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Hi all. We are presently going thru a "What PLC should we use" exercise. The application is high-speed assembly machinery (around 100 pieces per minute) with primarily discreet I/O that runs from 100-300 in and half that out. Typical
machines also have 3-6 servos that are usually used in step and direction mode, sometimes with encoders. We have some installed GE Fanuc 90/30 PLCs (340 CPUs) running state logic but we are looking to change that to ladder. HMI will be via
Ethernet and we would also like to investigate moving to distributed I/O (ie, DeviceNet type stuff) to cut down on wiring if we can do that without sacrificing speed. I would think the contenders would be AB and Siemens in addition to GE. Anyone have any experience with these PLCs, or others, in this type of application?
Thanks... paul t
machines also have 3-6 servos that are usually used in step and direction mode, sometimes with encoders. We have some installed GE Fanuc 90/30 PLCs (340 CPUs) running state logic but we are looking to change that to ladder. HMI will be via
Ethernet and we would also like to investigate moving to distributed I/O (ie, DeviceNet type stuff) to cut down on wiring if we can do that without sacrificing speed. I would think the contenders would be AB and Siemens in addition to GE. Anyone have any experience with these PLCs, or others, in this type of application?
Thanks... paul t