DAM-4402 is an 8-channel data acquisition module

summarize

DAM-4402 is an 8-channel thermistor collection product with 16-bit effective resolution A/D and 3000V voltage separation between the input channel, communication and module. The photoelectric isolation of the RS485 communication port and the AD mode port can prevent the die block from being damaged when it is hit by high pressure. The layered supported standard MODBUS-RTU protocol should be used for all types of industrial field combinations and automatization systems. 2. Basic information Power supply voltage 10-30VDC Signal channel 8-channel input range PT100 Accuracy ±0.1% 16-bit effective resolution 24-bit A/D chip sampling rate 10 sampling points/second (total) isolation communication isolation, input isolation protection level Isolation voltage 3000VDC ±15KV ESD protection Lightning protection surge protection Communication The physical layer is RS485 interface Application layer supports standard MODBUS-RTU Maximum rated voltage ±30V Isolation voltage 3000V Power <1.2W Ambient temperature -10 to 70 ° C Humidity 5 to 95%RH Dimensions 124*72*45mm (including terminal and guide rail) Installation method Standard 35mmU guide rail installation or suspension installation.

Module Configuration mode Default communication parameters of the module: Communication address (ID) :

1; Baud rate: 9600; Verify: None Default module upload data format: Temperature value upload (can be changed to AD value upload) To modify module communication parameters and upload data format, enter configuration mode.

I) If the module is not powered on, flip the switch on the side of the module to INIT. After the module is powered on again, it enters the configuration mode.

II) In configuration mode, connect the test software and modify the Settings in module configuration;

III) After the configuration is complete, power off the module and set the toggle switch to NORMAL. That is, the configuration is complete, and the new communication parameters and uploaded data format take effect.

Pilot lamp

1). When the indicator is steady on, the module is powered on.

2). The indicator is blinking, and the module is communicating with data.

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