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Search: Posts Made By: Steve Bailey
Forum: LIVE PLC Questions And Answers August 14th, 2018, 07:15 PM
Replies: 11
Views: 143
Posted By Steve Bailey
In a properly executed Modbus RTU network...

In a properly executed Modbus RTU network powering down one of the nodes will not disrupt communications between the remaining nodes. The designer of the system should have anticipated that one or...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 06:32 PM
Replies: 11
Views: 143
Posted By Steve Bailey
Presumably the PLC is the Modbus master. If so...

Presumably the PLC is the Modbus master. If so there is probably something in its logic that controls how it handles a non-responsive slave. Usually when a slave doesn't respond the master stops...
Forum: LIVE PLC Questions And Answers August 8th, 2018, 07:26 AM
Replies: 9
Views: 416
Posted By Steve Bailey
Think about the people who are going to have to...

Think about the people who are going to have to maintain the system after you've moved on. If you use two different wire numbering schemes you're making it more difficult to troubleshoot.
Forum: LIVE PLC Questions And Answers August 6th, 2018, 06:59 PM
Replies: 1
Views: 52
Posted By Steve Bailey
Are there any analog modules in the drop or are...

Are there any analog modules in the drop or are they all discrete? If there are analog modules you will need to download a configuration to the GBI module. My experience with the IC200GBI modules is...
Forum: LIVE PLC Questions And Answers August 6th, 2018, 09:30 AM
Replies: 12
Views: 228
Posted By Steve Bailey
Are you sure the Fanuc robot supports Ethernet IP?

Are you sure the Fanuc robot supports Ethernet IP?
Forum: LIVE PLC Questions And Answers August 6th, 2018, 09:26 AM
Replies: 12
Views: 228
Posted By Steve Bailey
What are you trying to accomplish? If all you...

What are you trying to accomplish?
If all you want to do is have the PLC command the robot to perform some actions and to tell the PLC when it is performing those actions, the easiest approach is to...
Forum: LIVE PLC Questions And Answers August 5th, 2018, 08:19 AM
Replies: 10
Views: 248
Posted By Steve Bailey
You did not include enough of the screenshot to...

You did not include enough of the screenshot to show the timestamp of the faults. It is possible that they happened a long time ago and were no longer relevant. Once a fault has been entered in the...
Forum: LIVE PLC Questions And Answers August 4th, 2018, 05:52 AM
Replies: 10
Views: 248
Posted By Steve Bailey
Double check your hardware configuration. There...

Double check your hardware configuration. There are discrepancies between what you declared in the software and what is actually present in slots 3, 4, 5 and 6. There is also something about the...
Forum: LIVE PLC Questions And Answers August 3rd, 2018, 12:17 PM
Replies: 4
Views: 207
Posted By Steve Bailey
The procedure is in the manual which can be found...

The procedure is in the manual which can be found here:
http://forums.mrplc.com/index.php?/files/file/443-ge-fanuc-series-one-plus-manual/
Forum: LIVE PLC Questions And Answers August 3rd, 2018, 08:44 AM
Replies: 4
Views: 113
Posted By Steve Bailey
You should not need the manual for basic...

You should not need the manual for basic information like that. You can probably find it in the quick start guide.
Forum: LIVE PLC Questions And Answers July 31st, 2018, 08:22 PM
Replies: 2
Views: 146
Posted By Steve Bailey
The default = 0 option means that when the CPU...

The default = 0 option means that when the CPU loses communication with the I/O modules on the drop, the analog signal is driven to zero. The alternative is to hold the last value before the...
Forum: LIVE PLC Questions And Answers July 28th, 2018, 09:49 AM
Replies: 3
Views: 214
Posted By Steve Bailey
Your instructor is trying to help you think...

Your instructor is trying to help you think outside the box. Most people will think of the pushbutton pressed event as the triggering action coupled with the timer. When you think that way how do...
Forum: LIVE PLC Questions And Answers July 19th, 2018, 09:58 AM
Replies: 8
Views: 156
Posted By Steve Bailey
No. The internal clock will get reset to its...

