WAGO 750-891

Controller Modbus TCP; 4th Generation; 2 x ETHERNET

Technical Data

• Communication: Modbus (TCP, UDP)
• Ethernet protocol: SNMP
• Visualization: Web-Visu
• CPU: 32 bits
• Programming languages per IEC 61131-3: Sequential Function Chart (SFC)
• Programming environment: WAGO-I/O-<i>PRO</i> V2.3 (based on CODESYS V2.3)
• Configuration options: CODESYS Library
• Baud rate (communication/fieldbus 1): 10/100 Mbit/s
• Baud rate: 10/100 Mbit/s
• Transmission medium (communication/fieldbus): Twisted Pair S-UTP; 100 Cat. 5; Line length (max.): 100 m
• Transmission performance: Class D acc. to EN 50173
• Program memory: 4 MB
• Data memory: 4 MB
• Software non-volatile memory: 32 kB
• Number of modules per node max.: 250
• Number of I/O modules without bus extension max.: 64
• Input and output process image (Fieldbus) max.: 1020 Worte/1020 Worte
• Indicators: LED (LINK/ACT) green: Network connection Port 1 ˜ 2; LED (MS, NS) red/green: Status of node, network; LED (I/O, USR) red/green/orange: Internal data bus status, status programmable by user; LED (A, B) green: System power supply status, field supply
• System supply voltage: DC 24 V(-25 ˜ +30 %); via wiring level (CAGE CLAMP^® connection)
• Input current typ. at rated load (24 V): 500 mA
• Efficiency of the power supply (typ.) at nominal load (24 V): 90 %
• Current consumption, system supply (5 V): 390 mA
• Total current for system supply: 1700 mA
• Field supply voltage: DC 24 V (-25 ˜ +30 %); via power jumper contacts
• Current carrying capacity of the power jumper contacts: 10 A
• Number of outgoing power jumper contacts: 3
• Isolation: 500 V system/supply

Connection Data

• Connection technology: communication/fieldbus: Modbus TCP/UDP: 2 x RJ-45; 2 x RJ-45
• Connection technology: system supply: 2 x CAGE CLAMP^®
• Connection technology: field supply: 6 x CAGE CLAMP^®
• Connection type (1): System/field supply
• Solid conductor: 0.08 ˜ 2.5 mm² / 28 ˜ 14 AWG
• Fine-stranded conductor: 0.08 ˜ 2.5 mm² / 28 ˜ 14 AWG
• Strip length: 8 ˜ 9 mm / 0.31 ˜ 0.35 inch
• Connection technology: Device configuration: 1 x 4-pole male connector

Geometrical Data

• Width: 61.5 mm / 2.421 inch
• Height: 71.9 mm / 2.831 inch
• Height from upper-edge of DIN-35 rail: 64.7 mm / 2.547 inch
• Depth: 100 mm / 3.937 inch

Mechanical Data

• Weight: 149.900 g
• Color: light gray
• Housing material: Polycarbonate, polyamide 6.6
• Conformity marking: CE

Environmental Requirements

• Surrounding air (operating) temperature: 0 ˜ 55 °C
• Surrounding air (storage) temperature: -40 ˜ 85 °C
• Protection class: IP20
• Degree of pollution (5): 2 per IEC 61131-2
• Operating altitude: without temperature derating: 0 ˜ 2000 m; with temperature derating: 2000 ˜ 5000 m (0.5 K/100 m); max.: 5000 m
• Relative air humidity (no condensation): 95 %
• Mounting position: any
• Type of mounting: DIN-35 rail
• Vibration resistance: 4g per IEC 60068-2-6
• Shock resistance: 15g per IEC 60068-2-27
• EMC immunity to interference: acc. to EN 61000-6-2, marine applications
• EMC emission of interference: acc. to EN 61000-6-3, marine applications
• Exposure to pollutants: Per IEC 60068-2-42 and IEC 60068-2-43
• Fire load: 0.000 MJ
• Permissible H₂S contaminant concentration at a relative humidity <lt/> 75 %: 10 ppm
• Permissible SO₂ contaminant concentration at a relative humidity <lt/> 75 %: 25 ppm

Commercial data

• Packaging type: BOX
• Country of origin: DE
• GTIN: 4055143821513
• Customs Tariff No.: 85371091990

The WAGO Gen.4 PLC CPU unit (750 series) is a versatile controller featuring a 32-bit processor, capable of handling 250 connections per node and 64 field devices. It supports Modbus TCP and Ethernet communication, operates on a supply voltage of 18-31.2Vdc (24Vdc nominal), and includes 2 RJ45 connectors for fieldbus and a CAGE CLAMP 2-pin system connector. Designed for DIN-35 rail mounting with a width of 61.5mm, it is rated for ambient temperatures between 0°C and +55°C. This unit, with an IP20 rating, replaces the obsolete 750-881 component and is equivalent to the 750891 model.