ASI / SLC

[kale 0]

Dear All, I need to to connect NPN sensors to SLC 5/04 through ASI system does AB has complete pakage from master cards, slave, power supply and ASI sensors to support such soultion, please feedback. thanks kale

[Ken Roach 194]

No. Rockwell does not promote or develop AS-Interface products. That's a Siemens technology and they are welcome to it. If you are doing an ASi - like application with small amounts of I/O, Rockwell has some new features in their DeviceNet scanners that allow you to configure the system with only a few ladder logic instructions; you don't need the configuration software, PC interface, or the learning curve that comes with those. I would choose DeviceNet over AS-i when using A-B controllers, any day.

[kale 0]

Dear Ken, Thanks for the reply, but one point if we use device net network we must also use device net components such as AB devicenet sensors and I think they are expensive with reference to the ASI so do you have any other AB soultions for remote sensors. Best regards

[Ken Roach 194]

When you use AS-Interface, your plug into networked I/O blocks with the AS-Interface cable, but use ordinary, inexpensive, non-network-enabled sensors. The sensors have no sophisticated features. When you use DeviceNet, you have the option of using expensive, network-enabled, feature-rich sensors. But you can also use I/O blocks with ordinary, inexpensive, non-network-enabled sensors. Look at A-B's1732D series of ArmorBlock I/O for an example of a device that is about as simple as an AS-i block. Are you trying to just reduce cabling costs by using a device-level network ? Or are you trying to comply with some specification ?

[kale 0]

Dear Ken, Actually I need to use remote sensors ( max distance 50 meters) and in the same time I want to reduce number of cables and ease troubleshooting and in the same time not to forget cost impact, so sir what is your recommednations. thanks