information, I use clock memory 1Hz to trigger the REG parameter of FB PUT/GET. I couldn't set the lower cyclic time because the FB PUT/GETwould have error with status 25 (meaning the FB in progressing). Edited 8 Jan 2016 by anhtuandrg Share this post Link to post Share on other sites
Posted 7 Jan 2016 What firmware do you have ? Can you make the 1200 an idevice and get rid of get/put? 1 person likes this Share this post Link to post Share on other sites
Posted 8 Jan 2016 Thank you for ur reply jrw! The S7-300 is ver 3.3 and the S7-1200 is ver 4.1. Does idevice set by tick the option IO Device in Operating Mode of PLC properties. Is there any setting in I-device communication? Share this post Link to post Share on other sites
Posted 8 Jan 2016 Just click it. Then set up your I and Q data transfer Share this post Link to post Share on other sites
Posted 8 Jan 2016 Hi jrw! There one more thing I'm still confused. we don't need any program code to send or receive data, do we? we just move I or Q data to another register and do anything we want, right? Sorry, this is the first time I have a project about communication between 2 PLCs Share this post Link to post Share on other sites
Posted 8 Jan 2016 No code needed. Just read inputs and write to outputs. Easy and fast 1 person likes this Share this post Link to post Share on other sites
Posted 8 Jan 2016 Thank you jrw. I'm trying. I let know soon Share this post Link to post Share on other sites
Posted 11 Jan 2016 Thank you so much, guys. I did it Share this post Link to post Share on other sites
Posted 13 Jan 2016 (edited) Hi jrw, I did configure connection I-device between S7-314 and S7-1214. It works ok, but these are some problems: - Both PLC will error at the power-up: I connect 2 PLC on the same power-line. At the power-up, the S7-1214 flash the Led "ERROR" and the Led "RUN\STOP" is still GREEN, the message in Online and Diagnostics is IO-Device failure. In the S7-314, the Led "SF" turns to RED and PLC switches to stop. When I stop S7-314 and run it again, the connection will be normal. - If the connection is normal, then I unplug the ethernet cable, the above error will appear. - If the connection is normal, then I stop the S7-1214 then run again, this error will happen again. Can u give me some advice?? Edited 13 Jan 2016 by anhtuandrg Share this post Link to post Share on other sites
Posted 13 Jan 2016 Problem solved. It just need add OB 83-85-86 then the error will disappear. So amazing Share this post Link to post Share on other sites