Siemens DTU3005-B Betreibershandbuch PDF herunterladen (Seite 6)

1 Introduction

2 Siemens Energy & Automation, Inc.

1.4.1 PLC to SEAbus

The basic configuration is a PLC attached to port 1 of

the DTU3005, and the Siemens ACCESS devices

attached to port 2. This is shown below in Figure 1.2.

Port 3 can be configured as a passthrough to the SEA-

bus devices. This allows a personal computer running

Siemens WinPM™ or other supervisory software to

connect directly to the SEAbus devices at the same

time as the PLC. This is shown in Figure 1.3. An addi-

tional DTU3005 device can be attached to port 3. Up to

32 DTU3005 devices can be daisy chained together,

each connected to up to 32 Siemens devices. This is

shown in Figure 1.4.

Figure 1.2 PLC to SEAbus Application

Figure 1.3 PLC to SEAbus with Passthrough

Figure 1.4 Daisy Chained DTU3005 Units

1 2 3

DTU3005B

Up to 32

ACCESS Devices

Supported PLC

Acting as a

master transferring

data to PLC.

RS-485

123

DTU3005B

WinPM

Up to 32

ACCESS Devices

Supported PLC

Acting as a

master transferring

data to PLC.

RS-232

RS-485

1 2 3 4 5 6 7 8 9 10 11 ... 140 141

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Siemens DTU3005-B Betreibershandbuch Seite 6