8 Channel Current Analog Input Safety Module SIL 2

8 Channel Current Analog Input Safety Module SIL 2


UW5912S 8 Channel Current Analog Input Safety Module SIL 2 from China UWNTEK factory implements data conversion, comprehensive diagnosis, digital filtering, linear correction, engineering conversion, safe voting and other functions of 8-channel 4~20mA analog input signals, achieving high reliability, high availability, high security, Strong adaptability design.


The system automatically identifies the module type and enables plug-and-play;

The 8 Channel Current Analog Input Safety Module SIL 2 adopts 1oo1D architecture and can support 1oo2D architecture through redundant configuration;

The channel adopts independent ADC chip sampling, which has the characteristics of high precision and high stability;

Complete electrical isolation between the module and the system, completely shutting out external interference;

PhotoMos switch switches scanning channels, and channels are isolated from each other. When a channel fails, it will not affect the normal operation of other channels;

Supports signal program-controlled amplification, data conversion, channel input diagnosis, digital filtering, linear correction, engineering conversion and other functions;

The 8 Channel Current Analog Input Safety Module SIL 2 is used for safety loops and has relatively complete module fault diagnosis functions, including power supply circuit over- and under-voltage diagnosis, channel fault diagnosis, ADC fault diagnosis, main crystal oscillator diagnosis and other hardware diagnostic functions, as well as CPU diagnosis (general register diagnosis, stack pointer diagnosis, Software diagnostic functions such as RAM diagnosis, Flash diagnosis, etc.), interrupt diagnosis, communication diagnosis, peripheral driver diagnosis, etc.;

When a module diagnoses a fault, the system quickly responds with safety actions corresponding to the fault to ensure production safety.

Technical Parameters:

parameter name Technical indicators
Channel configuration 8
Analog input 4~20mA
Analog sampling ±0.1%F.S
Common mode rejection ≥110dB
Series mode interference ≥60dB
Isolation impedance ≥20MΩ@500V
Security system capabilities SC2
security integrity SIL2
safety accuracy ±2%F. S
Safety circuit failure diagnosis Open circuit, short circuit, transmitter failure
redundancy mechanism Hot standby 1:1 redundancy (optional), supports hot swap
EMC electromagnetic and EN61326-3-1 (ESD/RS/EFT/SURGE/CS/DIP/CE/RE), Level 3a
capacitive 118mm×32mm×112mm
Module size 1W
Power consumption -20℃~70. C
Operating temperature UW5971S 4-unit input and output terminal block

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