CTI 2500C-2572-B Instruction Manual

2500C-2572-B Quick Start Guide (62-466-010) Page 1
2500C-2572-B
QUICK START – INSTALLATION GUIDE
Purpose of this Document
This document is designed to assist you in unpacking and installing a CTI 2500C-2572-B module. For additional
information, see the CTI 2572-B Installation and Operation Guide, available for download from the CTI web site
(www.controltechnology.com).
Introduction
The CTI 2572-B Ethernet Network Interface Module provides the capability to interface a CTI 2500 Series® Compact
controller to an Ethernet network using the TCP/IP protocol suite. The 2500C-2572-B module enables supervisory
control applications to access PLC memory via the local area network. In addition, the module supports peer-to-peer
communications for transferring data between PLCs and PLC programming activities.
Front Panel Features
LED Indicators
Multi-Segment Display (MSD)
The Multi-Segment Display (MSD) is located below the status LEDs. During normal operation the MSD
will display the TCP/IP address of the module and the subnet mask in CIDR format. CIDR format is a
compact way of displaying the network mask. See the CTI 2572-B Installation and Operation Guide
(Appendix C) for more information regarding CIDR format.
1.3.3 Reset Button
The Reset button is a momentary contact switch that allows you to restart the module without having
to cycle power to the base. It is recessed to prevent inadvertent use. To reset the module, use a small
object such as the tip of a ball point pen to depress and hold the switch for approximately one second.
When the switch is released, the module will begin the startup sequence.
To reset the module network parameters to factory default values, hold the reset button down for 10
seconds or more.
1.3.4 Ethernet Port
The port uses an RJ-45 connector which allows attachment of Unshielded Twisted Pair (UTP) or
Shielded Twisted Pair (STP) Ethernet cabling.
MS
Module Status
Indicates application firmware operational status
(Steady Green = Good)
NS
Network Status
Indicates TCP/IP communications status (Steady Green = Good)
ACT
Activity
Indicates network traffic is present when illuminated.
LS
Link Status
Indicates the status of the Ethernet connection (Green = Good)
FDX
Full Duplex
Operating in full-duplex mode when illuminated
100
100 Mb
Operating at 100 Mb Ethernet speed when illuminated.

Page 2 2500C-2572-B Quick Start Guide
Unpacking the Module
Open the shipping carton and remove the special anti-static bag that contains the module. After discharging any static
build-up, remove the module from the static bag. Do not discard the static bag. Always use this bag for protection
against static damage when the module is not inserted into the I/O base.
CAUTION:
The components on the 2572-B module can be damaged by static electricity discharge.
To prevent this damage, the module is shipped in a special anti-static bag. Static control precautions
should be followed when removing the module from the bag and when handling the printed circuit board
during configuration.
Setting the 2572-B Switches
Switches on the 2572-B are used to select startup, PLC access, and access protection options.
See the illustration below to locate the switchblock on the circuit board.
The function of each switch is described in the illustration and text below.
SW1, SW2: These switches are unused and may be set to any position with no effect.
SW3: This switch position is reserved for future use. It should be set to the open position to prevent a future use from
unintentionally affecting the module operation.

2500C-2572-B Quick Start Guide (62-466-010) Page 3
SW4: Startup Option. This switch selects how the 2572-B module will start network services.
•In the AUTOSTART position, the module will automatically start up using parameters stored in non-volatile
(flash) memory.
•In the PLC START position, the module will start up in a limited function mode, using the parameters stored in
flash. It will then wait for PLC logic to trigger the START NETWORK SERVICES command before starting the
network services that allow access to the PLC.
NOTE:
When using the PLC Start Option, the PLC must be in run mode before the module will start up in full
function mode.
SW5: Configuration Lock. This switch allows you to prevent changes to the module IP parameters via the network.
When set to the LOCKED position, changes to the module IP parameters using the Module Configuration embedded
web server page will be prevented. In the UnlOCKED position changes will be allowed.
Note:
If the PLC Start option is selected, PLC logic will be able to change the module IP parameters, regardless of
the switch position.
SW6: Firmware Update. This switch allows you to prevent updates to the module firmware. When set to the CLOSED
position, this switch prevents the user from the initiating firmware update using the Update Firmware page of the
embedded web server.
SW7: Password Bypass. When set to the CLOSED position, this switch bypasses all password checks in the web server.
You can use this option to temporarily allow the password to be changed when the current password is unknown or
when password protection is not required.
SW8 – SW10: These switches are reserved for future use. They should be set to the open position to prevent a future
use from unintentionally affecting the module operation.
SW11: PLC Interface Mode. This switch allows you to select a PLC interface that is compatible with the CTI 2572
module and other Special Function I/O modules. By default, the 2572-B module uses a high performance interface
mode that increases the amount of data per scan that can be transferred between the module and the PLC and sets
the task codes per scan to 8.
In most cases, you should use the high performance mode. However, in instances where minimizing PLC scan time is
required, you may wish to use compatibility mode. This is especially true when the 2572-B module is installed in a
remote base where high performance mode can significantly increase the PLC scan time.
When this switch is set to the CLOSED position, the Special Function Interface will use the compatibility mode. When
the switch set to the OPEN position, the module will use a high performance interface mode.
SW12: Reserved. This switch is reserved for future use. It should be set to the open position to prevent a future use
from unintentionally affecting the module operation.
NOTE
The Option switches are read only at module startup. If you change the switch position after startup, you must restart
the module before the setting will take effect.

