immunoman

I'm inputting (3) 3 decimal 4 point digit entries. How many input modules would be required and with how many points? How would the addresses be assigned in Logix 500 and 5000?

Is it possible to connect more than 1 thumb wheel combination on a single input module? Logix 500 requires thumb wheel data entered to the word level so the only way to enter 2 combinations must be to delimit one from the other. If this is possible, how would it be done? My same question refers to Logix 5000 as well only its case delimiting the tags.

I'm having trouble doing an FRD math conversion using a micrologix 1000 32AWA on a textbook problem I'm working on. Since there are only 20 inputs on this unit, I'm using 4 of them to enter a single BCD digit. The other simulated thumb wheel entry is coming straight from an integer register. The integer register converted no problem, but the simulated thumb wheel entry for which I used 4 toggle switches will not convert. Both conversions are on the same rung. Does anyone have an explanation?

Can rs logix 500 starter be used with micrologix 1200. I ask because only micrologix 1000 and 1100 can be selected using micro starter lite version 8.10.00. Is there a newer version or a "non-lite" version available? If so, how can I get it?

Thank you. It makes a lot more sense now.

The problem seems to be that since the conversion takes place prior to the reset, the destination always overflows. You mention a temporary register, but what else can it be other than the destination address of the instruction. If that register overflows I believe any other register you transfer to will have a max value as well. I even try performing the conversion only if the overflow trap bit isn't set with the result being the same. I can't understand why the destination overflows to begin with. You mentioned something about filtering the input, but as I said, I am simply testing the instruction, and putting the decimal value directly into an integer register.

This is just a learning excercise. I'm simply putting a value in one of the integer registers, and attempting to perform the conversion using a push button on a training kit. I tried unlatching the S:0/1 overflow bit as you suggested after performing the conversion into a temporary register. Both the temporary register and the move to register are at their max and the processor faulted. I kind of expected that since the unlatching of the bit is performed after the conversion takes place. I also tried using a one shot, and that did not help either.

This is just a learning excercise. I'm simply putting a value in one of the integer registers, and attempting to perform the conversion using a push button on a training kit. I tried unlatching the S:0/1 overflow bit as you suggested after performing the conversion into a temporary register. Both the temporary register and the move to register are at their max and the processor faulted. I kind of expected that since the unlatching of the bit is performed after the conversion takes place. I also tried using a one shot, and that did not help either.

When I do an FRD math conversion in RS Logix 500 I sporadically get an overflow error. I don't detect a pattern, but the numbers I attempting to convert are less that 1000 decimal, and the error sometimes occurs at values as low as 45 decimal. Can anyone explain why this may occur when converting from one integer register into another?

When I use the free trial version of 5000 and attempt to translate a 500 program, I get a message saying the .txt file does not exist or I to not have read permission. The file I'm translating has an .RSS extension so I'm led to believe this is where the problem lies.

When assigning an alias you are given the option of Local:?:C or Local:?:I. The first selection gives you a lot more choices and is beyond my scope of understanding. In fact the only alias I do understand is that of type Local:?:I.Data used to designate a discrete I or O. The other option in Local:?:I is Local:?:I.Fault. If someone can explain when to select Fault it would also be appreciated.

Is there any downloadable software that can be used to simulate code written in the offline version of the software provided by ab?

How is a n7:? integer register in RS Logix 500 replaced is Logix 5000? Take for example a math function where the source was given as an integer register. How can a similar scenario be peformed in 5000? I notice you can assign a tag to the source, and place an integer value below. Is there still a data table where that value can be viewed?

What's the difference between a controller scoped and program scoped tag in RS Logix 5000?

How do you assign an alias to a status bit in RS Logix 5000 given there is no reference to an I/O point?