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Search: Posts Made By: danw
Forum: LIVE PLC Questions And Answers September 14th, 2018, 11:52 PM
Replies: 5
Views: 307
Posted By danw
Does Beta tester ring a bell?

Does Beta tester ring a bell?
Forum: LIVE PLC Questions And Answers September 11th, 2018, 10:23 PM
Replies: 5
Views: 307
Posted By danw
It's a transit time ultrasonic flow meter. ...

It's a transit time ultrasonic flow meter. Entrained air (bubbles) or suspended solids are the enemy of transit time, scattering the energy in the ultrasonic 'beam'. An alternative like a PD meter...
Forum: LIVE PLC Questions And Answers September 10th, 2018, 10:21 PM
Replies: 3
Views: 259
Posted By danw
Thank you for your replies and efforts to locate...

Thank you for your replies and efforts to locate a radio. Such is Life. Dan
Forum: LIVE PLC Questions And Answers September 7th, 2018, 03:39 PM
Replies: 3
Views: 259
Posted By danw
Banner distributor? Looking for DX-80 RTD node radio

Looking for a 900MHz DX-80 node radio, old style or Performance, quad RTD inputs.

Any of the model versions below:

DX80N9X2S-P4 Performance, IP67 (SKU 18855 or 17448)
DX80N9X2S-P4C...
Forum: LIVE PLC Questions And Answers September 7th, 2018, 11:09 AM
Replies: 5
Views: 380
Posted By danw
I'm trying to recall if I ever traced a noise...

I'm trying to recall if I ever traced a noise issue to a DC power supply, and I can't recall one, and my experience goes back to older linear power supplies and the newer switch-mode power supplies...
Forum: LIVE PLC Questions And Answers September 6th, 2018, 04:05 PM
Replies: 5
Views: 330
Posted By danw
A man after my own heart. Totally agree.

A man after my own heart. Totally agree.
Forum: LIVE PLC Questions And Answers September 3rd, 2018, 01:52 PM
Replies: 7
Views: 297
Posted By danw
My experience is the same as diat150’s. All...

My experience is the same as diat150’s.

All the vendors offer an option for factory configuration (setting LRV/URV) or custom calibration to a specific range.

The ID tag can be stamped with...
Forum: LIVE PLC Questions And Answers August 30th, 2018, 11:45 AM
Replies: 6
Views: 401
Posted By danw
Modbus/TCP Client (Master) and server (slave) are...

Modbus/TCP Client (Master) and server (slave) are avaiable through either E1 or E2 Ethernet ports.

...
Forum: LIVE PLC Questions And Answers August 27th, 2018, 12:07 PM
Replies: 10
Views: 743
Posted By danw
Quote: Originally Posted...

Quote:
Originally Posted by AB2005 http://www.plctalk.net/qanda/images/buttons/viewpost.gif (http://www.plctalk.net/qanda/showthread.php?p=789172#post789172)
As...
Forum: LIVE PLC Questions And Answers August 26th, 2018, 04:56 PM
Replies: 3
Views: 3,699
Posted By danw
You can find information on Honeywell training...

You can find information on Honeywell training courses on their public web site



https://www.honeywellprocess.com/en-US/training/Pages/e-learning.aspx


Notice that courses are on the...
Forum: LIVE PLC Questions And Answers August 25th, 2018, 12:14 AM
Replies: 10
Views: 743
Posted By danw
A standard ”Limit-of-error” Type K thermocouple...

A standard ”Limit-of-error” Type K thermocouple has an accuracy of +/- 2.2 Deg C. ”Special Limit-of-error” reduces that to +/- 1.1 Deg C. Are your Chinese Type K’s Special Limit-of -Error?

An...
Forum: LIVE PLC Questions And Answers August 22nd, 2018, 09:44 PM
Replies: 6
Views: 401
Posted By danw
My bad. You're correct in using TCPS function...

My bad. You're correct in using TCPS function block. Slightly different setup than the RTU serial MBS FB, but the same basic concept.

...
Forum: LIVE PLC Questions And Answers August 22nd, 2018, 06:48 PM
Replies: 6
Views: 401
Posted By danw
If you are using the HC900 Modbus Slave Function...

