The QE 8DI is a Modbus RTU RS485 Slave device with 8 Digital inputs. The input, Power Supply, and the RS485 Modbus RTU communication ports are galvanically isolated from each other at 1.5 kV. The QE 8DI is configurable by the USB port or the RS485 Communication port by Java software, downloadable from the www.qeedusa.com web site. The Baud rate can be selected by DIP Switch to enable connection if the settings have been lost.
It is possible to use the T-Bus DIN rail connection, which allows multiple devices to be connected with the same power supply and Modbus RTU RS485 connection.
Input | 8 Digital Inputs | Max 30 Vdc |
Output | Modbus RTU | |
Power Supply | 10 to 40 Vdc | 19 to 28 Vac |
Current Consumption | Max 1 VA | |
Temperature Rating | Operative 5°F +149°F - 15°C +65°C | Storage Temperature - 40°F +185°F - 40°C +85°C. |
Humidity | (non condensing) 10-90% | |
Housing | Material self-extinguishing | |
Dimensions | 0.69" x 3.66 " x 2.67" | 17.5 x 93 x 68 mm |
Weight | 3 oz | 90 g |
EMC | Immunity: EN 61000-6-2. | Emission: EN 61000-6-4. |
Configuration | DIP Switch Configurable | PC Configurable |
Power Supply | |
Positive | Terminal 9 |
Negative | Terminal 10 |
Modbus Output | |
Modbus Ground | Terminal 18 |
Modbus Positive | Terminal 20 |
Modbus Negative | Terminal 19 |
Digital input 1 | Terminal I1 |
Digital input 2 | Terminal I2 |
Digital input 3 | Terminal I3 |
Digital input 4 | Terminal I4 |
Digital input 5 | Terminal I5 |
Digital input 6 | Terminal I6 |
Digital input 7 | Terminal I7 |
Digital input 8 | Terminal I8 |