[?]: C7 623 analog input onboard problem

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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manus_a
Posts: 11
Joined: Tue Sep 14, 2010 3:16 am

[?]: C7 623 analog input onboard problem

Post by manus_a » Thu Nov 18, 2010 3:57 pm

dear expert
analog value always = 32767
HW config. are 4...20 mA
wiring connection same in manual
thank for your help

Umencho
Posts: 508
Joined: Mon Jul 16, 2007 12:28 pm
Location: Europe

Re: [?]: C7 623 analog input onboard problem

Post by Umencho » Thu Nov 18, 2010 5:38 pm

hello,

Did you measure the current there with multimeter?

BR

manus_a
Posts: 11
Joined: Tue Sep 14, 2010 3:16 am

Re: [?]: C7 623 analog input onboard problem

Post by manus_a » Fri Nov 19, 2010 5:18 pm

Hi, Umencho
I measure the current from transmitter = 4.6 mA
and I try to another channel it not work ( AI 4 channel on board )
thank for your reply

manus_a
Posts: 11
Joined: Tue Sep 14, 2010 3:16 am

Re: [?]: C7 623 analog input onboard problem

Post by manus_a » Tue Nov 23, 2010 3:07 pm

Hi, Umencho
thank for your help.
now i replace C7 623 to C7 635key,
and working well , I can read analog
thank.