OP77b Trouble

[Javier79 0]

Hi, my problem is when i tranfer the program to the OP the ModBus protocol doesn't run. What are the errors possibilities??? Someone can help me, please. Javier. Thank you. Edited 12 Oct 2005 by Javier79

[Jorji 0]

Why you use ModBus protocol??? U can transfer project to OP77B by many ways: serial, usb and MPI protokol. When switch on the power of OP check the setup - maybe there is something wrong.