Klinkmann Unitronics Vision V530-53-B20B Installation Manual page 7

Installation Guide
RS232 to RS485: Changing Jumper Settings
The port is set to RS232 by factory default.
To change the settings, first remove the Snap-in I/O Module, if one is installed, and then set the
jumpers according to the following table.
Before you begin, touch a grounded object to discharge any electrostatic charge.
Before removing a Snap-in I/O Module or opening the controller, you must turn off the power
RS232/RS485 Jumper Settings
Jumper 1
RS232* A
RS485
B
RS485 A
Termination
*Default factory setting.
Removing a Snap-in I/O Module
1. Locate the four buttons on the sides of the controller, two on either side.
2. Press the buttons and hold them down to open the locking mechanism.
3. Gently rock the module from side to side, easing the module from the controller.
Re-installing a Snap-in I/O Module
1. Line the circular guidelines on the controller up with the guidelines on the Snap-in I/O Module as
shown below.
2 Apply even pressure on all 4 corners until you hear a distinct 'click'. The module is now installed.
Check that all sides and corners are correctly aligned.
Unitronics
2 3 4
A A A
B B B
A B B
.
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