Rodney

I have a number of A series P.L.C.s still in operation for more than twenty years. Many of which have had no part replacement in all that time including the power supplies. I have however had a couple of power supply failures on the Q series. Regards Rodney

I would suggest you also do some research on the company you have the interview with. It should go down well that you know something about the company Good Luck Rodney

Indra If you google "A7PUS" you will find a number of sites where you can download a copy of the manual. Rodney

Indra The website in the U.K. is www.mitsubishi-automation.co.uk. The difference between the A2S61P and the A2S62P is the rated output current for the 61P is 8A and the 62P is 5A. With regard to the A2SY13 there is no such module. However A2SY modules are output modules. Rodney

Hi Andy_P Thanks for the quick response I suppose NOT 253.15 would be the same as a off for the first scan. Rodney

Hi I am modifying a program in a C200H P.L.C and I am looking for what I use in the Mitsubishi World is a flag that is on for the first scan of the P.L.C. Also one that would be off for the first scan. Thanks Rodney

Spot on Bob but dont you have some sort of holiday today Happy Holiday Rodney

Hi Fuse Your Mitsubishi distributer should help you with that. Rodney

Hi I found the problem there was a there was a interlock IL(02) instuction. Thanks anyway Rodney

Hi I am looking at some problems on a C200H P.L.C where there are calculation instructions. The software for example has the add instruction but when the line becomes true which is only a pulse the the values are not added together. Prior to the add instruction the clear carry CLC(41) is used but not the 222.04. Would this have any affect on the calculation. Thanks in advance Rodney

Hi Mugs Do you have an high speed counter with the P.L.C? When M470 and M472 is on the counting is done externally. If you do not have a manual for the F2 P.L.C I am sure there is one in the downloads section here. In the meantime I am trying to get another F2 to test this. Rodney

Hi Mugs The timer c660 is setup to be an external counter with the use of M470. The selection of direction is done by M471 and M472 starts the counting. I do not have a F2 P.L.C to test this because mine has died after only 25 Years. But F2 manual does explain the operation of external counters. Rodney

Ice The WXOR instruction looks at the bit pattern of the two source devices S1 S2 and are analyzed (the content of S2 is compared against the contents of S1 ). The result of the logical analysis is stored in the destination device D. (s1) (s2) (D) WXOR D10 D12 D14 eg Value 15 28 19 Bit pattern D10 01111 D12 11100 D14 10011 If in the comparison of S1 and S2 you have two 1 then the result in D is 0 if either are 1 then you have 1. Rodney

Mugs Your assumptions are preety much correct and what you should see is the following. When your counter is below 7 M573 should be on. When your counter is between 7 and 25 M572 should be on When your counter is greater than 25 M571 should be on Rodney

Chints Mitsubishi inputs are read only they cannot be set. Rodney

Hi WLka The FX2n-16EYR is a unpowered extention block for the FX1 & FX2 P.L.C.s.So the addressing would depend on the P.L.C it is connected to. For example if your P.L.C has 16 outputs they would be y0 - y7 & Y10 - y17. Your first output would be Y20 and the last Y27. That would also be the same for the inputs depending on the amount of inputs on the P.L.C. Rodney

Carol This item is part of the Sc09 and it should have been attached with a short piece of cord as shown in your attachment. I do not know if you can bye it separatley Rodney

Damo The counter do not have a preset as do the timers so you use the function "comp" for your required count value eg >= >< Rodney

Hi Gemini There is a company here in the U.K. Lektronix Ltd that sells and repairs many electronic components uncluding Siemens S5. There website is www.lektronix.co.uk and I think they also have an office in Dubia. Rodney

Hi Damo Quadriga is a Dos based software sold by Pantek here in the U.K. The same company that markets Wonderware. All of its functions as far as I can remember are either menu or function key driven. So if you have a particular question can you give more detail. Rodney

Mike I have just checked some old software FXGP/WIN and that also asks for a P.L.C type. Gambit suggestion will do the trick Rodney

Hi Mike2008 Your P.L.C should be one of the type as you have mentioned in your post. You should see the type on the front of the P.L.C between the FX and in your case 32 which is the number of I/O. Rodney

Hi Lamonah Please find as follows the pinouts as requested PC ---------------------------------OP7 5 ------------------------------------- 12 3 ------------------------------------- 3 2 ------------------------------------- 4 link at pc 6 ---- 4 6 ---- 1 8 ---- 9 Regards Rodney

Sergei I_O Rack Thank you for your help Regards Rodney

I am looking an existing project for one of my customers and in the program I have come across some logic that is new to me and my manual does not explain in much detail the operation. The two instructions are "Move Digit" & Logical OR It Is programmed as follows MOVD(83) 001 #0103 0103 bcd DM0121 ORW(35 DM121 #0100 0100hex DM0168 I would appreciate any basic explanation on the above. Rodney