Network couplers for UE20 I/O
UE20-RTU-EC and UE20-RTU-PN connect a modular I/O station to EtherCAT or PROFINET respectively. Each supports up to 32 expansion modules and 1024 bytes of process data. Two RJ45 ports provide the network connection, while spring terminals handle power wiring.
| Characteristic | UE20-RTU-EC | UE20-RTU-PN |
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| Protocol | EtherCAT | PROFINET |
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| Network ports | 2 × RJ45, with switch function | 2 × RJ45 |
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| Ethernet interface rate | 10/100Mbps, full duplex | 10/100Mbps, full duplex |
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| Transmission distance | 100m | 100m |
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| Process data capacity | 1024 bytes | 1024 bytes |
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| Expansion modules | Up to 32 | Up to 32 |
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| Address mapping | Supported | Supported |
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| Address setting | EtherCAT specification | PROFINET specification |
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| Transmission medium | Category 5 twisted-pair cable | Category 5 twisted-pair cable |
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| Isolation | Electrical isolation | Electrical isolation |
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PROFINET functions
| Characteristic | UE20-RTU-PN |
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| Communication functions | RT; conformance Class C; MRP |
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| Network setup | Automatic addressing and topology detection |
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| Alarms | Diagnostic, process and connector insertion/removal alarms |
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| Minimum cycle time | 1ms |
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System and load power
The 24V input supply, 5V system distribution and 24V load distribution have separate electrical ratings. Check both distribution-current limits when selecting the expansion modules and connected loads.
| Characteristic | Both models |
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| Operating input voltage | 24V DC, +20%/-15% |
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| System supply current | <200mA |
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| System distribution voltage | 5V DC |
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| System distribution current | 2A maximum |
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| Load distribution voltage | 24V DC, +20%/-15% |
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| Load distribution current | 5A maximum |
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Wiring and installation
| Characteristic | Both models |
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| Power connection | Spring terminal blocks |
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| Conductor cross-section | 0.2-2.5mm² |
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| AWG conductor range | AWG28-AWG14 |
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| Stripping length | 8-9mm |
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| Height × width × depth | 100mm × 48mm × 69mm |
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| Mounting | 35mm DIN rail |
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| Ingress protection | IP20 |
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| Operating temperature | -10°C to +55°C |
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| Storage temperature | -20°C to +85°C |
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| Relative humidity | 5-95%RH, non-condensing |
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