Modbus to 4-20mA Output
DAT3022
The DAT3022 Modbus to Analog Output Converter is a 2-channel module designed to convert Modbus commands into current or voltage signals. It is ideal for applications where digital Modbus RTU/ASCII control needs to drive analog devices such as actuators, indicators, or control loops.
Each output channel can be configured as 4–20 mA, 0–20 mA, or 0–10 V, providing flexibility for integration into a wide variety of control systems. The outputs are galvanically isolated from the Modbus communication line and the power supply, ensuring safe and reliable operation in industrial environments.
The slew rate is adjustable, allowing users to fine-tune the response time of the analog output to match system requirements. In addition to Modbus RTU over RS-485, the DAT3022 is also available in an RS-232 Modbus ASCII version for serial communication.
| INPUT | OUTPUT | POWER SUPPLY |
|---|---|---|
| Modbus RS232 | 4-20 MA | Power Supply Voltage 18-30Vdc |
| 0-10 Volts | Reverse polarity protection 60Vdc | |
| CURRENT CONSUMPTION | CONFIGURATION | ISOLATION |
| Between 30 and 100 mA | PC Programmable | Between Input/Comms/Power Supply 1500Vac. |
| EMC | HOUSING | TEMPERATURE |
| For Industrial environments | Material self-extinguishing | Operating Temperature 14°F +140°F -10°C +60°C |
| Immunity EN 61000-6-2 | Dimensions W x H x T 4" x 4 3/4" x 3/4" | Storage Temperature -40°F +185°F-40°C +85°C |
| Emission EN 6100-6-4 | 100 x 120 x 22.5 mm | Humidity (non condensing) 0-90% |
| Weight 3 oz 90 g | ||
| EMC | HOUSING | TEMPERATURE |
| For Industrial environments | Material self-extinguishing | Operating Temperature 14°F +140°F -10°C +60°C |
| Immunity EN 61000-6-2 | Dimensions W x H x T 4.1/4" x 4 1/2" x 2 1/4" | Storage Temperature -40°F +185°F-40°C +85°C |
| Emission EN 6100-6-4 | 106 x 112x x 57 mm | Humidity (non condensing) 0-90% |
| Weight 7 oz 200 g |
| Output: | 2 Channels |
| mA | 0-20mA , 4-20mA. |
| Voltage | 0-10Volt |
| Communication: | |
| Modbus | RS485 |
| Power Supply: | 10 - 30 Vdc. Reverse polarity protection 60 Vdc. |
| Current Consumption: | 30 mA. |
| Temperature rating: | Operative Temperature -4°F +140°F -20°C +60°C Storage Temperature -40°F +185°F -40°C +85°C. |
| Humidity: | (not condensing) 0-90%. |
| Housing: | Material self-extinguishing. |
| Dimensions: | W x L x H 3 3/4X 3 1/2 X 1 7/8 inch, 90 x 74 x 48mm. |
| Weight: | 7 oz 200 g. |
| EMC. | For industrial environments. |
| Immunity: | EN 61000-6-2. |
| Emission: | EN 61000-6-4. |
| Isolation: | Between Modbus Master, Slave/Power supply 1500Vac, 50Hz, 1 Minute. |
| Configuration: | PC Configurable. |
| Output | |
| Passive | |
| Current Output 0 | Positive 1 Negative 4 |
| Current Output 1 | Positive 5 Negative 8 |
| Active | |
| Current Output 0 | Positive 1 Negative 2 |
| Current Output 1 | Positive 5 Negative 6 |
| Voltage Output 0 | Positive 3 Negative 4 |
| Voltage Output 1 | Positive 7 Negative 8 |
| Power Supply (18-30Vdc). | Positive J Negative I. |
| RS 485 Slave | Positive (D+)B Negative (D-) A GND C |
| RS-232D | C GND |
| E RX | |
| F TX | |
| Init | Pin D Init Gnd C |
