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BETA Measuring
Three-Phase Measuring Devices
7
KT1 39 LAN couplers
11/16
Siemens ET B1 · 10/2008
11
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Overview
A LAN coupler supports the worldwide data recall of up to 10
multicounters and E-counters over a LAN link to the Internet.
The LAN coupler is used in conjunction with multicounters and
E-counters. Up to 10 devices can be linked with a LAN coupler.
In turn, the LAN coupler is connected to a LAN.
Data communication between the LAN coupler and the PC is
implemented using the TCP/IP protocol.
The supplied software can be used to call up the measurement
data over LAN coupler and transfer it to a PC. The measurement
data are constantly stored as a text file with a time and date
stamp. This allows users to create flexible designs to their own
specific solutions (e.g. data can be prepared using MS Excel).
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Benefits
•
Integration of measuring devices in industrial or office
communication
•
Display of measurement data using the standard software
MS Excel
•
Use of existing local networks (LAN) for transmitting the
measurement data
•
TCP/IP data protocol enables a wide range of applications
•
Limit value signals with time information for all measured
values increases your plant's safety
•
Open software structure enables the implementation of customized
solutions for measured data indication and analysis
•
Worldwide communication of the measured values via LAN
•
One LAN coupler for 10 devices
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Technical specifications
7
KT1 390
Standards
EN 61010-1
Supply
•
Rated control supply voltage U
c
V AC 230
•
Operating range
× U
c
0.8 ... 1.2
•
Rated frequency
Hz 50
•
Frequency ranges
Hz 45 ... 65
•
Rated power dissipation P
v
VA 5
Function
•
System start
Automatic when the control supply voltage is switched on
•
LAN coupler identification
Over the IP address
•
Device identification
By means of the device number
•
Transmission rate
Mbit/s 100
RS 485 interface for connection of measuring devices
•
Line
Version
STP (shielded twisted pair)
-
Minimum cross-section
mm
2
2
× 0.2/AWG 24
-
Maximum line capacity
pF/m < 50
-
Impedance
W 100
-
Maximum overall cable length
m 1800
-
Type of installation
Parallel connection
Safety acc. to EN 61010-1
•
Degree of pollution
2
•
Overvoltage category
II
•
Operating voltage category
V 600
•
Material
II
•
Clearances
mm 3
•
Creepage distances
-
In device
mm 4.3
-
On printed boards, not installed
mm 3
•
Test pulse voltage
1.2/50
s
kV 4
•
Test voltage
50
Hz, 1 min
kV 2.2
Terminals
± screw (Pozidriv)
1
•
Conductor cross-sections
-
Rigid, maximum
mm
2
1
× 2.5 or 2 × 1.5
-
Flexible, with end sleeve, minimum
mm
2
1
× 0.75
Ambient conditions
•
Ambient temperature
In operation
°C 0 ... +55
•
Relative humidity
In operation
% 80
•
Vibration
Sinus amplitude at 50 Hz mm ± 0.25
•
Degree of protection
Acc. to EN 60529
IP20, with connected conductors
•
Safety class
Acc. to EN 61010-1
II
Software requirements for PCs
•
Operating system
MS Windows 2000, Windows XP or Windows Vista
•
Software for communication
.
net Framework V1.1 (included in delivery)
•
Software for visualization
MS Excel, version 6 or higher
MS Excel macro for the display of data (included in delivery)
© Siemens AG 2008