Page 1/4 Data sheet Part number MR-AI8 11083213 Modbus module with analog inputs 2016-11-15 Illustrations Principle diagram Wiring Open Energy Management Equipment 34TZ Use copper conductors only Product description The Modbus module with 8 individually configurable The inputs can be configured universally by means of resistance or voltage inputs was developed for decentralized standard registers via a Modbus master. Module address, switching tasks. bit rate and parity are set by means of two address switches on the front or by software. It is suitable for detecting resistances and voltages of, for example, passive and active temperature sensors, electrical Suitable for decentralized mounting on DIN TH35 rail vent and mixing valves, valve positions, etc. according to IEC 60715 in electrical distribution cabinets. METZ CONNECT GmbH Im Tal 2 78176 Blumberg Germany Ph. +49 7702 533-0 Fax +49 7702 533-433 Additional documentation see www.metz-connect.com 2016 METZ CONNECT - Subject to modifications Page 2/4 Data sheet Part number MR-AI8 11083213 Modbus module with analog inputs 2016-11-15 Technical data Approvals C-UL Certification Open Energy Management Equipment 34TZ Modbus interface Protocol Modbus RTU Address 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 Supply Operating voltage 24 V AC/DC 10 % (SELV) Current consumption 65 mA (AC) / 25 mA (DC) Relative duty cycle 100 % Input Analog inputs 8, configurable Resistance range 40 Ohm to 4 MOhm Voltage input 0 to 10 V DC Resolution 15 bit Error Voltage input 10 mV Resistance input <12 kOhm 0.1 % 12 kOhm 1 % Housing Dimensions WxHxD 1.969 x 2.728 x 2.362 in. (50 x 69.3 x 60 mm) Weight 104 g Mounting position any Mounting on TH35 rail per IEC 60715 Side-by-side mounting Without space The maximum quantity of Modbus modules connected side-by-side is limited to 15 or to a maximum power consumption of 2 Amps (AC or DC) per connection to the power supply. For any similar block of additional modules a separate connection to the power supply is necessary. Material Housing polyamide 6.6 V0 Terminal blocks polyamide 6.6 V0 Cover plate polycarbonate Type of protection (IEC 60529) Housing IP40 Terminal blocks IP20 METZ CONNECT GmbH Im Tal 2 78176 Blumberg Germany Ph. +49 7702 533-0 Fax +49 7702 533-433 Additional documentation see www.metz-connect.com 2016 METZ CONNECT - Subject to modifications