PM 554 program download with TK503-504 cable
I am trying to download a program in the PM 554 PLC using a TK 503-504 cable. The communication parameters seem tio correct and after following the entire procedure the PLC does not communicate with the PC. The error reads
Communication Error (#0) : Logout performed
What could be the problem? I have already checked the comm settings, the driver settings and the comm parameters
I have read the comment in the previous answer...may be the CPU eCo have a problem?
Do you have never use this unit before?
Or the com port is define in the program like a different protocol (CS31, ModBus...)
If you have the program backup, try to shut down the cpu.
With cpu de energized, move the switch from RUN to STOP and apply now the power to the CPU. Now the com port is reset to COM, retry now to comunicate with your TK cable.
If you are sure about cable and com port on PC...remain only the cpu!
Let us know about the result
Both from previous answers is correct.
When restart the CPU (deenergize CPU, switch to stop, energezi CPU) you have COM1 port with default settings.
Now you have to set default settings in Codesys for COM1 - see below.
You have to set the same settings to your COM port on the PC (check COM port, used for TK503) and set to it boud rate: 19200, parity: none, data bits: 8, stop bits: 1
Check good connection of TK503 to the CPU (screws also)