If you are using the HC900 Modbus Slave Function Block (FB), then the HC900 is the Modbus Master/client who reads from the E&H recorder which is a Slave/server using the MBS and MBR Function Blocks. ...
Forum: LIVE PLC Questions And Answers August 21st, 2018, 10:05 PM
Replies: 3
Views: 286
Posted By danw
I assume a do cupler is a Profibus DP-DP coupler,...

I assume a do cupler is a Profibus DP-DP coupler, intended to connect two Profibus DP networks for data exchange.

What leads you to believe that a Honeywell c300 can communicate via Profibus DP?
Forum: LIVE PLC Questions And Answers August 20th, 2018, 06:00 AM
Replies: 10
Views: 743
Posted By danw
Are both thermocouples next to each other...

Are both thermocouples next to each other measuring the same physical location ?
Forum: LIVE PLC Questions And Answers August 16th, 2018, 06:37 PM
Replies: 10
Views: 346
Posted By danw
Thanks for your comments on the message count. ...

Thanks for your comments on the message count. Somehow I missed the thread title - the 1400 is slave. I thought the 1400 was the PLC master and the count made no sense. As a slave, the msg counts...
Forum: LIVE PLC Questions And Answers August 16th, 2018, 07:43 AM
Replies: 10
Views: 346
Posted By danw
I don't get the Messages Sent/Received counts. ...

I don't get the Messages Sent/Received counts. The counts appear backwards. I would expect more messages sent than received from the perspective of the master, which presumably is reporting the...
Forum: LIVE PLC Questions And Answers August 16th, 2018, 07:38 AM
Replies: 8
Views: 404
Posted By danw
First ever review of a HART MUX product,...

First ever review of a HART MUX product, anywhere. Thank you.


Does this product have a port for each transmitter or do the transmitters have to run in multidrop loop that severely limits the...
Forum: LIVE PLC Questions And Answers August 15th, 2018, 09:05 AM
Replies: 8
Views: 292
Posted By danw
Modbus/TCP and Ethernet/IP can coexist on the...

Modbus/TCP and Ethernet/IP can coexist on the same link. I've done it.



I was under the impression that Profinet requires its own connection because its deterministic nature requires solo...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 09:29 PM
Replies: 7
Views: 222
Posted By danw
>Using a pressure sensor on the 5mm coils I was...

>Using a pressure sensor on the 5mm coils I was only seeing a .2 PSI drop with one circuit blocked (50% blockage).


What's the pressure drop for a good tube?


20% of 1 PSI is 5.5" water...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 07:40 PM
Replies: 11
Views: 210
Posted By danw
>Yes we have all that Great. Bypass the...

>Yes we have all that


Great. Bypass the repaired drive.

If drive #1 (first drop on the multidrop daisy chain) removed the wiring but keep it intact so it continues to pass Modbus messages to...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 07:24 PM
Replies: 10
Views: 349
Posted By danw
Good luck finding published information on...

Good luck finding published information on 'upstream disturbance error' for any flow device.


There's an IEEE paper, but one pays to read it.


https://ieeexplore.ieee.org/document/7053301/n
...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 06:37 PM
Replies: 11
Views: 210
Posted By danw
I missed Steve's reply while typing. ...

I missed Steve's reply while typing.

Typically, VFD drives are a Modbus slave/server, so the PLC is likely to be the Modbus master/client.

The manner in which Modbus works is
master polls...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 06:18 PM
Replies: 7
Views: 222
Posted By danw
Differential pressure is not a bad idea. A...

Differential pressure is not a bad idea.

A 'standard' tube should drop some pressure due to the small tube size. Any increase in DP would indicate an obstruction. Any decrease and you probably...
Forum: LIVE PLC Questions And Answers August 14th, 2018, 06:02 PM
Replies: 10
Views: 349
Posted By danw
The AFG and the VGS Velocogrid both use averaging...

The AFG and the VGS Velocogrid both use averaging pitot tubes for volumetric air flow measurement (CFM). I have seen the use of two crossed lots of times, I was unaware of the VGS matrix until you...
Showing results 1 to 25 of 500

 
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