Page 4 2500C-2572-B Quick Start Guide
Physical Installation
To insert the module into the I/O base, hold the top and bottom of the bezel, align the circuit board with the guide,
and slide the module carefully into the slot, pushing it all the way into the base. If you have inserted the module
correctly, you will feel a slight increase in resistance as the module mates with the base backplane connector. Once
the module is fully seated in the slot, tighten the captive screws at the top and bottom to hold the module in place.
To remove the module from the I/O base, loosen the captive screws, and then slide the module out of the base. Take
care not to damage the connector at the back of the module when inserting or removing the module.
Connecting the Ethernet Cable
Insert the 8 pin (RJ-45) plug on your unshielded twisted pair cable into the RJ-45 jack on the 2572. Push the plug into
the jack until the plug clicks into place.
Initial Power On
Apply power to the base. The module should begin a power-up sequence during which the LEDs and the Multi-
Segment Display will change state.
Module Startup
After power is applied to the 2572-B module, when the Reset button is pressed, or when the module is restarted by
software or the reset switch, the module will begin the startup procedure. After the application firmware is running,
all LEDs and MSD segments will be illuminated for approximately one second (multicolor LEDs will be red for ½ second
and green for ½ second), and then will be turned off. This serves a display test and as an indication that module
startup is in process.
AutoStart Mode
If the AUTOSTART option is selected (SW4), the module will start up using the IP address stored in flash. If the startup is
successful, all module network services, including the embedded web server, CAMP Server, Modbus TCP Server, and
the Ethernet IP server, will be enabled. After startup, the MS LED should be STEADY GREEN and the Multi-Segment
Display (MSD) should display the module IP address and subnet mask (in CIDR format). The NS LED should be either
STEADY RED if a duplicate IP has been detected (indicating the module IP address is the same as another IP Host on the
network) or STEADY GREEN if no duplicate has been detected. If the module is not in this state, see the CTI 2572-B
Installation and Operation Guide for troubleshooting instructions.
PLC Start Mode
If the PLC START option is selected (SW4), the module will start up in a limited function mode using the IP address
stored in flash, enabling only the embedded web server. Then it will wait on the PLC logic to set the IP address and
enable the application servers using the Start Network Services command. While the module is waiting on the PLC
command, the MSD should display the characters “PLC” interleaved with the IP address read from flash. The NS LED
should be FLASHING RED if the IP address read from flash memory is a duplicate of another IP host on the network or

2500C-2572-B Quick Start Guide (62-466-010) Page 5
FLASHING GREEN if no duplicate has been detected. While in the state, you can access the module web server pages
only.
Once the PLC successfully initiates the Start Network Services command, the module will begin using the IP
parameters specified in the command and will enable all module network services. The MSD should display the IP
address and subnet mask (in CIDR format) specified by the PLC logic. The NS LED should be STEADY RED if a duplicate IP
address is detected; otherwise, the NS LED should be STEADY GREEN. If the module is not in this state, see the CTI 2572-
B Installation and Operation Guide for troubleshooting instructions.
Entering the Module into the PLC I/O Configuration
If you want to use PLC logic to monitor and/or control the module operation, you must enter the 2572-B into the PLC
I/O configuration using your PLC programming application. The 2572-B is configured as a Special Function module with
2 WX and 6 WY words. In the following example, the 2572-B module is installed into slot 1 on I/O base 0 (local base)
and will be logged in starting at address 1.
After you read the I/O base, if the number of WX and WY words are the same as those shown in the example above
and Special function = YES, then the PLC can recognize the module. Change the address as required by your
application and save the result. If the line is blank or erroneous, re-check the module to ensure that it is firmly seated
in the I/O base slot. Generate the PLC I/O configuration chart again by reading the I/O base. If the problem persists,
contact your distributor or CTI customer support.
NOTE:
The module must be configured in the I/O table before you can use PLC logic to start the module, monitor
the module status, or control the module operation.
Storing Network Parameters in Flash
If you have selected the AutoStart option (SW4), you will need to manually set the IP parameters to correspond to
your networking requirements.
The 2572-B IP Parameters can be set using the embedded web server. Point your browser to the main Product
Information page by entering the IP address of the 2572-B module in the browser URL field. From the list of pages on
the left hand side of the page, select the MODULE CONFIGURATION page. When the configuration page is displayed, enter
the new IP address information in the appropriate fields and press the Update Module button.

Page 6 2500C-2572-B Quick Start Guide
The 2572-B is shipped from CTI with the IP address set to 169.254.1.1 and the subnet mask set to 255.255.0.0. To
connect to the module, you must ensure that your PC has an IP address that is on the same IP network and is not the
same as the module IP address.
One method of providing your PC with compatible IP address is to use Windows Control Panel (or Windows Settings in
Windows 10) to configure a static IP address. In this case, the first two octets of the PC IP address must be 169.254,
the last two octets of the PC IP address must not be 1.1, and the PC subnet mask must be set to 255.255.0.0. For
example, an IP address of 169.254.1.2 would work.
Note:
Holding down the reset button for 10 seconds or more will cause the 2572-B module to restart with the CTI
factory default address described above.
Instead of manually setting a static address, you can cause your PC to generate a compatible address, if your PC is
using DHCP (Dynamic Host Configuration Protocol) to obtain an IP address.
The IP address 169.254.1.1 is a link local IP address, which is used only to communicate on the local network. When a
Windows PC is unable to obtain an IP address from DHCP, it automatically generates a link local address using a
feature called Automatic Private IP Addressing. To cause the PC to generate a compatible address, do the following:
•Connect an Ethernet cable directly between your PC and the 2572-B module;
•Reboot the PC.
NOTE: It may take several minutes before the PC will stop trying to contact a DHCP server and generate the Link Local
address. You can display the IP parameters being used by the PC by opening the Command Prompt window and
entering IPCONFIG at the prompt. Once the link local IP address is generated, you can connect by typing
http://169.254.1.1 in your browser’s URL box.
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