SIEMENS
3/334
Siemens IK PI · 2015
PROFIBUS
Industrial Identification Systems
ASM 456, SIMATIC RF160C
3
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Function
The ASM 456 and the RF160C comprise a basic module and
a connection block that must be ordered separately. When
connecting PROFIBUS, the customer can choose between
ECOFAST connections and M12, 7/8" connections.
A pre-assembled reader cable is used to connect one or two
readers/SLGs to the communication module. The standard
length of the cable is 2 m. If other cable lengths to the reader are
required, an extension cable measuring between 2 m and 50 m
can be used. The cable can also be assembled by the customer
as required.
The PROFIBUS DP procedure according to EN 50170 Vol. 2
PROFIBUS for communication between the communication
module and SIMATIC S7 (or any PROFIBUS master) and the
MOBY-specific procedures for communication between ASM
and reader are implemented on the communication modules.
The data in the transponder can be accessed as follows:
•
Direct addressing via absolute addresses
•
Conveniently via the MOBY file handler (MOBY U, RF300 only)
using file names (for ASM 456 only)
On the PROFIBUS DP, the communication module occupies a
node address on the bus that is set on the connection block. The
communication module is integrated into the hardware configu-
ration by means of a device master (GSD) file. Then the commu-
nication module can be configured by means of the software tool
HW_Config of the SIMATIC Manager or another PROFIBUS tool.
Error messages and operating states (MDS in the field, transmis-
sion, etc.) are indicated additionally by means of LEDs and sim-
plify commissioning and service.
The ASM 456 and RF160C have two reader interfaces which
also provides the readers with power. In the communication
module , the power supply of the readers has an electronic fuse.
ASM 456
The ASM directly accesses the data in the transponder or in the
data matrix code by means of absolute addresses (FB/FC45,
FB/FC55) or more conveniently using the MOBY file handler
(FC56) and file names. The communication module is operated
in non-cyclic mode over PROFIBUS DP V1. Consequently, a very
large amount of data can be transferred to/from the communica-
tion module without overloading the PROFIBUS cycle. This has
advantages when transferring large volumes of data. In addition,
the communication module can process concatenated tran-
sponder commands very quickly in this mode.
Function blocks FB101/116/132 in the SIMATIC S7 are available
for the "RFID standard profile" mode.
The data in the transpon-
der can be addressed either via absolute addresses or via the
file handler. This mode additionally integrates the communica-
tion module in SIMOTION.
SIMATIC RF160C
The data in the transponder is accessed via absolute ad-
dresses. The FC44 function block is available for SIMATIC S7 for
this purpose. The RF160C is operated in cyclic mode over
PROFIBUS DP-V0. This ensures a deterministic response in data
communication in every case. Where large volumes of data are
transferred in large-scale bus configurations, the data through-
put should be tested with a tool which is provided on the DVD
"RFID Systems, Software and Documentation". The program-
ming interface to RF160C is extremely easy to use and can be
programmed efficiently in any controller. The RF160C is there-
fore particularly suitable for use with non-Siemens controllers
and older PROFIBUS masters.
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Technical specifications
Article No.
6GT2002-0ED00
6GT2002-0EF00
Product-type designation
ASM 456 communication module
RF160C communication module
Suitability for installation
PROFIBUS matching DP-V1 in conjunction
with RF200/300/600, MOBY D/E/I/U, MV
PROFIBUS matching DP-V0 in conjunction
with RF200/300/600, MOBY D/U
Transfer rate
with PROFIBUS
9.6 kbit/s … 12 Mbit/s
9.6 kbit/s … 12 Mbit/s
Transmission rate at point-to-point
connection serial maximum
115.2 kbit/s
115.2 kbit/s
Interfaces
Design of interface for point-to-point
connection
RS422
RS422
Number of readers connectable
2
2
Design of the electrical connection
• of the PROFIBUS interface
(according to the connection block)
(according to the connection block)
• for supply voltage
(according to the connection block)
(according to the connection block)
Version of the interface to the reader
for communication
M12, 8-pin
M12, 8-pin
Mechanical data
Material
Thermoplastic (Valox 467, fiberglass reinforced)
Thermoplastic (Valox 467, fiberglass reinforced)
Color
IP Basic 714
IP Basic 714
Tightening torque of screw
for mounting the equipment maximum
3 N·m
3 N·m
© Siemens AG 2014