Working closely with the clients team, we decided that the best controllers for this project were the EX10e plus SmartRails and WebMI for every machine.
Remote Plant Access
We chose WEBMI for:
- remote access of the plant
- changing recipes and production control
- variation of frequency and brushless drives and motion controllers.
The primary reason these controllers were used was for their wide-ranging functionality.
Improved Communications & Control
The carding machines in this project included a breaker and finisher. A breaker produces jute slivers by breaking up the fibres. The finisher on the other hand is fed with the slivers from the breaker to produce a stronger, better quality jute. These machines have at least nine frequency drives between them all in CANOpen network.
To avoid the risk of losing finesse in acceleration and deceleration ramps, which are created in the EXL10e and then sent to the drives over CANOpen communication, the IO are all on SmartRail in a separate CsCAN network. This also allows communication to the other Controllers in the Plant for data exchance and Ramp synch. Ethernet Channels are used for remote access and intranet connection.
Many features within the Horner controllers were extremely useful for this project, for example the two CAN and two Ethernet ports. These ports provide fantastic network capabilities and CANOpen configuration. One port is used for programming locally and the other can be used by the end customer or by WEBMI.
The CANOpen protocols allow a user to know more about the drive functionality. This gives the user more information and more parameters, resulting in more control for the user.
In terms of software and programming, this project was created using Advanced ladder. The project also used Horner’s WebMI software. This facilitated the monitoring of progress using a PC, but it is also possible to do this with the touch screen controller.
Another reason the EXL10e was used, was the flexibility it offers for future modifications. For example, EXL10e is easy to expand as it has two CANopen ports. Having these two ports gives easy networking to I/O’s and other Horner controllers. The two Ethernet ports allow customers to have access to the machine on the Intranet which can be found on the Horner website.