Advantech ADAM-6251 Installation and operation manual

STARTUP MANUAL
1 Startup Manual
ADAM-6251
16-ch Digital Input Modbus TCP Module
Notes
For more information on this and other Advantech
products, please visit our websites at:
http://www.advantech.com
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http://www.advantech.com.tw/eservice
This startup manual is for the ADAM-6251
Part No: 2003625100 1st Edition
February 2013
Switch Settings
It mainly presents the switch conguration for Dry Contact
and Wet Contact wiring in Digital Input interface.
Switch SW1 SW2
Position 12341234
DI Channel Ch3 Ch2 Ch1 Ch0 Ch7 Ch6 Ch5 Ch4
Switch SW3 SW4
Position 12341234
DI Channel Ch11 Ch10 Ch9 Ch8 Ch15 Ch14 Ch13 Ch12
ON Dry Contact (Default)
OFF Wet Contact
Overview
Thank you for purchasing this ADAM-6200 series
module.This is a quick guide to help you deploy the
ADAM-6200 series module in your application eld. It
will include power and application wiring. If you need a
more complicated or specic installation, you could try
to contact ADVANTECH for advanced technical support
or suggestions.
Input Power Requirements
The ADAM-6200 system is designed for a standard
industrial unregulated 24 VDC power supply. For further
applications, it can also accept +10 to +30 VDC of power
input, 200mV peak to peak of power ripple, and the
immediate ripple voltage should be maintained between
+10 and +30 VDC.
Application Wiring
Isolated Digital Input
Dry Contact
Wet Contact

STARTUP MANUAL
Startup Manual 2
Daisy Chain Limitations
Here are the limitations of daisy chain connection with
auto-bypass protection enabled.
Read the following statement carefully before
installation.
In general, the maximum cabling distance of each
100BASE-TX network segment is 100 meter. Based
on this limitation, the maximum total connection length
in daisy chain wiring should also be 100m as if auto-
bypass protection active. See the following gure as
example, the distance from rst to second module is
50m, so as second to third. When the power fails on
second (middle) module, the auto-bypass will activate to
bridge the network connection. The total distance from
rst to the 3rd will become 100m, that means the total
network segment is close to limitation.
Furthermore, for the reason of signal transmission
characteristics, the continuous auto-bypass node should
be less than 2, so that the network communication in
daisy chain wiring is workable.
The purpose of the auto-bypass protection is to help user
minimize the damage situation of module power outage.
Note that when a power outage occurs on ADAM-
6200 modules, there exists around 2.5 seconds buffer
time for internally switching to auto-pass circuit.That
means Ethernet packets can’t reach the other devices
by daisy-chaining after this power-down module in
around 2.5 seconds.The valid connection duration after
the auto-bypass function is enabled is at most around
4 days, otherwise, the Ethernet communication will be
interrupted until power is restored.
STARTUP MANUAL