ab to keyence

Hello all, I have a project where I need to remove an alan bradley plc and replace it with a keyence KV-16DR. I am in the process of writing the keyence program using the ab progam as a guide and noticed the ab has a function OSR. I know that this is a One Shot Rising Edge but can't find anything in keyence for this. Ab code is as follows:

I:0/0 B3:0 B3:0/8
--][------[OSR]-------------(L)
9

One, what is the purpose of the OSR, and two, what is the equivalent function in keyence?

Thanks,

Sounds like you are going in the wrong direction.

Removing ab to put in keyence?

We aquired this machine with an ab on it. The problem is I do not have any ab software. I mainly deal with siemens and some keyence. So rather than spend $2K plus for software, cables, etc, it is much less expensive and I am more familiar with keyence that ab. I got a keyence plc for less than $100 and the software is free. Moreover, the program I am converting is only about 30 rungs, not very big.

Thanks,

mrt19 said:

Hello all, I have a project where I need to remove an alan bradley plc and replace it with a keyence KV-16DR. I am in the process of writing the keyence program using the ab progam as a guide and noticed the ab has a function OSR. I know that this is a One Shot Rising Edge but can't find anything in keyence for this. Ab code is as follows:

I:0/0 B3:0 B3:0/8
--][------[OSR]-------------(L)
9

One, what is the purpose of the OSR, and two, what is the equivalent function in keyence?

Thanks,

Click to expand...

The purpose for the OSR bit B3:0/9 in this rung is to (set) latch the output address B3:0/8 (L) latching bit when the I:0/0 input bit is true for one scan. After the one scan, the I input bit is ignored until it transitions from true to false and back to true. This would allow another rung with the same output address B3:0/8 (U) to (reset) unlatch the bit even though the I:0/0 input never went false.

I cant help you about the Keyence part. I dont want to answer all the marketing questions on their site just to get the manuals or software.

Check my avatar for a general purpose one-shot. Just use the output of the one-shot to set your latch. Make another one for the unlatch.

RSLogix 500 Micro Free edition will support the MicroLogix 1000 and MicroLogix 1100 controllers. A serial cable is thirty bucks.

Since it's a sixteen-point Keyence controller, the A-B controller is probably one of the smallest MicroLogix.

I realize you have already made your decision, I just didn't want you to think you needed to get into thousands of dollars of software just for the smallest A-B controllers.