4-20 over fiber 14-15 bit resolution

V0N_hydro

Member
Join Date
Sep 2010
Location
lower mainland
Posts
560
Hi

I need to do a 4-20 mA analog over single mode fiber and also need 14 or 15 bit DAC. Any suggestions?

Currently thinking schneider m221 PLC with analog input and a ethernet to fibre media converter or simple unmanaged switch with fibre port.
 
Last edited:
What's on the other end?

How about a Schneider STB I/O island? NIP + PDT + 2 channel analog input is maybe a little bit more than an M221, but less programming required.

Would take up less space than a 221 at least.
 
Beckhoff

Analog input side:
EK1501-0010 Ethercat slave FXSinglemode
EL3121 analog input 16bit 4-20mA
EL9011 end module

Scada side:
CX8190 PLC with ethernet
EK1521-0010 EtherCat master FXSinglemode
EL4122 Analog output 16bit 4-20mA
EL9011 End module
 
reading a value over modbus tcp works as well and saves having the fibre to 4-20mA converter at the PLC end (plus digital-analog-digital conversion), so it looks like the schneider M221 with a TM3AI2HG and N-tron 105FX ethernet switch with single mode fibre port might be the selection.

for 4-20mA to modbus with 15 or 16 bit DAC I have also found

https://www.dghcorp.com/datasheets/D7000_Data_Sheet.pdf

https://www.acromag.com/catalog/102...o-modules/analog-io/busworks-xt-series/xt1210

http://www.advantech.com/products/a...6017/mod_426ac8aa-4c77-4e4e-aed7-b41b9b387cf9

moxa IOlogik E1240

thanks all for your suggestions
 

Similar Topics

Hi everyone, I like to do my own research but I'm in pinch with time so I'm asking for help/advice: We have two additional buildings which are...
Replies
4
Views
2,501
Good afternoon. Below is the network diagram, according to which I wanted to configure supervisor on en2tr module. Stratix is in RSTP mode, due to...
Replies
4
Views
524
{Old Indramat guy here} (*) How do you 'jumper out', logically, a drive on a Kinetics 6000? For example, I have a Power Module (Node 20) and...
Replies
3
Views
1,743
Greetings, I see that some network switches are specified with 100BaseFX Fiber Ports. Can I use 10GBs rated fiber Optic cable for these...
Replies
1
Views
1,472
Hello, Is it common and good practice to utilize serial-to-fiber converters when interfacing with a legacy equipment that's only equipped with...
Replies
3
Views
2,026
Back
Top Bottom