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RS Components Ltd- UK£614.32Visit shop WAGO 750 Series Series Logic Controller, 18 → 31.2 V dc Supply
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This WAGO PLC Base Unit (750-891) is designed for industrial automation professionals seeking a robust controller for MODBUS TCP networks. Its key benefit is its modularity and dual Ethernet ports for flexible network integration, with a potential caveat being its DC power requirement. This 4th generation controller offers 4000 kByte RAM, supports MODBUS and other bus systems, and features a compact design for rail mounting.
| Brand | WAGO |
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The WAGO PLC Base Unit 750-891 requires a DC supply voltage between 18 and 31.2 V dc.
This controller features two Ethernet ports, supporting industrial Ethernet connectivity.
No, the base unit itself does not have integrated digital or analog I/O. These must be added via separate WAGO 750 Series I/O modules.
This controller is typically programmed using CODESYS or other compatible IEC 61131-3 development environments.
Yes, it supports MODBUS TCP and other bus systems. Specific protocol support beyond MODBUS TCP usually depends on the additional communication modules installed in the 750 Series system.
The controller has a memory size of 4000 kByte (RAM).
Yes, the unit is designed for rail mounting and fits standard DIN rails.
Verify the DC power supply voltage is within the 18-31.2 V dc range and that connections are secure. Check the power supply unit itself for faults.
Check physical Ethernet cable connections. Ensure IP addresses are correctly configured and unique within their respective networks. Verify network switch functionality and port status.
Review the PLC program for logic errors. Check the status indicators on the base unit and connected modules for fault codes. Ensure all necessary modules are properly seated and configured.
Confirm that the MODBUS TCP protocol is enabled and correctly configured in the PLC program. Verify that the client and server IP addresses, ports, and slave IDs are matched and correctly set.
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