donles

I need to buy a laptop for use with RSLogix 500 and RSLogix 5. I'd like to keep the price down and from what I've seen on Rockwell's website, the requirements are not all that much. Does anyone have a favorite laptop brand or model? Thanks Don Lesniakowski

Thanks everyone. The Latitude D800 is now the D820. That's what I'm asking for. Don Lesniakowski

I'm embarrassed to say that it was the keyswitch. I didn't see it. I even looked for one on the front of the cpu earlier. Everything OK now. Thanks guys.

I'd like to rename a 90-70 program residing in a PLC. I have created a new folder with a new name and saved the program from the plc. That only gives me a mismatched folder and program which is not allowed. I've read the GE manual and searched here but have not found an answer. Thanks.

Yes to both questions.

I wish it was that simple. In addition to the previously mentioned warning about mismatched folder/program names, I'm also seeing "S38 Insufficient privelege for selected operation." Password screen does not imply that password protection is enabled. Level 4 is selected with an "x". Folder is not locked. Password protection is enabled on the CPU configuration screen. I receive the same insufficient priveleges message upon attempting to disable pw protection. I've spoken to GE Automation support this A.M. and sent the program files for review. I'll report back. Thanks.

I've done that but although the folder name changes, the program name within does not change. Logicmaster will not allow me to upload the mismatched folder/program to the plc. Hence, my problem.

Logicmaster

I'm trying to understand how a particular alarm detecting subroutine works and I'm stuck on some FAL instructions. The plc is a AB PLC 5/40e. The main ladder logic runs pumps, motors, valves , etc. and programming for each device looks for feedback from pressure switches, auxillary contacts, etc. to confirm operation. For instance, if a motor failed to start the code would turn on N11:0/2. The main ladder jumps to an alarm-search subroutine and then the alarm sounds. The first FAL instruction is: Control R6:0 Length 10< Position 0< Mode ALL Dest #N11:20 <8 Expression #N11:0 AND -1 2'nd FAL Control R6:1 Length 10< Position 0< Mode ALL Dest #11:40 <0 Expression #N11:20 XOR #N11:30 3'rd FAL Control R6:2 Length 10< Position 0< Mode ALL Dest #11:40 <0 Expression #N11:40 AND #N11:20 Then FSC Control R6:3 Length 10< Position 0< Mode ALL Expression #N11:40>0 The R6:3 IN bit will go high if there is an alarm condition. I'm having difficulty understanding what the FAL's are doing. An explanation is appreciated as is a pointer to some related reading. Thanks donles

Ron, Thank you for your detailed answer to my question. I've read through it once and will go over it again now with my program code handy. I'll look for the typos that you mentioned. I thought that I was accurate with the instructions but it's easy to do. Thanks again, donles