Features:
- The RF685R CMIIT reader combines one integrated UHF antenna with one external antenna connection.
- Industrial Ethernet services and RS422 provide separate network and communications-module paths.
- Four digital inputs and four digital outputs support control signals independently of RFID data traffic.
The CMIIT configuration fixes the radio band and antenna settings that distinguish this RF685R order number from regional variants.
Two M12 Ethernet connectors allow the reader to join a line topology while the RP-TNC port remains dedicated to the external RF antenna.
The enclosure can be attached through VESA 100, top-hat rail or Siemens profile-rail hardware to suit the documented mounting arrangement.
Apter Power assists with pricing and access to official manufacturer documentation for Siemens 6GT2811-6CA10-2AA0 SIMATIC RF600 RF685R CMIIT RFID Reader.
Siemens 6GT2811-6CA10-2AA0 SIMATIC RF600 RF685R CMIIT RFID Reader Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
How the CMIIT reader handles UHF tags
- Regional Band: The CMIIT version communicates only within the documented 920–925 MHz range.
- Tag Standards: EPCglobal Class 1 Gen 2 V2 and the identified ISO/IEC air-interface standards define transponder exchange.
- Multiple Tags: The reader can process more than one visible transponder during an inventory cycle.
- Polarization Choice: The integrated antenna supports selectable polarization behavior for the planned reading field.
Routes available for identification data
- PROFINET Route: The Ethernet ports connect the reader directly to a PROFINET automation network.
- EtherNet/IP Route: The same network interface set supports EtherNet/IP communication where that protocol is selected.
- OPC UA Route: The integrated server exposes reader information to an OPC UA client without using the RS422 line.
- RS422 Route: The serial connection is reserved for a communications-module path distinct from Ethernet services.
Building the RF field around the reader
- Integrated Path: The housing antenna provides the first reading field without an external coaxial connection.
- External Path: An RP-TNC port accepts one additional RF600 antenna for a second reading position.
- Cable Boundary: The documented RF cable range applies to the external path and must be included in link planning.
- Mounting Alignment: VESA and rail mounting choices affect the mechanical orientation used for the selected antenna polarization.
Keeping control signals separate from tag traffic
- Input Group: Four digital inputs bring external control states into the reader through the 12-pin M12 connector.
- Output Group: Four digital outputs return reader-controlled states through that dedicated I/O connection.
- Connector Separation: RFID Ethernet, RS422 and discrete I/O use different M12 interfaces, reducing the risk of cross-connection.
- Cold Start: When the ambient temperature is below -20 °C, the specified warm-up time precedes normal reading operation.