Going from a 1000 to a 1400. This plc connects to a DNI. I’ve managed to load program but I’m getting a device net communication http://www.plctalk.net/qanda/attach...ent.php?attachmentid=52321&stc=1&d=1570267190
Going from a 1000 to a 1400. This plc connects to a DNI. I’ve managed to load program but I’m getting a device net communication http://www.plctalk.net/qanda/attach...ent.php?attachmentid=52321&stc=1&d=1570267190
the attachments were supposed to be pictures of name plates with part numbers.
"but I’m getting a device net communication"
And they left no documentation on how they did it.
Holly said:...I’m getting a device net communication fault on the one I just replaced...
Holly said:...I’ve managed to load program...
Holly said:...they left no documentation on how they did it...
Just to add a few more brushstrokes to the picture you're painting us...
Can you please confirm if there is a 1747-SDN DeviceNet Scanner module in the SLC 5/04 chassis acting as the DeviceNet Master polling all these remote MicroLogix controllers via their local 1761-NET-DNI DeviceNet Interface?
And if so, what error codes are showing on the 1747-SDN display?
What Series (A or B) is the DNI Interface that is connected to the new MicroLogix 1400 controller?
Do you have the DNI Configuration Utility installed?
Do you have software access to view and configure the DeviceNet network, such as RSNetWorx for DeviceNet?
You appear to have RSLogix software to view/configure the MicroLogix 1400 controller project, both offline and online, yes?
Is the program loaded and running in the MicroLogix 1400 a conversion of the original MicroLogix 1000 program, or is it a new program with the original logic copied over?
Which communications port and which cable is connected between the MicroLogix 1400 and the DNI?
Is the MicroLogix 1400 communications port configured correctly for DF1 to match the DF1 configuration in the DNI (DF1 Baud Rate), similar to the original MicroLogix 1000 port?
If the 1761-NET-DNI is a Series B -
In the configuration for the DNI there is a specific parameter 0011 "DF1 Device". For a MicroLogix 1000, this parameter should have been set to "3" - "MicroLogix 1000".
For an SLC 500, or "other" models of MicroLogix controllers, this parameter "should" be set to "2" - "SLC/other MicroLogix". I've a conditional "should" there as I believe this parameter configures the DNI to expect the default N7 Data File for the MicroLogix 1000 to be assigned for the Input and Output Data File. The MicroLogix 1400 also uses the N7 Data File by default. So it is "possible" that this parameter setting should remain set for "MicroLogix 1000"? The SLC 500 controllers, and the MicroLogix 1500, for instance, use the N9 Data File as their default integer data file.
But there may also be other reasons, that I'm not aware of, why you must change it to "SLC/other MicroLogix" when using a MicroLogix 1400, regardless of the fact that it uses the same default N7 Data File.
So it is possible that the DNI "might" need to be "touched"?
As I've mentioned, there are also parameters in the DNI to configure the default integer Data Files for the DF1 controller I/O data mapping. These parameters should have been set to "7" for the default N7 Data File in the MicroLogix 1000 and should be left at "7" for the MicroLogix 1400, as its default is also the N7 Data File. However, if for instance you are now using say an N10 Data File in the MicroLogix 1400, then you would have to change these parameters from "7" to "10".
Note: If you do find you need or would like to change any parameter settings in a Series B DNI, then you must first set it into idle mode. You do this by first setting parameter 0012 "I/O Scan Enable" to "0" - "Disabled" and then, after you've changed any parameters, set it back to "1" - "Enabled".
Apart from us trying to piece together what the status quo is, and if you can answer "yes" to having the wherewithal to view/modify the DNI configuration; I too would advise you to examine the existing, working MicroLogix 1400/DNI setup. It would be the best way to remove all this guesswork on our part and question answering on your part.
Thanks to all for taking the time to respond. I’d like to ask a basic question for starters. If you were tasked with finding a replacement for the micrologix 1000 in this situation and you wanted the easiest and simplest solution taking into account the fact that we have no one on our staff with much Allen Bradley experience and certainly not on your level would you have chosen the 1400? I asked only because we have undergone tremendous turnover and anyone who may have been involved in the one successful change out is gone now. Based on your inquiries if you tell me this is the best solution without having to replace or upgrade other parts of the system then we will have to bring someone in.
Geospark said:Can you please confirm if there is a 1747-SDN DeviceNet Scanner module in the SLC 5/04 chassis acting as the DeviceNet Master polling all these remote MicroLogix controllers via their local 1761-NET-DNI DeviceNet Interface?
Yes, there is a DeviceNet master 1747-SDN local to the SLC 5/04 chassis.
I open a nameless quotation
Holly said:I open a named quotation
I open a named & linked quotation
I close all quotations
Geospark said:Can you please confirm if there is a 1747-SDN DeviceNet Scanner module in the SLC 5/04 chassis acting as the DeviceNet Master polling all these remote MicroLogix controllers via their local 1761-NET-DNI DeviceNet Interface?
Yes, there is a DeviceNet master 1747-SDN local to the SLC 5/04 chassis.
Holly said:Thanks to all for taking the time to respond. I’d like to ask a basic question for starters. If you were tasked with finding a replacement for the micrologix 1000 in this situation and you wanted the easiest and simplest solution taking into account the fact that we have no one on our staff with much Allen Bradley experience and certainly not on your level would you have chosen the 1400? I asked only because we have undergone tremendous turnover and anyone who may have been involved in the one successful change out is gone now. Based on your inquiries if you tell me this is the best solution without having to replace or upgrade other parts of the system then we will have to bring someone in.
Holly said:...We have a process line that is divided into sections(operations). Each of the sections has a micrologix 1000 that communicates to a slc 5/04 through a DNI...