RDay

I am not sure what you are asking but I will give it a shot. If you have the code you wrote in the first place (or you can download it from the PLC) that contained the error, you could correct that error and then upload the code agian. You do not have to rewrite it.

Smartguy Sorry. I should have said traffic signal. I sometimes forget that others may not be familiar with my terminology ("Hick-nees"). You could use a few panel lights to simulate the traffic lights and with a few push buttons you could even have pedestrian crossings (walk/don't walk). This simple application can have many variations too. Some traffic lights switch to 4 way flash after a certain time of the day. Some switch to sensor mode during light traffic hours, a prox or photo eye could be used here. Some have turn lane signals, ECT, ECT. It would only be limited by the number of I/O you have. It is a fairly straight forward program but it forces you to think about sequencing and logic. Let me know if I can be of any help.

You could use the PLC to control many things. Process equipment, automated assembly, conveyors, ect. It seems that the most widely used (or at least inquired about) student application with a PLC is the "STOP LIGHT". It is a simple process but it uses many functions such as timers, counters, bit shifts, ect. You may want to consider this one. As for the PLC itself Automation Direct.com has a PLC for around $100.00 Software is $99.00 Programming cable is $30.00. It is a very capable unit and it is not too bad to learn to program. (http://web2.automationdirect.com/adc/Shopping/Catalog/PLC_Hardware/DirectLogic_05/PLC_Units/D0-05AR

The smallest and cheapest (inexpensive) PLC I have found yet is sold by Automation Direct. It is their DL05 at just $99.00. You would also need to purchase the programming software (PC-PGM-BRICK) at $149.00 and a cable. However check out this site Tri-plc they offer an "OEM" PLC that is programmed with a combination of both ladder and basic. I have no experience with this brand but others may be able to help you. Hope this helps.

Here you go. PP12.zip

Well, I don't have a program for a 1200 but I do have one for a 1000. It is for a automated stamping press. I would be glad to let you have that if you want.

When I opened your program RSLogix prompted that a "Auto Save Recovery" file was found. The first time I used this file and the instruction was missing. The second time opened it I didn't use the recovery file and the instuction was in there. Hope this helps.

The WinPLC can not directly access a DB such as "MS Access". There is however a software package from Interworx that will allow the WinPLC to do this. See link below. Interworx DW WinPLC Professional v2 I am currently evaluating this for a future project. I have several WinPLC that use the EZTouch as a HMI. Now, I am running a Studio project on an Advantech PPG153-T and it uses a MS Access DB directly. I have several hundred parts with their respective specs and setup data stored in my DB. The operator can load the data from the DB or modify data in it. They can also add new parts or delete old ones. Studio has SQL blocks that allow you to perform DB functions from your flow charts. Studio has built in HMI capabilities. If you are planning on using the PC I would opt to go with a runtime license of Studio. It is a bit pricier than the WinPLC but may be worth it in that it has the DB functions and HMI screens. Hope this helps and let me know if I can be of further assistance.

If anyone is using AutoCAD Electrical 2004 or VIA WD they may be familiar with the "INSERT RULED TABLE: import comma-delimited file and insert as ruled table" function. I have a block of a VFD that I use quite often and I always list the drive setup parameters on the drawing. Typically in the past I would insert the block and then just enter the parameters as text but now I would like to use a spread sheet and the "Insert Ruled Table" function to do this. I wanted to set up a button that when clicked would let me pick my block from the icon, menu insert it, fill out the blocks attributes, and then bring up the "Insert Table" function and allow me to pick the one that I need and insert it. I have set up a button with the following code " ^C^C(if (not wd_load) (if (setq x (findfile "wd_load.lsp")) (load x))) (wd_load) (c:wd_insym_dlg);wd_14_csv2tab ". I was hoping this would let me insert my block and then insert the table but it doesn't completely work. It does bring up the Main Menu of Schematic symbols and it will let me pick my block and insert it as normal but it stops there. Hopefully I am just missing something from my button code. Any ideas?

Not as far as I know. If I were you I would contact Host Engineering and ask them. They may have some work around.

You have an older unit. After Entivity came to own Think & Do it eventually became Studio. So what you have is equivalent to a H2-WPLC1-SD. You will have to use Studio to program that one. You will also have to update the firmware but that is not a big deal. A development license of Entivity Studio cost $3495.00. If you don’t want to invest that much and need some one to write the code for you let me know.

It depends on which WinPLC you have. If you bougt the Think & Do (Studio) WinPLC you will need Entivity Studio to program it. These should be part numbers H2-WPLC1-SD and H2-WPLC2-SD. If you bougt the Think & Do (Live) WinPLC you will need Think & Do Live to program it. These should be part numbers H2-WPLC1-LV and H2-WPLC2-LV. I have heard that you can purchase a CE only version that can be programmed with VB or VC/C++ but I dont know the status on it. You may check with Host Engineering to find out. Host Engineering Let me know if I can help you out with it.

I have used the WinPLC and Think and Do (now called Entivity Studio) in many applications. What questions do you have?

If you asking how to layout the components that make up the logic of the rung such as the XIO, XIC, OTE, and ect. Power flow (logic flow) is typically from the left rail to the right rail. So inputs or internal bits are on the left, outputs on the right.    I:0/1   I:0/2       O:0/1 |---| |-----| |----------()-----| |                      |   O:0/2   | |                      |-----()-----| |                                      | IE: If input 1 AND input 2 are both on, then turn on output 1 AND output 2.  I:0/1              O:0/1     |---| |---------------()---| |  I:0/2   |                  | |---| |----|                  | IE: If input 1 is on OR input 2 is on, then turn on output 1. If you have multiple outputs being controlled by a rung they should always be placed in parallel never in series. Now if you are asking how the programs control logic sequence should be laid out. Think of what you are trying to do and start at the beginning. 1. Start the conveyor. Latching logic that controls the conveyor. 2. Box tracking. The shift logic for your array. 3. Photo eye control. The timer control logic. 4. Fault handling. The logic that checks for the timers done bit, unlatches the conveyor, and turns on the fault light. You can post the code that you have so far for critiquing.