The LM3313 is an 8-channel standard analog input acquisition module. It is another masterpiece of the LM3403, the Ethernet expansion module of the G3 small PLC main push product. At the same time, this is also the first domestic application on a small PLC. Channel standard analog signal acquisition module. When selecting the type, the user is not limited to the 4-channel analog input module LM3310, which provides a better choice for users with more standard analog input channels and higher system space requirements. The use of the LM3313 will greatly reduce the user's system cost.
The LM3313 module is used to collect voltage signals from -10V to +10V or current signals from -20mA to +20mA. The field is separated from the digital part of the system, the channels are not isolated, and the isolation withstand voltage is 1000VDC. The input accuracy is 0.5%@FS.
When the LM3313 module is used with PowerPro software, the user can selectively set whether the channel is enabled through software. For channels that are not enabled, the module does not collect. In the sampling accuracy setting, the user can increase the accuracy by setting the filtering time. The user can also set the dead zone. When the change of the two sample values ​​exceeds the dead zone value, the current sample value will be directly set to the latest value without filtering.
The introduction of the LM3313 enriches the HOLLiAS-CLEC G3 series PLC analog types. At present, the small-scale integrated PLC can provide users with analog expansion modules including: 4-channel analog input module LM3310, 8-channel analog input module LM3313, 4-channel thermocouple input module LM3311, 4-channel RTD input module The LM3312, 8-channel thermistor input module LM3314, 2-channel analog output module LM3320, etc., can receive various types of signals such as current, voltage, thermocouple, RTD and thermistor.
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