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MR-DI4-IP65 Modbus RTU, with external display

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.

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 (internal) Green, red and yellow LED
Display (external) multi color LED
Connection display (external) 2x RJ45
Dimensions (W x H x D) 159 x 41,5 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 block IP20 / IP20

Technical Data 

  • P/N110834131901IP
    Feature 14x IN (U or contact)
    Feature 2


pdf Data sheet 110834131901IP 211.96 KB
pdf Instruction 110834131901IP 1.41 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