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MR-DI4 Modbus RTU

The Modbus module with 4 digital inputs was developed for decentralized switching tasks. It is suitable for detecting potential-free switch states, for example electrical limit switches on vent valves or auxiliary contacts of power contactors. 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 on the front or by software.Suitable for decentralized mounting on DIN TH35 rail according to IEC 60715 in electrical distribution cabinets.

Protocol Modbus RTU
Address range 00 to 99
Bus interface RS485 (two-wire bus)
Transmission rate 1200 to 115200 bit/s
Operating voltage range 20 V to 28 V AC/DC (SELV)
Current consumption 50 mA (AC) / 20 mA (DC)
Relative duty cycle 100 %
Inputs 4 x digital
Input / voltage 30 V DC
Input / high signal more than 7 V AC/DC
Display Green, red and yellow LED
Dimensions (W x H x D) 35 x 70 x 65 mm
Weight 95 g
Operating temperature range -5 °C to +55 °C
Storage temperature range -20 °C to +70 °C
Ingress protection for housing / terminal block IP40 / IP20

Technical Data 

  • P/N1108341319
    Feature 14x IN (U or contact)
    Feature 2


pdf Data sheet 1108341319 235.33 KB
pdf Instruction 1108341319 1.81 MB
pdf Modbus software manual 698.96 KB
pdf Produktuebersicht C|Logline 899905-05 EN 3.55 MB
zip Modbus Configuration Tool V1.20 746.87 KB
last update on Tuesday, 6. September 2016 - 4:30