ZLAN ZLAN5443A User manual

1
ZLAN5443A
Serial Device Server
User Manual
4 ports RS232/485/422
To TCP/IP converter
CopyRight©2008 Shanghai ZLAN Information Technology Co., Ltd. All right
reserved
Document DI: ZL DUI 20150413.1.0

2
CopyRight©2008 Shanghai ZLAN Information Technology Co., Ltd. All right reserved
Version Information
The History of the revision to this document:
History
Date
Version
Document ID
Revising content
2015-4-13
Rev.1
ZL DUI 20150413.1.0
Release
Copyright information
Information in this document is subject to change without notice. It is against the law to copy
the document on any medium except as specifically allowed in the license or nondisclosure
agreement. The purchaser may make one copy of the document for backup purposes. No
part of this manual may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, or through information storage and retrieval
systems, for any purpose other than for the purchaser’s personal use, without the express
written permission of Shanghai ZLAN information Technology Co., Ltd.

3
Contents
1. Summary...................................................................................................................................... 4
2. Technical parameter.................................................................................................................. 5
3. Installation size........................................................................................................................... 6
4. Hardware description................................................................................................................ 6
5. Usage ............................................................................................................................................ 9
6. Modbus TCP Gateway............................................................................................................. 10
7. Cascade approach................................................................................................................... 12
8. 485 character............................................................................................................................. 12
9. After-service and technical support.................................................................................... 12

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
4
1. Summary
ZLAN5443A is new generation of 4 ports serial device server developed by Shanghai
ZLAN. Compared with ZLAN5400A, ZLAN5443A is more cost-effective as it use the third
generation hardware technology, and ZLAN5443A support Modbus TCP to Modbus RTU
Gateway function. Modbus Gateway support multi Modbus clients connecting and read
data at the same time, as “multi-host” function.
ZLAN5442A support 4 RS232 serial ports, 4 RS422/485 ports, realize 4 ports
simultaneous full-duplex working by connecting to ZLAN5443A via a cable. It’s the ideal
choice of multi-serial ports networking.
ZLAN5443A support extending to 8/12/16 ports through cascade Ethernet port, up to 32
serial ports.
Figure 1 ZLAN5443A

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
5
Feature:
1) The 4 serial ports all support 3 serial forms: RS232, RS485, RS422.
2) The 4 serial ports can independently full-duplex working, no interference between
each other.
3) Support extension function, can extending up to 32 serial ports.
4) Rich signal lights, each port has self TCP connecting indicator and data activity
indicator.
5) Support power supply via cable ----POE power supply
2. Technical parameter
Interface:
RS232, RS485, RS422
Power Supply:
5.5mm, Inside positive outside negative, standard outlet
Size:
L x W x H = 9.2cm×19.7cm×2.5cm
Communicate Interface
Ethernet:
10M/100M, 2KV surge protection
Serial
RS232/485/422×4：RXD，TXD，GND，CTS，RTS，DTR，DCR
Serial Parameters
Baud rate:
1200~115200bps
Parity:
None, Odd, Even, Mark, Space
Data size:
5~9
Flow control:
RTS/CTS，DTR/DCR, NONE
Software
protocol:
ETHERNET、IP、TCP、UDP、HTTP、ARP、ICMP、DHCP、DNS
Setting method :
ZLVirCom, WEB browser, device management library
Net communication method:
Socket, Virtual serial , device management library
Work Mode
TCP server, TCP client, UDP, Real Com Driver
Power

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
6
Power:
9～24V DC
Environment
Running temperature:
-40~85℃
Storage temp:
-65~165℃
Humidity:
5~95%RH
3. Installation size
Figure 2 ZLAN5443A Installation Size
4. Hardware description
The front view of ZLAN5443A is shown as FIG. 3.

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
7
Figure 3 ZLAN5443A Front View
1) Size: L x W x H =9.2cm×19.7cm×2.5cm
2) Power supply: the standard power adaptor (5.5mm inner core is positive) or power
binding post can be used. The power supply voltage can be 9 ~ 24V and the power
requirement is greater than 5W.
3) Ethernet Port:
a) Normal Ethernet Port: the user connects ZLAN5443A to the switch, hub, or
directly to the computer network card.
b) Cascade Ethernet Port: for cascade of ZLAN5443A, refer to the description of
the cascade part in this document.
c) POE power supply: pin 5 (GND) and pin 8 (VCC) of the normal RJ45 Ethernet
port can be used to supplypower to ZLAN5443A, and the power supply voltage is
between 9 ~ 24V. RJ45 network line sequence refers to figure 4.

