Elpro Technologies 245U-E Instrukcja Użytkownika Pobierz pdf (Strona 3)

945U-E

System Design Advantages

Client

WDS and Self Heal Mesh

(Site Outage)

LAN A

LAN B

Modbus slave

Data Logger

(Automatic

IP address

via DHCP)

Field

Devices

RS232

LAN

RS485

(Modbus Master)

Client

(Modbus Slaves)

WDS, Modbus Master - Slave, DHCP

Modbus

slave I/O A

Modbus

slave I/O B

The 945U-E range is feature rich allowing end users to create complex, reliable

engineering solutions for process and automation systems.

Access Point Repeating and Serial Server

System advantages of the 945U-E range includes serial

client /server /multicast (RJ-45 to simultaneous RS232/485)

connections with online diagnostics and conﬁguration

capability. The units can provide standalone Modbus Master-

Slave functionality within the network and additional modules

are readily added to the system with DHCP automatic IP

addressing capability.

In the diagram top right, the LAN is connected serially to the

ﬁeld devices via an AP using serial server capability. A Modbus

Master AP also polls Modbus slave I/O (A -> B).

Access Point Repeating with Self Healing of Network

Using WDS (AP-AP) and Spanning Tree (self-healing) features

of the 945U-E allows distance linkage in bridge /router modes

and preservation of system communications in the event of a

site outage.

In the diagram bottom right, LAN’s A and B are connected by

the middle AP. Loss of power (site outage) to the middle AP

creates a communications failure but trafﬁc is automatically

diverted through redundant AP modem to LAN B.

245U-E-G 245U-E-A 945U-E 240U-E 905U-E 805U-E

Frequency 2.412 - 2.472GHz 5.18 - 5.825GHz

(1)

902-928MHz

(1)

2.412 - 2.462GHz 902 - 928MHz

(1)

869MHz

(1)

Modulation 802.11b/g 802.11a 802.11 g 802.11b 802.11-FHSS 802.11- FF

(4)

TX Power 15 - 400mW

(2)

15 - 400mW

(2)

15 - 630mW 100 /300mW 100mW - 1W

(2)

10,100 - 500mW

(3)

Data Rate 108Mbps 108Mbps 54Mbps 11Mbps 200Kbps 72Kbps

WDS (AP-AP) Yes Yes Yes Yes No No

Self Heal

(Spanning Tree)

Yes Yes Yes Yes Yes Yes

Serial Client /Server /Multicast Yes Yes Yes Yes Yes Yes

Encryption Security Level

(Maximum level highlighted)

WPA2 /802.11i WPA2 /802.11i WPA2/802.11i WPA - PSK (TKIP

/ AES 128 bit)

128 bit AES

Encryption

128 bit AES

Encryption

MAC / IP Filtering Yes Yes Yes Yes Yes Yes

Network Function AP /Client

Bridge /Router

AP /Client

Bridge /Router

AP /Client

Bridge /Router

AP /Client

Bridge /Router

AP /Client

Bridge /Router

AP /Client

Bridge /Router

Online Diagnostics Yes Yes Yes Yes Yes Yes

Online Conﬁguration Yes Yes Yes Yes Yes Yes

Footnote:

(1) Frequency availability - country regulatory dependant.

(2) Conﬁgurable TX Power option available - country regulations apply.

(3) Model dependant relative to regulatory guidelines.

(4) Fixed Frequency (FF).

Product comparison and ordering guide (includes existing 240U-E, 245U-E and 905/805U-E products)

945U-E

System Design Advantages

The 945U-E range is feature rich allowing end users to create complex, reliable

engineering solutions for process and automation systems.

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