The Modbus module in an IP65 housing with 4 digital inputs and 2 relay outputs 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 can be used as contact or voltage inputs. 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 by means of two address switches.
Resources
Specifications
General Data | Protocol | Modbus RTU |
| Address range | 00 to 99 |
| Bus interface | RS485 (two-wire bus) |
| Transmission rate | 1200 to 115200 bit/s |
| Operating voltage | 24 V AC/DC +/- 10% (SELV) |
| Current consumption | 200 mA (AC) / 75 mA (DC) |
| Relative duty cycle | 100 % |
| Inputs | 4 x digital |
| Input / voltage | 30 V DC |
| Input / high signal | more than 8 V AC/DC |
| Output / contacts | 2 changeover contacts (DPDT) |
| Output / switching voltage | 250 V AC |
| Output / continuous current (UL) | 8 A / output |
| Output / continuous current (VDE) | 10 A / output |
| Output / switch-on current | 80 A (less than 20 ms) |
| Display | Green, red and yellow LED |
| Dimensions (W x H x D) | 160 x 40 x 120 mm |
| Weight | 350 g |
| Operating temperature range | -5 °C to +55 °C |
| Storage temperature range | -20 °C to +70 °C |
| Ingress protection for housing / terminal blocks | IP65 / IP20 |
