Remote I/O

[Noely 0]

Hi Just want to know how far can you place a bank of remote I/O away from the main plc and how many banks or module can you have. Thanx, Noely

[Guest GATI]

What´s your PLC?

[Ken Moore 23]

Using the correct wiring and such, AB remote I/O can be thousands of feet away, it will depend on the baud rate you wish to run at, the faster the baud rate, the less distance allowed. I don't have the specs. in front of me, but I know 4000 ft is doable, and I believe that you can go upto 10,000 feet.

[Sanif 0]

..excerpt from Data Highway/Data Highway Plus/Data Highway II/Data Highway-485 Cable Installation Manual Hope this help.

[Noely 0]

I will be using a slc 5/03 processor

[gravitar 3]

I don't know how to display this chunk I cut out of the 1747-SN user's manual so I attached it. It gives the max. length per selected baud rate. It shouldn't matter that you are using a 5/03. The specs for RIO are the specs for RIO, regardless of the scanner or adapter.

[gravitar 3]

nevermind.. I see that when you attach a file, it displays it :)

[Noely 0]

Thanx for your help. Just one more question, will the rslogix automatically address the inputs and outputs when I auto-configure the plc. Once again thanx for the help Noely

[gravitar 3]

The 32 words of input and 32 words of output will be added to your data table when RSLogix sees that you have a 1747-SN in the chassis. But RSLogix won't know how this relates to the "real world" I/O.. How these words are mapped to your adapters is based on how you allocate the logical rack space to them. The 1747-SN user's manual is a pretty good resource for making sense of this.

[Noely 0]

can i use the 1747-asb remote i/o adaptor with the 1794-asb

[gravitar 3]

you should be able to daisy-chain both of those to the same scanner. (if that was your question!)

[Noely 0]

You must be sick of me asking about this flex i/o but i have my scanner and flex i/o communicating. I have on my flex i/o a 8 channel relay output. I have my scanner placed in slot 1 of my plc. The problem i have is that i cannot seem to force an output on in that flex i/o module. Could you give me any pointers as to how to address it. Could you also tell me about this group thing that is in the edit g data of the scanner advanced configuration. Thanx for your help so far. Just new to this flex i/o