The Modbus module in a surface mounting housing with 4 digital inputs was developed for decentralized switching tasks. It is suitable for detecting potential-free switch states from electrical limit switches and their external status display such as fire dampers or vent valves. The inputs can be operated by means of potential-free switches or contacts or used as voltage inputs. The inputs can be scanned by means of standard registers via a Modbus master. Module address, bit rate and parity are set with two rotary switches or by software.The device has two externally connectable display modules.
Resources
| MR-DI4-IP65 Modbus RTU, with external display | 110834131901IP | View DataSheet |
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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 | 50 mA (AC) / 20 mA (DC) |
| Relative duty cycle | 100 % |
| Inputs | 4 x digital |
| Input / voltage | 30 V AC/DC |
| Input / high signal | more than 7 V AC/DC |
| Display (internal) | Green, red and yellow LED |
| Display (external) | multi color LED |
| Connection display (external) | 2x RJ45 |
| Dimensions (W x H x D) | 160 x 40.7 x 120 mm |
| Weight | 300 g |
| Operating temperature range | -5 °C to 55 °C |
| Storage temperature range | -20 °C to 70 °C |
| Ingress protection for housing / terminal blocks | IP20 / IP20 |
