Brooks 5850 S, Installation And Operation Manual

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18
Installation and Operation Manual
X-DPT-Profibus-DP-Interface-eng
PN 541-C-068-AAG
November, 2008
3.2.5 Profibus connector (MF series)
The Profibus-DP electronics is hooked up via a separate M12 connector on top
of the device. This connector has IP65 protection rate and is defined in the
Profibus guideline 2.142: Interconnection Technology Sepecifictions. This
allows for the use of standards available, Profibus approved network
connectors, enabling fast and easy connection of a Profibus network
Figure 3-4
below shows the pin numbering. The connector provides the four
mandatory signals as defined in the EN 50170, i.e. RxD/TxD-P, RxD/TxD-N,
VP and DGND. The Profibus signals are galvanic isolated from the main
electronics. The fith connector terminal is the shieldings.
Screw Profibus Function Color
connector connector
pinning
1 1 P5V Brown
2 2 A-lin Green
3 3 Gnd Blue
4 4 B-line Red
5 5 Shield Grey
3.3 STATION ADDRESS SELECTION
In order for a Profibus network master device to be able to address individual
slave devices on the netowork, a slave device will require the assignment of a
unique communication address or station address. This must be done prior to
being connected to the network. The slave address can be 126 at maximum
since 127 is the Global Station Address.
On the Profibus interface piggyback for the Brooks Smart TMF devices, the
station address selection is implemented by two rotary switches, located on
the side of the device (location of the valve), refer to Figure 3-5 below. Each of
the switches allow a setting of an integer number, the units between 0 and 9
and the decimals 0 and 12. The decimal address digit indicates the multiples of
ten, whereas the unit address digit indicates the multiples of one. Therefore the
allowable station address number ranges from 0 to 126.
The decimal switch has a labelling from 0 through F, which is hexadecimal. The
letters A through F respresents 10 through 15. The letter D, E and F are not
allowed since they represent addresses in the range 130, 140 and 150, which
is outside the Profibus range of 126. If the total address selection is 126 or
higher, the slave address is 126.
5800 series
MF series
profibus
↓
Figure 3-5: Smart Mass Flow Meter/Controller - Profibus connection
Figure 3-4: Pinnumbering