| Question |
Posted |
Author |
Replies |
Last Post |
|
Wed Sep 15th, 2010 0:38 p.m. |
|
0 |
|
Hi There,
I have a simple 4-20ma curcuit. Sensor - Cable - LCD display. I would like to remove the cable and use some type of wireless system to transmit the data from the sensor to the LCD. It must be dc powered - 1.5-9v at the sensor end and 1.5-18v at the LCD end. Range of about 30-50m. Does anyone have any ideas. I saw some of the phoenix stuff, but it looks to big and the voltage / current requirements are a worry.
If also at the sensor end there could be the abilty to switch on a relay from a signal generated at the LCD end, that would be great.
Thanks in advance.
Cheers, ben |
 |
|
Mon Jun 14th, 2010 1:46 p.m. |
|
7 |
| Thu Jun 24th, 2010 0:55 p.m. |
| Tech M |
|
Need help regarding the communication problem that I faced when I used PXR9 for pooling PV data from computer.
I received wrong temp data (PV) when I tried to pool the data from PXR (replication from other station PV data
in e.g:
- In display: Station1(30F),Station2(40F),Station3(50F),Station4(60F),Station5(70F),Station6(80F),Station7(90F)
- When I tried to pool the data, from the station1, the result is 90F, which is the temp that display in
station7, and etc. |
|
|
Tue Nov 11th, 2008 9:47 a.m. |
|
2 |
| Wed Nov 12th, 2008 1:34 a.m. |
| Kevin Leong |
|
May I know this two modem models are compatible?
USR815630D & USR815631A.
Because model:5630D seems like obsoleted in the market,I want to find a substitute.
Tks Fred! |
|
|
Wed Feb 20th, 2008 2:44 p.m. |
|
1 |
| Wed Feb 20th, 2008 5:09 p.m. |
| Tech M |
|
Hi there,
I would like to know the difference between an RS485 communication function and an RS232 ? What is the advantage of using RS485?
Thank you in advance for your time
Fred |
|