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
8
Figure 4 Network Line Sequence
4) Indicator:
a) Data forwarding indicator ACT: ACT light indicates that data is normally
transmitted between Ethernet and corresponding serial port, without data
communication, ACT light is not bright.
b) TCP connection establishing indicator LINK: LINK light indicates that the
current TCP connection of serial port is established, and the data can be sent and
received normally.
c) Power indicator PWR: indicates that the serial port server has already been
charged.
d) Network indicator NET: indicates that the network line has been connected.
5) Serial port:
a) 485/422 serial port: when used as 485, only 2 lines are connected to it, and 4
wires should be connected when used as 422. The line sequence is shown in FIG.
3.
Table 1 RS422 Wiring Method

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
9
Item
422 line of ZLAN5443A
Connection line corresponding to user RS422
1
485-,T-
R-
2
485+,T+
R+
3
R+
T+
4
R-
T-
b) 232 serial port: standard DB9 PIN-type interface.
Table 2 RS232 Wiring
Item
Name
Instruction
2
RXD
receiving pin of the serial device server
3
TXD
sending pin of the serial device server
4
DTR
After the flow control in using, the serial device server will accept the
data of the serial device when the pin is 0.
5
GND
Ground wire
6
DCR
After the flow control in using, the serial device server will send the data
to the serial device when the pin is 0.
7
RTS
After the flow control in using, the serial device server will accept the
data of the serial device when the pin is 0.
8
CTS
After the flow control in using, the serial device server will send the data
to the serial device when the pin is 0.
5. Usage
ZLVircom is installed to manage the device.
Charging to ZLAN5443A, network wire connects to the normal Ethernet port of
ZLAN5443A. Then using the “Device Manage” of ZLVircom software can see the interface
shown in FIG. 5.

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
10
Figure 5 ZLAN5443A searched by ZLVircom
The 4 lines in this line correspond to the four serial ports in ZLAN5443A, and the
corresponding IP address of ZLAN5443A is 192.168.1.200 ~ 192.168.1.203 in factory
setting. The usage of a single serial port please refers to the <User Guide of Networking
Products> file http://www.zlmcu.com/download/serial_server_user_manual.pdf.
6. Modbus TCP Gateway
ZLAN5443A supports the function of Modbus TCP to Modbus RTU (Modbus Gateway
function). The Modbus Gateway supports reading data on multiple Modbus Client
connections, known as "multiple hosts".
Identify Gateway function: click "Device Manage" on the main interface of ZLVircom
software, search the device, select the device, and click "Edit Device". The parameter
settings dialog box that popup is shown as FIG. 6.

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
11
Figure 6 Modbus Gateway Function Identification
If the small box on the left side of the "Modbus TCP to RTU" function is already hooked, it
supports the Modbus Gateway function.
Start Modbus Gateway: by default, Modbus Gateway is in normal transparent
transmission mode. If you need to convert to Modbus Gateway mode, select
"Modbus_TCP Protocol" option in "Transfer Protocol". The device then automatically
changes the "Port" parameter to 502 (the port of the Modbus server).
If you are an ordinary Modbus server, modify the "Work Mode" to the TCP server mode. If
as a Modbus client modifying to the TCP client, and the server IP as the destination IP, the
destination port is generally 502.
General ZLAN5443A is used as a Modbus server so that the PC software can realize the
communication with RTU device just connecting to the IP address of any port of
ZLAN5443Aand reading and writing registers.
If the serial port is the main station of RTU, 5443Aconnects to a Modbus TCP server, just
change the working mode to TCP Client. In addition, the RS485 bus idle is best reduced
to about 5ms in this working mode, which is entering "More Advanced Settings" to set and

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
12
can see the RS485 bus idle.
7. Cascade approach
ZLAN5443A support cascade, which enables ZLAN5443A to be easily extended to 8, 12
and 16 ports converters. It is more convenient to project rebuilding and upgrade.
When do cascade, connect the cascade Ethernet port(Uplink RJ45) of upper level
ZLAN5443A to the normal port(RJ45) of the lower level ZLAN5443A via the
manufacturer's cascade network line (actually a shorter parallel network line). The
cascade steps can be continuously carried out at a maximum of level 8.
By default, ZLAN5443A requires power supply per level. If you need to supply power
through a cascade line, you need to customize it.
Figure 7 ZLAN5443A Cascade Method
8. 485 character
ZLAN5103 meet the RS485 standard, each ZLAN5103 can be with 32 terminal 485
devices. The maximum communication distance is 1200 meter, the resistance of 485
terminal is 120 ohms, usually must use terminal resistance when wiring over 300m. Pay
attention to the wiring, 485+ and 485- must be a twisted-pair, in order to reduce signal
interference.
9. After-service and technical support

Shanghai ZLAN Information Technology Co., Ltd Tel: [phone] http://www.zlmcu.com
13
Shanghai ZLAN Information Technology Co., Ltd.
Address: 12 floor, D building, No. 80 CaoBao road, Xuhui District, Shanghai, China
Phone: [phone]
Fax: [phone]
Web: http://www.zlmcu.com
Email: [e-mail]