ILX56-PBS
Installation
ControlLogix® Platform
User Manual
Page 10 of 87
The module provides two DIP switches and a slot for a SD memory card located on the bottom
of the module. These switches can only be accessed when the module is removed from the
ControlLogix chassis.
DIP Switch
Description
DIP Switch 1
Used to force the module into “Safe Mode”. When in “Safe Mode” the module
will not load the application firmware and will wait for new firmware to be
downloaded. This should only be used in the rare occasion when a firmware
update was interrupted at a critical stage.
DIP Switch 2
Used to prevent changes to the configuration.
Table 2.1. - DIP Switch Settings
PROFIBUS DP Port (RS485)
The PROFIBUS DP port uses a female DB9 connector. This provides connection for the
communication conductors, cable shielding and +5Vdc output power.
Figure 2.3
– ILX56-PBS PROFIBUS DP (RS485) DB9 connector
Pin
Signal
Description
1
-
Not connected
2
-
Not connected
3
RxD/TxD-P
Data received and transmit (+)
4
CNTR-P
Control signal to repeater (+)
5
DGND
Reference potential for +5Vdc
6
VP
+5Vdc for terminating resistors (active termination)
7
-
Not connected
8
RxD/TxD-N
Data received and transmit (-)
9
-
Not connected
Table 2.2
– DB9 Connector layout