No. The internal clock will get reset to its default value if the battery dies. You can reset it from the programming software. You can also reset it from ladder logic using a SVC_REQ function.
Forum: LIVE PLC Questions And Answers July 19th, 2018, 07:57 AM
Replies: 8
Views: 156
Posted By Steve Bailey
According to the fault table entry in the QIS...

According to the fault table entry in the QIS PLC, it was commanded to stop running due to a SVC_REQ function. So yes, the SVC_REQ will "stop the PLC from giving its desired output".However, the...
Forum: LIVE PLC Questions And Answers July 19th, 2018, 07:27 AM
Replies: 8
Views: 156
Posted By Steve Bailey
The CMM311 is a serial communications module. The...

The CMM311 is a serial communications module. The COMMREQ instructions most likely command an exchange of data between two PLCs.
If your company will permit it, make a backup copy of the programs...
Forum: LIVE PLC Questions And Answers July 19th, 2018, 07:09 AM
Replies: 8
Views: 156
Posted By Steve Bailey
The fault entry in the "QIS" PLC is telling you...

The fault entry in the "QIS" PLC is telling you that the PLC stopped running its program because it was told to do so by a "SVC_REQ" instruction in ladder logic. Search the program for that...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 07:04 AM
Replies: 3
Views: 414
Posted By Steve Bailey
Bumping this to the top. The machine is located...

Bumping this to the top. The machine is located about 35 miles from Wausau.
Forum: LIVE PLC Questions And Answers July 16th, 2018, 03:32 PM
Replies: 3
Views: 414
Posted By Steve Bailey
Help needed in Wisconsin

Twice in less than a week!

Another former customer of mine has run into a problem. Their machine had a Red Lion Kadet HMI that went belly-up and had to be replaced with a current model. The...
Forum: LIVE PLC Questions And Answers July 14th, 2018, 02:21 PM
Replies: 1
Views: 189
Posted By Steve Bailey
Proficy Help files include a list of the ST...

Proficy Help files include a list of the ST functions. It looks like you may need to use named variables rather than addresses. Try creating an INT addressed to %AI18. That's assuming you have...
Forum: LIVE PLC Questions And Answers July 14th, 2018, 08:37 AM
Replies: 13
Views: 1,810
Posted By Steve Bailey
Here it is.

Here it is.
Forum: LIVE PLC Questions And Answers July 13th, 2018, 08:59 AM
Replies: 1
Views: 199
Posted By Steve Bailey
Seeking help in New Jersey

A former customer of mine (I'm retired) in the Somerville New Jersey area needs some help with a machine. It has an Automation Direct DL06, C-More HMI and a Sure Servo axis.
Send me a PM if you're...
Forum: LIVE PLC Questions And Answers July 10th, 2018, 02:09 PM
Replies: 13
Views: 685
Posted By Steve Bailey
Use Modbus function code 16 (Write multiple...

Use Modbus function code 16 (Write multiple registers) instead of code 6 (write single register).
For Master address use DDxxx instead of DSxxx. That's a 32-bit number.
For the number of master...
Forum: LIVE PLC Questions And Answers July 10th, 2018, 11:45 AM
Replies: 13
Views: 685
Posted By Steve Bailey
You send all 32 bits in a single write command....

You send all 32 bits in a single write command. According to the Modbus manual for the drive
The thing you will have to watch out for is to make sure the Click sends the 32 bits in the correct...
Forum: LIVE PLC Questions And Answers July 10th, 2018, 07:56 AM
Replies: 1
Views: 153
Posted By Steve Bailey
There is a capacitor on the CPU module that will...

There is a capacitor on the CPU module that will maintain the RAM memory for as much as a half hour while the battery on the power supply is disconnected. Some CPU modules also have a plug where you...
Forum: LIVE PLC Questions And Answers July 9th, 2018, 02:02 PM
Replies: 13
Views: 685
Posted By Steve Bailey
I'm still not clear on what the OP is trying to...

I'm still not clear on what the OP is trying to do. The Click supports 32-bit signed integers. How do you need to break apart that count of 655360 to send to the servo? Number of full turns of the...
Showing results 1 to 25 of 500

 
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