J
The PLC running our plant is a Siemens Simatic S7 TD-200. While we have an I/O list, we do not have the original program or password to access the PLC. The engineer who installed and who programmed the PLC did not provide us with the program and has not been contactable since installation. We believe he may have gone bankrupt. In short, we got dudded. We have contacted Siemens who have advised that the system was built not to be over-ridden and so they were unable to help. They "unofficially" suggested that we look outside the scope if we wanted to find someone who might have experience in dealing with this particular PLC and suggested this website, which until then I had never heard of. Has anyone ever successfully managed to gain access to this model PLC without a password and without the original program?? Thanks!