1, 2,
●
Transparent for all protocols, which the data format is compatible with the above specifications of Current Loop interface eg
MODBUS,
●
Integrated protocols converter MODBUS-TCP to MODBUS-RTU/ASCII (MODBUS Data Gateway),
●
Operating in modes: MODBUS-RTU Master/Slave and MODBUS-ASCII Master/Slave,
●
Power supply 10 - 30 VDC stable min. 3W,
●
~ 3000V= optoizolation in signal channel between ETHERNET and Current Loop interfaces,
●
1000V= or 3000V= galvanic isolation between ETHERNET interface and power supply - depends on version,
●
1000V= or 3000V= galvanic isolation between Current Loop interface and power supply - depends on version,
●
Connection Current Loop interface via screw terminal block,
●
Implemented short circuit protection and over-voltage protection on Current Loop lines,
●
Protection against power supply reverse connection,
●
DIN 43880 standard - mounting in typical electro-installation unit,
●
Rail mounting according to DIN35 / TS35 standard,
●
Dimensions (W x D x H) 53mm x 62mm x 90mm.
2.2. DESCRIPTION
ADA-13021MG converter is used for data transmission between devices equipped with Current Loop interface via LAN/WAN network.
In the ETHERNET network converter can operate in Virtual Serial Port mode, TCP serial bridge mode, UDP serial bridge mode, TCP
sockets, UDP sockets, MODBUS Data Gateway. The MODBUS Data Gateway converts MODBUS-RTU master/slave and MODBUS-
ASCII master/slave protocol to MODBUS-TCP and inversely. This allows for integrate MODBUS-RTU/ASCII with MODBUS-TCP
devices within one network.
Can be configured and managed via Internet browser – converter has implemented WWW server. ADA-13021MG has plug-in screw
terminal block for connecting the Current Loop interface and power supply and RJ45 modular connector for ETHERNET network
connection. The converter transmits data via Current Loop interface with maximum baud rate up to 38,4 kbps and uses signals
RX+,RX-,TX+,TX- of CL interface.
To Current Loop line based on ADA-13021MG can be connected in point-to-point topology devices operate in half duplex or full duplex
mode. This converter has internal, low energy surge protection for each Current Loop lines however it is recommended to use the
external lightning arresters (typical protection of telephone line) for the lightning protection of lines. Has galvanic isolation between
power supply and Ethernet interface and Current Loop and optoisolation between Current Loop and Ethernet interfaces.
The converter is adapted for powering from the regular voltage external source which value should contain from 10V to 30V.
We provide with converter the drivers which installed in the operating systems (Windows 98ME,2000,XP,2003,Vista,7, 8.x, 10 ; Linux),
will create an additional COM/TTY port. This port is the next free number eg COM3, can be used like a standard COM port.
Fig. 1. ADA-13021 view
Fig. 2. ETHERNET & power connectors
2.3. ETHERNET NETWORK COMMUNICATION
2.3.1. TCP/UDP SOCKED MODE COMMUNICATIONS
Communication in the mode TCP/UDP sockets allows an application SCADA, MMI e.t.c., to transfer data to the serial port of the
converter via Ethernet network by the use of client and server TCP/UDP services.
5
ADA-13021MG
62mm
ACT
LINK
(ETH)
RST
V
+
V
-
10 – 30
VDC
53mm
1
0m
m
1
0m
m
Current Loop interface
9
0
m
m
Network activity
transmitting / receiving
Connection activity
8
1
-
+
ETHERNET interface
RJ45 connector
Power supply
10-24-30 VDC
(CURRENT LOOP)
T
x
-
I1
-
I2
-
R
x
-
I2
+
R
x
+
T
x
+
I1
+
ADA-13021MG
CURRENT LOOP to ETHERNET
CONVERTER with MODBUS GATEWAY
PWR
TX
RX
CL
