Batch Controller RA33 Technical data
Endress+Hauser 55
10.0.3 Terminal assignment
Electrical connection (circuit
diagrams)
a0014120
Fig. 35: Terminal assignment of RA33.
Supply voltage • Niederspannungsnetzteil: 100…230 V AC (-15% / +10%) 50/60 Hz
• Kleinspannungsnetzteil:
24 V DC (-50% / +75%)
24 V AC (±50%) 50/60 Hz
Für die Netzleitung ist ein Überstromschutzorgan (Nennstrom ≤ 10 A) erforderlich.
Power consumption 15 VA
10.0.4 Communication interfaces
A USB interface (with CDI protocol), and optionally Ethernet, are used to configure the device and
read out the values. ModBus is optionally available as a communication interface.
None of the interfaces has a modifying effect on the device in accordance with PTB Requirement
PTB-A 50.1.
USB device
Ethernet TCP/IP The Ethernet interface is optional, and cannot be combined with other optional interfaces. It is
galvanically isolated (testing voltage: 500 V). A standard patch cable (e.g. CAT5E) can be used to
connect the Ethernet interface. A special cable gland is available for this purpose which allows users
to guide pre-terminated cables through the housing. Via the Ethernet interface, the device can be
connected to office equipment using a hub or a switch.
RS232 printer interface The RS232 interface is optional, and cannot be combined with other optional interfaces.
– Connection: 3-pin plug-in terminal
– Transmission protocol: serial
– Transmission rate: 300/1200/2400/4800/9600/19200/38400/76800
RS485 – Connection: 3-pin plug-in terminal
– Transmission protocol: RTU
– Transmission rate: 2400/4800/9600/19200/38400/76800
– Parity: choose from none, even, odd
Connection: Type B socket
Specification: USB 2.0
Speed: Full speed (max. 12 MBit/sec)
Max. cable length: 3 m
Standard: 10/100 Base-T/TX (IEEE 802.3)
Socket: RJ-45
Max. cable length: 100 m
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