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Siemens IK PI · 2015

Industrial Wireless Communication

WirelessHART

SITRANS AW200 WirelessHART adapter

■

Design

SITRANS AW200 WirelessHART Adapter consists of

• An enclosure with a fitted aerial

• Electronics

• A high-performance lithium battery unit

SITRANS AW200 Wireless-HART Adapter, assembly

The enclosure can be opened by loosening 4 screws. This

enables you to access the electronics and battery unit. The

battery unit is removed without the use of tools, since it is

connected to the housing with clips.

On the back of the enclosure is the connector with a fixing nut

onto which various different replaceable connecting pieces can

be screwed to mount the adapter straight onto a field device.

On the base of the enclosure is an optional cable inlet which can

be used for a cable gland. Up to 2 cables can be inserted for off-

set adapter installation.

■

Function

SITRANS AW200 WirelessHART Adapter. functional diagram

Measured values and diagnostic information of connected field

devices with HART communication are transmitted via a wired

connection to the WirelessHART adapter. The adapter transmits

this information in the form of wireless signals to the IE/WSN-PA

link, the Siemens WirelessHART gateway. From here, the infor-

mation is available to the network of the system.

If a field device with a 4 ... 20 mA output signal is connected to

the adapter, only the measured value will be transmitted.

Following configuration and integration into a WirelessHART net-

work, each WirelessHART adapter is able to recognize its neigh-

bors. It notes the strength of the wireless signal, synchronizes it-

self, receives network information and then establishes

connections to its neighbors in the wireless network. A Wire-

lessHART network organizes itself. Manual settings for organiza-

tion are not required.

Two and four-wire field devices can be connected to a Wire-

lessHART adapter. In the case of a connected two-wire field de-

vice, voltage can be supplied by the adapter. Where multiple

two-wire field devices are connected (multi drop operation), the

adapter must be connected to an external power supply.

The WirelessHART adapter may also be connected in parallel to

an already existing installation which consists of a power supply

and a HART field device.

1234

LED

Push button

Plug to connect battery

Battery compartment

Terminals 1 to 6

Terminal tag for HART modem

SIMATIC

system

SIMATIC ET 200

with HART support

ES OS MS

IE/WSN-

PA LINK

SITRANS

AW200

SITRANS

TF280

SITRANS

P280

DP/PA

LINK

Industrial Ethernet

PROFIBUS

Wireless

HART

PROFIBUS PA

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