Dear Experts,
Have a requirement of integrating Allen-Bradley E3 Plus and PowerFlex 755 drive with Delta V on Devicenet. If anyone worked on such application, please share the info.
Thanks ,
Mani
Mani,
MYNAH Technologies customers have had success integrating both the Allen-Bradley E3's and PowerFlex 755 drives with DeltaV using the VIM (Virtual IO Module). The only issue is that the VIM does not have a DeviceNet interface but it does support Ethernet/IP.
The Powerflex 755 can communicate via different protocols depending on the communication interface it uses. A Powerflex 755 with a 20-COMM-"D" interface can communicate via DeviceNet. Alternatively, the Powerflex 755 can utilize the 20-COMM-"E" which would allow it to communicate via Ethernet/IP.
The AB E3 Plus only communicates via DeviceNet so it cannot communicate directly to the VIM. However, you can use the Rockwell 1788-EN2DN Ethernet/IP to DeviceNet Linking Device to act as a gateway between the E3 Plus and the VIM. The catch with this device is that it only supports one connection, so it could not act as a gateway for multiple devices.
In summary, you would need the following:
1 Virtual IO ModuleGeneric Ethernet IP firmware for the VIM1 AB 20-COMM-E interface for the Powerflex 7551 AB 1788-EN2DN linking device to act as a DeviceNet/Ethernet/IP gatway between the VIM and E3 Plus
We have an article that describes how to interface the VIM with the 1788-EN2DN here. I've also written an article that describes how to interface the VIM with a Powerflex 755 using a 20-COMM-E but it isn't published yet. If you are interested I can work on pushing that out the door.
In reply to Jake Nichelson:
Even better! You could use the 193-DNENCAT instead of the EN2DN. This gateway supports up to 6 DeviceNet Devices. If your devices are already on DeviceNet, all you would need is the following:
1 Virtual IO ModuleGeneric Ethernet IP firmware for the VIM1 AB 193-DNENCAT
We don't have an article that describes how to communicate to the DNENCAT specifically but the VIM interface instructions are virtually the same as the EN2DN. I have worked with a customer who had success with this configuration.
You could use one of the many DeviceNet OPC Servers and Mirror the points. That's probably the least expensive option.
Jake,
Thanks for sharing the info.
Could you please share the article which describes about the VIM module and Powerflex755 integration using Devicenet?
Need Status word and Control word Bit pattern for the following I/O reference.
Status Word :
• Running
• Fault
• Auto Mode
• Disconnected
Control Word:
• Start/Stop
Have gone through the manual “PowerFlex 20-750-DNET DeviceNet Option Module”. It seems status and Control words are 32 bit.
There is no much information on Speed set point from DCS , Current reference to DCS related signal as well.
Thanks in advance,
In reply to manik:
If you read Jakes manual 1 AB 20-COMM-E interface for the Powerflex 755, you will find info starting at chapter 4.
Niklas Flykt
Klinkmann Oy
Key Account Manager safety products
nikfly@gmail.com
As described above, the VIM has no DeviceNet interface so the VIM could not communicate directly to the DeviceNet Option module. The VIM would need to communicate to an Ethernet/IP-to-DeviceNet gateway. This is the reason why I cannot provide any documentation on how to interface the VIM with the DNET module.
The simplest and most used option for the PowerFlex Drive is to use the 20-COMM-E interface (when communicating to the VIM). I can provide documentation on how to interface the VIM with this device because it communicates via Ethernet/IP rather than DeviceNet. MYNAH Technologies has tested the EN2DN and I have a record of a customer successfully using the 193-DNENCAT but MYNAH has not personally tested this.
The 750 Series PowerFlex Drives do use 32-bit words. You can bring in 32-bit words into DeltaV using Ethernet/IP Class 1 but you can also split the 32-bit words into 16-bit words.
If you are looking for a detailed layout of the logic command and status words, you can find them in Appendix D of either the 20-COMM-E or 20-COMM-D manual.
DeltaV Integration With AB PowerFlex Using Ethernet/IP Class1 Messaging:
www.mynah.com/.../deltav-ab-powerflex-configuration
In reply to Niklas Flykt:
The article Niklas provided uses the PowerFlex70. The process is essentially the same but the IO mapping is slightly different between the two.
Jake/Niklas,
It has been finalised that we are going to use Delta V S series Devicenet interface card for this integration.
Please share if any designed designed modules and FP available.
Thanks,