Analog Inputs On Remote I/O

[Noely 0]

Hi, Just wondering how you address an analog input from a remote I/O Thanx

[TimWilborne 108]

What type of Plc are you using

[Guest Guest]

Use BTW & BTR..example in the book...

[gravitar 3]

Hopefully he doesn't have a SLC 5/02..

[Noely 0]

Using slc 5/03

[Ken Moore 23]

If your 503 is a series "C" you can use the BTW & BTR, otherwise you have to use the M files directly, which can be confusing, as to which register, contains what data. I recommend that if your processor is not Series C, spend the money for a firmware upgrade. The upgrade cost is more than offset by the time savings. Ken

[gravitar 3]

Things might have changed since, but the last time I needed to obtain the upgrade chip for a 5/03 and 5/04 (about 2 yrs. ago), it was FREE!

[moorecontrol 0]

have just done it! what did you want to know?

[Noely 0]

just want to know how do you address it in order to work with it in the ladder program. If you have a sample code it would be great.

[Ken Moore 23]

How you access the remote analog I/O depends on which firmware your SLC has and the addressing of your remote I/O, most people use 1-slot addressing, but this isn't always the case. So..... We really can't help you, unless you give us more information. What series SLC? Addressing scheme? How is your remote rack set up? We can't just post some code, because each system is set up differently. Ken