PT200MI instruction manual 33
10.2 INSTALLING RS232/RS485 SERIAL OPTIONS
The RS232 and RS485 are two different option boards. They are the same size and install into the
same position on the parent circuit boards. Gently press the circuit board into place onto the connector
(RS232/RS485) in the position shown ensuring the pins line up and secure with the screw provided.
Note: When multi-drop RS485 communications are to be used and ID = XX is set in the FUNC
setting stage, the ST62 (TERMINATOR) jumper on the main board (bottom left of the BCD board)
should be set to “ON”, a 200Ω impedance matching resistor is added to the communication terminal.
This applies only to the last PT200MI in the multi-drop arrangement, the one with ID=XX. (ref8.3.4)
10.3 INSTALLING THE COMPARATOR OUTPUT OPTION
The comparator option board installs into the parent circuit board just below the RS232 or RS485 option
board. Gently press the circuit board into place onto the connector (SETPOINT) in the position shown
ensuring the pins line up and secure with the screw provided.
10.4 INSTALLING THE 0~5 V ANALOGUE OUTPUT OPTION
The 0~5 V analogue output option board cannot be installed with a 0~20/4~20 mA output option board
or a BCD output option board. The 0~5 V option board installs into the parent circuit board just above the
RS232 or RS485 option board. Gently press the circuit board into place onto the connector (BCD/ANA) in the
position shown and secure with the screw provided. Connect the 2 pin auxiliary connector of the option board
to the adjacent socket CN85 and similarly for the 3 pin connector to CN63.
10.5 INSTALLING THE 0~20 mA/4~20 mA ANALOGUE OUTPUT OPTION
The 0~20/4~20 mA analogue output option board cannot be installed with a 0~5 V output option board
or a BCD output option board. The 0~20/4~20 mA option board installs into the parent circuit board just
above the RS232 or RS485 option board. Gently press the circuit board into place onto the connector
(BCD/ANA) in the position shown and secure with the screw provided. Connect the 2 pin auxiliary connector
of the option board to the adjacent socket CN85 and similarly for the 3 pin connector to CN63.
10.6 INSTALLING THE BCD OUTPUT OPTION
The BCD output option board cannot be installed with a 0~5 V output option board or a 0~20/4~20 mA
output option board. The BCD option board installs into the parent circuit board over the top of the
RS232/RS485 and comparator option boards using the same multi-pin socket (BCD/ANA) as the analogue
options. Gently press the circuit board into place onto the connector in the position shown and secure with
the two screws provided. Connect the 2 pin auxiliary connector of the option board to CN64.
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