Need help and explanation.

Is it possible to connect in series 2 analog inputs of 6ES7 331-7KF02-0AB0 with a 4-20 mA loop from a 'sinking' transmitter IFM TS3232?

IFM TS3232 Specs: 

I am not clear with the Siemens analog module being used in terms of its sourcing/sinking function. 

Please check attached file for diagram. 

A big question is will it work as (2) 24 volts supply in series, effective 48 volts in the loop?

I am new to Siemens PLC hardwares.

Thank you in advance for your responses.

Best Regards,

Agapito

kralcccyu

Need help and explanation.

Is it possible to connect in series 2 analog inputs of 6ES7 331-7KF02-0AB0 with a 4-20 mA loop from a 'sinking' transmitter IFM TS3232?

IFM TS3232 Specs: 

Measured signal converter for temperature sensors
for Pt100 and Pt1000 measuring elements
Analog output 4...20 mA
Measuring range: -50...300 °C / -58...572 °F
Factory setting: -50...300 °C
Electrical data
Electrical design		DC
Operating voltage [V]		20...32 DC
Protection class		III
Reverse polarity protection		yes
Outputs
Output		Analog output 4...20 mA
Output function		4...20 mA analog
Short-circuit protection		yes (non-latching)
Overload protection		yes
Analog output		4...20 mA; Rmax: 300 Ω

I am not clear with the Siemens analog module being used in terms of its sourcing/sinking function. 

Please check attached file for diagram. 

A big question is will it work as (2) 24 volts supply in series, effective 48 volts in the loop?

I am new to Siemens PLC hardwares.

Thank you in advance for your responses.

Best Regards,

Agapito

 Hi,

Take a look to the manual, if this wiring is possible you will find it on the manual.

https://support.industry.siemens.com/cs/ww/en/view/17473828

https://support.industry.siemens.com/cs/ww/en/view/18971030

Also, Be carefull it's possible to find the" same"  wiring (nearly the same) on the manual but it does not comparison with "current loop" but with "line compensation".

regard,

snoop13014

 

kralcccyu

Need help and explanation.

Is it possible to connect in series 2 analog inputs of 6ES7 331-7KF02-0AB0 with a 4-20 mA loop from a 'sinking' transmitter IFM TS3232?

IFM TS3232 Specs: 

Measured signal converter for temperature sensors
for Pt100 and Pt1000 measuring elements
Analog output 4...20 mA
Measuring range: -50...300 °C / -58...572 °F
Factory setting: -50...300 °C
Electrical data
Electrical design		DC
Operating voltage [V]		20...32 DC
Protection class		III
Reverse polarity protection		yes
Outputs
Output		Analog output 4...20 mA
Output function		4...20 mA analog
Short-circuit protection		yes (non-latching)
Overload protection		yes
Analog output		4...20 mA; Rmax: 300 Ω

I am not clear with the Siemens analog module being used in terms of its sourcing/sinking function. 

Please check attached file for diagram. 

A big question is will it work as (2) 24 volts supply in series, effective 48 volts in the loop?

I am new to Siemens PLC hardwares.

Thank you in advance for your responses.

Best Regards,

Agapito

 Hi,

Take a look to the manual, if this wiring is possible you will find it on the manual.

https://support.industry.siemens.com/cs/ww/en/view/17473828

https://support.industry.siemens.com/cs/ww/en/view/18971030

Also, Be carefull it's possible to find the" same"  wiring (nearly the same) on the manual but it does not comparison with "current loop" but with "line compensation".

regard,

 Thank you, snoop. Looking into it. I forgot to mention that what I wanted to achieve is without program intervention, I wanted to have the same 4-20 mA reading on both input terminals from the same transducer as the other one is broken.

Hello kralccvyu,

the part at this link is useful to solve your challenge

Signal duplicator - MINI MCR-2-UNI-UI-2UI-PT - 2905028

You have 1 input and to isolated outputs.

Hope this is helpful.

regards
CaOd