I am using a Siemens s7-300 PLC and using Step 7 software to reach it. However last week I could communicate with the PLC and change online and offline status. This week I cannot get to the PLC in in way not even with a ping from another computer. I am reciving a message numbered 33:16656 and have looked it up but the instructions. 33:16656 is...Online: Connection could not be established. The connection partner is not responding. Power has been turned off to the driveat least once in the last week. ANy answers would be appreciated.
Thanks
Thanks