Posted 4 Nov 2021 (edited) HELLO EVERYONE I am having problem writing in A1S68AD program, please help me out. My system configuration is as :- 1. A1S POWER SUPPLY 2. A2SHCPU 3. A1SJ71AT21B 4. A1S68AD 5. A1S62DA 6. A1SX81-S2 7. A1SX81-S2 8. A1SX81-S2 9. A1SY10 10. A1SY10 11. A1SY10 12. A1SX80-S2 13. A1SX80-S2 14. A1SY10 This is my existing configuration. But now there is one more slot empty and now i want to add one A1S68AD CARD in the empty slot, i tried writing the program for this card, but plc gives me error. SO, anyone can send me the program with addresses for this card. It will be very helpful as I am new to this A series Mitsubishi PLC. AND HERE BELOW IS THE ATTACHED EXISTING PLC PROGRAM AND SYSTEM IMAGES. PLC PROGRAM.zip Edited 4 Nov 2021 by vipin Share this post Link to post Share on other sites
Posted 4 Nov 2021 Attached is the manual A1S68AD_UserManual_IB-66576-F.pdf Share this post Link to post Share on other sites
Posted 4 Nov 2021 Thanks Theuns but i am not able to write to and from instruction. Could you please help me in writing i have attached the system images and program Share this post Link to post Share on other sites
Posted 4 Nov 2021 (edited) First of all your I/O assignment is blank under PLC parameter. Start off by entering info . eg slot 0 should type should be Special , Enter model name ( A1SJ71AT21B ) for reff. , Points will be 32. Then Slot 2 will be Special model name ( A1S68AD ) 32 points . ect. ect. until all models are done Edited 4 Nov 2021 by Theuns Share this post Link to post Share on other sites
Posted 4 Nov 2021 Did you read From plc (Parameter and Program) or only Program ? Share this post Link to post Share on other sites
Posted 4 Nov 2021 I read both parameter and programs , but there was no information in I/0 assignment. You should take a look at step number from 466-579. It is a program of A1s68ad card which is already installed in the rack . Share this post Link to post Share on other sites
Posted 4 Nov 2021 (edited) What PLC error do you have ? You should definitely do the i/o assignment Edited 4 Nov 2021 by Theuns Share this post Link to post Share on other sites
Posted 4 Nov 2021 (edited) It shows SPECIAL UNIT ERROR ERROR NUMBER 41. And there is one more thing in this system there is one special card A1SJ71AT21B WHOSE run, receive, send led never lit but the system works fine . Whenver plc is turned off and then turned on it always shows error in cpu and then after resetting the cpu it works normal. But even the send receive and rund led does not lit in A1SJ71AT21B card as you can see in the above photos I posted. Edited 5 Nov 2021 by vipin Share this post Link to post Share on other sites
