The Modbus module inan IP65 housing with 4 digital inputs and 2 relay outputs with manual control was developed for decentralized switching tasks. It is suitable for accommodating, for example, light switches and window contacts in a room, switching two light strips or controlling louvers. It can also be used to control 2 motorized fire dampers. In this case it is necessary to protect the relay contacts by appropriate load-dependent measures. The inputs have to be connected to potentialfree contacts. The inputs and outputs can be switched and scanned by means of standard registers via a Modbus master. Module address, bit rate and parity are set with two rotary switches. Bit rate and parity are also set by software.
Resources
Specifications
General Data | Protocol | Modbus RTU |
| Addressing range | 00 to 99 |
| Transmission rate | 1200 to 115200 bit/s, Factory setting 19200 bit/s Even |
| Bus interface | RS485 two wire bus with potential equalization in bus or line topology terminate with 120 Ohm |
| Operating voltage | 230 V +/- 10 % |
| Current consumption | 12 mA |
| Relative duty cycle | 100 % |
| Inputs | |
| Digital inputs | 4 |
| Voltage input | 30 V AC/DC |
| High signal recognition | more than 8 V AC/DC |
| Outputs | |
| Output contacts | 2 changeover contacts (DPST) |
| Switching voltage max. | 250 V AC |
| Continuous current max. | 10 A per relay (65 A for 20 ms) max. current via terminal "11" 10 A |
| Housing | |
| Dimensions (W x H x D) | 160 x 40.7 x 120 mm |
| Weight | 350 g |
| Mounting position | any |
| Mounting | directly on a flat surface 8 knock-out openings for M12 and M16 cable glands |
| Operation | 23 °F to 131 °F (-5 °C to 55 °C) |
| Storage | -4 °F to 158 °F (-20 °C to 70 °C) |
| Type of protection (IEC 60529) | IP65 |
| Display | |
| Operating and bus activity | green LED |
| Error indication | red LED |
| Status of inputs and outputs | yellow LED's |
