VigneshGunasekaran
Member
Hi
My PLC control panel is supply with 24 VDC, its quiet common.
I am using Analog outputs which is configured to 4 to 20 ma. I can also measure 4 to 20 ma by forcing various values to analog output channel.
But the problem is when i measure the voltgae across the thse 4 to 20 ma terminal i getting 30V, how can it be possible, then i check the power supply it is measuring 24V only. I restarted the panel, later i measure it showing 24V.
I am in doubt why this happened before and why not again after restarting power supply and what is the normal voltage across these 4 to 20 ma terminal, its 24V right?
My PLC control panel is supply with 24 VDC, its quiet common.
I am using Analog outputs which is configured to 4 to 20 ma. I can also measure 4 to 20 ma by forcing various values to analog output channel.
But the problem is when i measure the voltgae across the thse 4 to 20 ma terminal i getting 30V, how can it be possible, then i check the power supply it is measuring 24V only. I restarted the panel, later i measure it showing 24V.
I am in doubt why this happened before and why not again after restarting power supply and what is the normal voltage across these 4 to 20 ma terminal, its 24V right?