modport:md-adin4:index
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modport:md-adin4:index [2023/04/28 18:04] COMFILE Technology [Specification] |
modport:md-adin4:index [2023/05/31 04:34] (current) COMFILE Technology [4-Channel Analog to Digital Input Module: MD-ADIN4] |
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| - | ====== MD-ADIN4 ( AD Input Module ) ====== | + | ====== 4-Channel Analog to Digital Input Module: MD-ADIN4 ====== |
| - | ^Output Value ^Resolution ^Precision ^Conversion Speed^ | ||
| - | |0 ~ 10,000 |13.30bit| ±0.1% |30ms per channel| | ||
| The AD Input Modules can be wired to read voltage sources or current sources. | The AD Input Modules can be wired to read voltage sources or current sources. | ||
| - | {{ :modport:md-adin4:md-adin4.png?700 |}} | + | {{ :modport:md-adin4:md-adin4.png?600 |}} |
| 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 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. | ||
| Line 17: | Line 15: | ||
| ===== Specification ===== | ===== Specification ===== | ||
| - | ^Item ^Description^ | + | ^ Item ^ Description ^ |
| - | |Operating Temperature |-10 ~ 50 (no condensation)| | + | | Channels | 4 | |
| - | |Operating Humidity|35 ~ 85%RH| | + | | Operating Temperature | -10 ~ 50 (no condensation) | |
| - | |Input Resistance |20K ohms| | + | | Operating Humidity | 35 ~ 85%RH | |
| - | |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)| | + | | Input Resistance | 20K ohms | |
| - | |Communication Method |RS485| | + | | Input Voltage Range | 1~5V mode: 0.5 ~ 5.5V (Single-ended) \\ 0~10V mode: -0.5 ~ 10.5V (Single-ended) | |
| - | |Packet Transmission |3ms| | + | | Output Value | 0 ~ 10,000 | |
| - | |Isolation Method |No Isolation | | + | | Resolution | 13.3-bit | |
| + | | Precision | ±0.1% | | ||
| + | | Conversion Speed | 30ms per channel | | ||
| + | | Communication Method | RS485 | | ||
| + | | Packet Transmission | 3ms | | ||
| + | | Isolation Method | No Isolation | | ||
| - | The AD Input Modules' inputs are not isolated, so please be sure to not provide voltage or current in excess of the specified ranges. Doing so could cause permanent damage. | + | |
| + | |||
| + | |||
| + | **Important**: The AD Input Modules' inputs are not isolated, so please be sure to not provide voltage or current in excess of the specified ranges. Doing so could cause permanent damage. | ||
| When the system is first powered on, all four channels are scanned once. Reading at this time will return an | When the system is first powered on, all four channels are scanned once. Reading at this time will return an | ||
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| This module has built in low pass filter and noise canceling circuitry. Since the A/D pins are not | This module has built in low pass filter and noise canceling circuitry. Since the A/D pins are not | ||
| exposed, the user is not expected to design additional circuitry. | exposed, the user is not expected to design additional circuitry. | ||
| + | |||
| + | ===== Output Values ===== | ||
| + | |||
| + | The value returned from the MD-ADIN can be interpreted with the following algorithm: | ||
| + | <code C> | ||
| + | unsigned short rawData = 0; // Raw 16-bit value from the MD-ADIN | ||
| + | int value = rawData; | ||
| + | if ((rawData & 0x8000) != 0) // If most significant bit is set | ||
| + | { | ||
| + | value = (rawData - 0x8000) * -1; | ||
| + | } | ||
| + | if (value == -11111) | ||
| + | { | ||
| + | // Value is below the lower bound (e.g. below 1V when 1-5V mode is selected). | ||
| + | } | ||
| + | else if (value == 22222) | ||
| + | { | ||
| + | // Value is above the upper bound. (e.g. above 5V when 1-5V mode is selected). | ||
| + | } | ||
| + | else | ||
| + | { | ||
| + | // Value is between 0 and 10,000 | ||
| + | } | ||
| + | </code> | ||
| ===== Modbus Starting Address ===== | ===== Modbus Starting Address ===== | ||
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| ^Channel ^0 ^1 ^2 ^3 ^ | ^Channel ^0 ^1 ^2 ^3 ^ | ||
| |Starting Address(base 10) | 100 | 101 | 102 | 103 | | |Starting Address(base 10) | 100 | 101 | 102 | 103 | | ||
| - | |Starting Address(base 16) | 64 | 65 | 66 | 67 | | + | |Starting Address(base 16) | 64 | 65 | 66 | 67 | |
| - | |Address (base 10) used by HMI (SCADA) | 00101 | 00102 | 00103 | 00104 | | + | |Address (base 10) used by HMI (SCADA) | 40101 | 40102 | 40103 | 40104 | |
| ===== Module ID (Modbus Slave Address) Assignment ===== | ===== Module ID (Modbus Slave Address) Assignment ===== | ||
| Line 46: | Line 76: | ||
| Rotary switch position 0 corresponds to Modbus slave address 10. If the ID is changed after the module is powered on, it must be power cycled for the new ID to take effect. | Rotary switch position 0 corresponds to Modbus slave address 10. If the ID is changed after the module is powered on, it must be power cycled for the new ID to take effect. | ||
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| + | [[modport:index|MODPORT]] | ||
modport/md-adin4/index.1682672666.txt.gz · Last modified: 2023/04/28 18:04 by COMFILE Technology