Hello friends, may be i have a stupid question
I have a plc simatic 300 ( cpu 315 whitout DP port) whith ethernet port. The supervision is Intouch 9.5 ( dassidirect driver )
My plc is I/O full ( only 3 digital input free) and is'nt possible to add a new card.
I need to add only one 4-20 mA input ( level measure ) and read this value on the supervision. No logic into PLC
Exist for example a simple card or any other device to read 4-20 mA signal and directly read this device from intouch via Ethernet or RS232 or .... ?
Anyone have a suggest for me ?
Thank you to all in advance
PLC_ITA
[?]: intouch and read only one new tag
Re: [?]: intouch and read only one new tag
There is possibilities to use your PC like a Profibus Master and to connect for example ET200S with AI module there...
http://support.automation.siemens.com/W ... n/29645558
Of course is not so cheap...
http://support.automation.siemens.com/W ... n/29645558
Of course is not so cheap...
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Re: [?]: intouch and read only one new tag
I don't know if it is too late, here I made a search http://www.wayjun.cn/ProductShow.asp?Id=253 , this is a chinese product, be able to convert 4-20ma to 485 which might help.