
© Siemens AG 2017. All rights reserved
C79000-G8976-C477-01, 12/2017
1
SIMATIC Ident
RFID systems
SIMATIC RF645T
Compact Operating Instructions
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The
notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage
have no safety alert symbol. These notices shown below are graded according to the degree of danger.
indicates that death or severe personal injury will result if proper precautions are not taken.
indicates that death or severe personal injury may result if proper precautions are not taken.
indicates that minor personal injury can result if proper precautions are not taken.
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of
injury to persons with a safety alert symbol may also include a warning relating to property damage.
The product/system described in this documentation may be operated only by
for the specific task in accordance with
the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their
training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products
and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage,
installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any
problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed.

SIMATIC RF645T
2 C79000-G8976-C477-01, 12/2017
SIMATIC RF645T is a passive and maintenance-free on-metal data storage medium. It is specially designed for mounting
directly on metal surfaces. It operates based on UHF Class 1 Gen 2 technology and is used to save the "Electronic Product
Code" (EPC) up to 448 bits. The transponder also has 2048 bits of user memory.
Application The areas of application are industrial asset
management, RF identification of tools, contain-
ers and metallic equipment.
According to ISO 18000-63
User memory: 256 bytes / 2048 bits
Installation For mounting directly on metal surfaces
1)
Depending on the environment, the employed reader / the antennas and the configured power
Mounting cover for SIMATIC RF645T
Retaining bracket for SIMATIC RF645T
The SIMATIC RF645T is available in the following form:
● Minimum order quantity: 20 transponders / 1 package
The mounting cover for SIMATIC RF645T is supplied in the following form:
● Minimum order quantity: 20 mounting covers / 1 package
The retaining bracket for SIMATIC RF645T is supplied in the following form:
● Minimum order quantity: 20 retaining brackets / 1 package

SIMATIC RF645T
C79000-G8976-C477-01, 12/2017
3
Table 3-1 Chemical resistance - ABS (acrylonitrile/butadiene/styrene)
Hot water (hydrolysis resistance)
Explanation of the rating
○ Conditionally resistant
Table 4-1 Read range between RF600 antennas and SIMATIC RF645T 1)
Ranges with max. reader performance (e.g. RF680R/RF685R) and mounting of the transponder on a metal base sur-
face of at least 15 cm x 15 cm
The write ranges amount to 60% of the specified read ranges.
Siemens Distributor

SIMATIC RF645T
4 C79000-G8976-C477-01, 12/2017
Table 5-1 Technical specifications of SIMATIC RF645T
Operating frequency (broadband)
• ETSI • 865 MHz to 868 MHz
• FCC, CMIIT and others • 902 MHz to 928 MHz
EPC • 56 bytes / 448 bits
Number of write cycles (< 40 °C)
Number of read cycles (< 40 °C)
Data retention time (< 40 °C)
Read range (on the metallic support)
EPCglobal Class 1 Gen 2 / ISO 18000-63
Transmission speed ≤ 320 kbps
Polarization Linear (long side = polarization axis)
Mechanical specifications

SIMATIC RF645T
C79000-G8976-C477-01, 12/2017
5
Permitted ambient conditions
In operation, during write/read access
• In operation, outside write/read access • -40 °C to +85 °C
• During transportation and storage • -40 °C to +85 °C
For mounting directly on metal
Shock according to DIN EN 60721-3-7
Vibrations according to EN 60068-2-6 2)
Resistance to mechanical stress
Design, dimensions and weight
52 (±0.5) × 36 (±0.5) × 12.5 mm
Depending on the environment
2)
The values for shock and vibration are maximum values and must not be applied continuously.
Certificates and approvals
Table 6-1 Certificates and approvals
Conformity with the RED directive 2014/53/EU
Conformity with the RoHS directive 2011/65/EU
Federal Communications
Passive labels and transponders comply with the valid regulations; certification is not
required.
Siemens Distributor

SIMATIC RF645T
6 C79000-G8976-C477-01, 12/2017
Figure 7-1 Dimension drawing of SIMATIC RF645T
Retaining bracket for SIMATIC RF645T
Figure 7-2 Dimension drawing mounting cover (6GT2898-5AA00) for SIMATIC RF645T

SIMATIC RF645T
C79000-G8976-C477-01, 12/2017
7
Figure 7-3 Dimension drawing (6GT2898-5AB00) for SIMATIC RF645T
Trademarks
All names identified by ® are registered trademarks of
emaining trademarks in this publication may be trademarks whose
use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the
hardware and software described. Since variance cannot
be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regular
necessary corrections are included in subsequent editions.
Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Siemens Distributor