IC697ALG440 GE Fanuc PLC Training – Proficy Machine Edition Tutorial – Series 90-70 Analog

Introduction: GE Fanuc IC697ALG440 Troubleshooting Guide

This troubleshooting guide is a test of a GE Fanuc IC697ALG440 Expansion Analog Current Input 4 to 20 mili-amp. There are 16 points, or 16 channels. And this is an expansion from the IC697ALG230 Analog Input Module.

Step 1: The Setup

Illustrated is an IC697PWR711 Power Supply, and an IC697CPX772 Processor. And these are all in an IC697CHS750 5-Slot Rack. Note that the physical configuration that you see illustrated here is the same as is on your wiring diagram or door card. You you will see you have these wires; note the description at the bottom of the modules

In order for these two analog cards to communicate and send their information back to your software, Proficy Machine Edition (illustrated here), you have this wiring diagram at the bottom.There is on the left hand side of the diagram a circular E, and on the right hand side there is a square E. This is exactly the same that is on the ALG230, a circular E on the left and a square E on the right.

You will also notice these digits (see above). Next to the circular E is 3 and 4. Next to the square E is 1 and 2. What that is telling you is that you simply wire parallel from one module to the next in order to get this thing expansion capability.
So you have your circular E3 going into your circular E3, which are both terminals 36.Circular E4 to 38 and 38 to the module next to it and so on. E1 to 37 and E2 to 39. So this is a very simple parallel wiring into two modules. That is your physical configuration.

Step 2: Configuration in Proficy Machine Edition

In Proficy Machine Edition, you should establish in the main rack the IC697CHS750 5-slot chassis with all the modules described.

Note that there is no configuration for the ALG230 and there is no configuration needs for the 440, although, when you do establish the 440, that will be in slot number 3. You want to pay attention to the reference address. Illustrated here is a set up of AI 0009. And what that means is that when you go to your analog input table, you will all be looking from address number 9 through 17 for your channels.

The next thing is that you should be in Run Mode (see above). You should be able to see that your lights that are on, your OK lights are on for both modules and the expansion active is also on.
A little troubleshooting tip: occasionally, when you first set up these systems, these lights will always be in the configuration. What happens is that the expansion light is off and the OK light on the expansion module is blinking. If you have that problem (you must keep your battery plugged into your processor by the way) is to power down and power back up. Just do a power cycle for maybe 2 seconds. Power back up, and the blinking will go away. This is not illustrated here because these are already set up and working. But that is a common problem you will run into.

Step 3: Testing Using a Milliamp generator

The next step is that now that you have all this in working order and the processor is in Run Mode, you are going to go to your analog input table in Proficy Machine Edition. And you are going to be looking at channels 9 through24 as your expansion and you are going to test it by probing it with a mili-amp generator.


You are going to touch each lead (see above) to the corresponding channels. Channel 1,3,5,7,9,11,13 and 15 are on the right hand side. And 2,4,6,8,10,12,14,16 are on the left hand side. The polarities, positive and negative, are illustrated on the door card, or wiring diagram. So positive and negative; positive is 1 and negative is 3, and that is for channel 1.
And you look at your value in the Proficy Machine Edition, channel 2, channel 3, channel 4, channel 5, channel 6, channel 7, channel 8, channel 9, channel 10, holding it long enough to get
the full value.
If there is a particular channel that you think you might be having trouble with, on my generator you can increase or decrease the amount of milli-amps and watch on Proficy Machine Edition and the analog input table. In this illustration the value going down in very small amounts or going up in very small amounts at a time. And what you are doing here is you are making sure that the circuit isn’t just stuck on its full value.
So occasionally if these go bad and you put it on, it may give you a full value of 32,767. When you try to drop the value to see a lower value or lower scaling and nothing happens, that usually tells you that the circuit is blown. Now you should continue to test all the channels all the way through 16.
Once you have seen that all the channels are working and it is in good working order, you can be satisfied that this is a perfect module and there is nothing wrong with it.
The problem described before, that some or all of the channels are stuck on full value, or
you do not get an okay light are just some problems you can get with having an ALG440.

Tags: GE Fanuc, IC697ALG440, Troubleshooting Guide

This entry was posted on May 5th, 2015 and is filed under GE Fanuc, Troubleshooting Guide. Both comments and pings are currently closed.