PLC S7-300 Modbus TCP Server Part-1

[@marianoruiz4923]

Thank you, it´s the best explanation of Modbus and S7-300 I have encountered. Good job!. Otherwise.
Changes a lot the structure in Client mode?

[@abbasakbar1726]

thank you ❤

[@dok0ff]

I follow every step but when I download the program to the plc it goes in STOP mode so apparently the firmware versions mismatch but they don't.

[@generaltechnologyknowledge5165]

Dear sir,
Please don't forget insert block Fault interrupts
PROG_ERR[OB 121] to OB1

[@asuprof2154]

Hello. Is it works without modbus licence?

[@generaltechnologyknowledge5165]

Yes it work, but better we should use license

[@MdMozammelHossain]

hi, how can I use the same plce as client to read data from a MODBUS TCP/IP server ?

[@generaltechnologyknowledge5165]

Dear sir,
We can try buy revise setting as client in Simatic Manager and use Modsim for simulation and test it.
Thanks