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CTI 2572 Installation and Operation Guide
17
EEPROM Write Protect
Switch 5 on switchblock SW2 protects the data in the EEPROM from being overwritten. When
W
RITE PROTECT is on, the network parameters stored in the EEPROM cannot be changed by the PLC
program or by a PC attached to a serial port. If a program attempts to write to the EEPROM when
the W
RITE PROTECT switch is on, the 2572 will return an error code.
See Section 2.6 on page 19 for procedures used to start the PLC network server using PLC logic. See
Section 2.7 on page 120 and Section 2.8 on page 25 for information on reading and writing the
module EEPROM.
NOTE:
Switchblock switch positions are read only at module startup.
The 2572 module is shipped with all DIP switches in the OFF (OPEN) position. This corresponds to:
Baud Rate ....... ..........................9600
Hardware Handshaking..............DISABLED
Serial Port Protocol.....................CAMP/NITP
Network Startup Mode................PLC START
EEPROM Write Protect..............PROTECT OFF
DataShare ....... ..........................DISABLED
2.5. Physical Installation
Inserting the Module into the I/O Base
Hold the top and bottom of the bezel 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, then remove the module. Take care not to
damage the connector at the back of the module when inserting or removing the module.
Power Up
Turn on the base power supply. Once the 2572 diagnostics have completed and the network
parameters are set, the ACTIVE indicator should illuminate. If the indicator does not illuminate or
exhibits a blinking pattern, see Chapter 5 of this manual for troubleshooting information.