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The M-2004 is a digital temperature sensor module that provides four ports for 2- or 3 wire DS18B20 digital temperature sensor input.
The DS18B20 temperature sensor has a high accuracy of ±0.5°C when measuring temperatures between -10 and + 85°C, with a total measurement range of between -55 and +125°C.
Up to 20 DS18B20 sensors can be connected to each port on the M-2004 module in a daisy-chain arrangement with a maximum wiring distance of 100 meters. The M-2004 module is fully RoHS compliant, and features 4 kV ESD protection as well as 3000 VDC intra-module isolation.
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| Intra-module Isolation | 3000 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | 1 x Power and Communication |
| Temperature Measurement | |
|---|---|
| Range | -55 °C to +125 °C |
| Analog Input | |
|---|---|
| Ports | 4 |
| Sensor Type | DS18B20 |
| Sensors per Ports | 20 |
| Sensor Wiring Cables Length | Max. 100 m per Port |
| Resolution | 12-bit |
| Accuracy | ±0.5 °C (See Note 1) |
| Sampling Rate | 1 Hz |
| COM Ports | |
|---|---|
| Ports | 1 x RS-485 |
| Baud Rate | 1200 to 115200 bps |
| Data Format | (N, 8, 1) (N, 8, 2) (E, 8, 1) (O, 8, 1) |
| Protocol | Modbus RTU, DCON |
| Bias Resistor | 1k Ω (DIP switch selectable) |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Input Range | +10 ~ +48 VDC |
| Consumption | 0.5 W |
| Mechanical | |
|---|---|
| Dimensions (mm) | 33 x 117 x 88 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 ~ 95% RH, Non-condensing |
The M-2004 is a digital temperature sensor module that provides four ports for 2- or 3 wire DS18B20 digital temperature sensor input.
The DS18B20 temperature sensor has a high accuracy of ±0.5°C when measuring temperatures between -10 and + 85°C, with a total measurement range of between -55 and +125°C.
Up to 20 DS18B20 sensors can be connected to each port on the M-2004 module in a daisy-chain arrangement with a maximum wiring distance of 100 meters. The M-2004 module is fully RoHS compliant, and features 4 kV ESD protection as well as 3000 VDC intra-module isolation.
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| Intra-module Isolation | 3000 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | 1 x Power and Communication |
| Temperature Measurement | |
|---|---|
| Range | -55 °C to +125 °C |
| Analog Input | |
|---|---|
| Ports | 4 |
| Sensor Type | DS18B20 |
| Sensors per Ports | 20 |
| Sensor Wiring Cables Length | Max. 100 m per Port |
| Resolution | 12-bit |
| Accuracy | ±0.5 °C (See Note 1) |
| Sampling Rate | 1 Hz |
| COM Ports | |
|---|---|
| Ports | 1 x RS-485 |
| Baud Rate | 1200 to 115200 bps |
| Data Format | (N, 8, 1) (N, 8, 2) (E, 8, 1) (O, 8, 1) |
| Protocol | Modbus RTU, DCON |
| Bias Resistor | 1k Ω (DIP switch selectable) |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Input Range | +10 ~ +48 VDC |
| Consumption | 0.5 W |
| Mechanical | |
|---|---|
| Dimensions (mm) | 33 x 117 x 88 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 ~ 95% RH, Non-condensing |
