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 A
UTO
S
TART
position, the module will automatically start up using parameters stored in non-volatile
(flash) memory.
•
In the PLC
S
TART
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 S
TART
N
ETWORK
S
ERVICES
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 L
OCKED
position, changes to the module IP parameters using the Module Configuration embedded
web server page will be prevented. In the Unl
OCKED
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 C
LOSED
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 C
LOSED
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 C
LOSED
position, the Special Function Interface will use the compatibility mode. When
the switch set to the O
PEN
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.
