Hi, I've written a program which connects to a Siemens S7-200 (cpu 226) and I can sucessfully read and write to inputs and outputs.
However when I try to read daveV memory, readbytes() returns 3 which libno.cs says means "item is not available". Specifically:
daveResItemNotAvailable200 = 3; /* means a a piece of data is not available in the CPU, e.g. */
Any ideas?
Thanks, Mark
However when I try to read daveV memory, readbytes() returns 3 which libno.cs says means "item is not available". Specifically:
daveResItemNotAvailable200 = 3; /* means a a piece of data is not available in the CPU, e.g. */
Any ideas?
Thanks, Mark