The_Wanderer
Member
Hello All,
Has anybody else had problems communicating through a modem to an E-series HMI?
We have been placing external modems on our machines for a while now, and have no major problems establishing communications with the PLC. The systems in questions are usually an FX series PLC and an E-series HMI (E100, E200, or E700 depending on the system.). The modem cable is plugged into the back of the HMI, and talks with the PLC in passthrough mode. Online monitoring and upload/dowload all work fine. However, if we try to upload or download to the HMI itself, problems occur. Sometimes the software can't find the HMI, sometimes it can. When it does find the HMI and try communicating, the HMI will switch to transfer mode, but will then freeze, and only start working again after a powerdown and reboot.
I have tried adjusting the communications parameters with no success and played with the pass through settings on the HMI with no results either.
The modem itself should not cause problems, as the way I see it in our setup, the modem is merely a verrrrrryyyy long extension lead for the programming cable.
Usually this is not a big problem, as HMI changes are very rare (I never make mistakes ), and our customers are all here in Ireland, with nothing more than 3 hours drive away so that if a chnage really is neccessary, it can be done.
Now, though, one of our machines is in Austria and needs a small HMI change. Bit too far to drive now... I am headed over there in a week or so, but need to solve this problem before then.
Any suggestions?
Has anybody else had problems communicating through a modem to an E-series HMI?
We have been placing external modems on our machines for a while now, and have no major problems establishing communications with the PLC. The systems in questions are usually an FX series PLC and an E-series HMI (E100, E200, or E700 depending on the system.). The modem cable is plugged into the back of the HMI, and talks with the PLC in passthrough mode. Online monitoring and upload/dowload all work fine. However, if we try to upload or download to the HMI itself, problems occur. Sometimes the software can't find the HMI, sometimes it can. When it does find the HMI and try communicating, the HMI will switch to transfer mode, but will then freeze, and only start working again after a powerdown and reboot.
I have tried adjusting the communications parameters with no success and played with the pass through settings on the HMI with no results either.
The modem itself should not cause problems, as the way I see it in our setup, the modem is merely a verrrrrryyyy long extension lead for the programming cable.
Usually this is not a big problem, as HMI changes are very rare (I never make mistakes ), and our customers are all here in Ireland, with nothing more than 3 hours drive away so that if a chnage really is neccessary, it can be done.
Now, though, one of our machines is in Austria and needs a small HMI change. Bit too far to drive now... I am headed over there in a week or so, but need to solve this problem before then.
Any suggestions?