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moacon:rs-adin4:index

RS-ADIN4, RS-HADIN4 Analog Input Module

The AD Input Modules can be wired to read voltage sources or current sources. When reading voltages sources, the modules can be configured for a 0 ~ 10V range or a 1 ~ 5V range using the dipswitch on the side of the module. When reading a current source (4-20mA), connect a 250ohm resister across the input terminals.

Module Name Output Value Resolution Precision Conversion Speed
RS-ADIN4 0 ~ 10,000 13.3-bit +/-0.1% 30ms per channel
RS-HADIN4 0 ~ 100,000 16.6-bit +/-0.1% 240ms per channel

The input voltage range can be adjusted using dipswitch #2. Dipswitch #1 is not used.

Dipswitch #2 ON 0 ~ 10V
Dipswitch #2 OFF 1 ~ 5V

RS-ADIN4, RS-HADIN4 Specifications
Operating Temperature -10 ~ 50 oC (no condensation)
Operating Humidity 35 ~ 85%RH
Input Resistance 590Kohm
Input Voltage Range 1~5V mode: 0.5 ~ 5.5V (Damage may occur if used in excess of this range)
0~10V mode: -0.5 ~ 10.5V (Damage may occur if used in excess of this range)
Communication Method RS-485
Packet Transmission 3ms
Isolation Method No Isolation

AD Input Module's Sampling Frequency

The RS-ADIN4's sampling frequency is 30ms per channel, so sampling all 4 channels will take 120ms. Therefore, it is unnecessary to perform call getAdc faster than 120ms, as it will always return the same value.

The getAdc function call takes approximately 3ms.

The RS-HADIN4's sampling frequency is 240ms per channel, so sampling all 4 channels will take approximately 960ms. Therefore, it is also unnecessary to call getHadc at a rate greater than 960ms, as it too will always return the same value.

When the system is first powered on, all four channels are scanned once. Calling getAdc or getHadc at this time will return an invalid value. When using the RS-ADIN4 module, please allow at least 120 ms from the time the system is powered on before calling getAdc. Similarly, when using the RS-HADIN4 module, please allow at least 960ms from the time the system is powered on before calling getHadc.

Installing AIO Modules

The AIO (Analog Input & Output) modules can be installed in any slot on either the 10-slot main board or the 5-slot expansion board, except the CPU slot.

moacon/rs-adin4/index.txt · Last modified: 2017/02/15 23:26 by COMFILE Technology