Hi,
We have a problem with SIWAREX U PLC card 7MH4950-2AA01 connected to CPU315-2PN/DP. 2 channels connected to 2 scales in plant.
Momentarily SIWAREX U card freezes and SF goes ON and it does not read any data from loadcell and scale HMI shows no reading even if the scale hopper is full of material.
During fault LC connected to both channels read normal value: Exe+&Exe-: 6.25v, sense+&Sense-: 6.1V and Sig+&Sig-: 4.4mVdc(depending on weight)
But when power to CPU and siwarex u card is reset, it resumes normal operation and starts displaying actual weight in hopper.
Is my Siwarex u card defective ? How to determine nature of fault?
We have a problem with SIWAREX U PLC card 7MH4950-2AA01 connected to CPU315-2PN/DP. 2 channels connected to 2 scales in plant.
Momentarily SIWAREX U card freezes and SF goes ON and it does not read any data from loadcell and scale HMI shows no reading even if the scale hopper is full of material.
During fault LC connected to both channels read normal value: Exe+&Exe-: 6.25v, sense+&Sense-: 6.1V and Sig+&Sig-: 4.4mVdc(depending on weight)
But when power to CPU and siwarex u card is reset, it resumes normal operation and starts displaying actual weight in hopper.
Is my Siwarex u card defective ? How to determine nature of fault?