Users Manual

Configuring the BioPointe
52
6.2 DIP Switches
There are three DIP switches on the control board. The usage of each switch is as tabulated:
SW1 8-way To set the Device ID
SW2 4-way To set the baud rate and communication type
SW3 8-way To set the type of serial communication (i.e.
whether RS232, 422 or 485)
The following tables show the settings for each of the three DIP switches.
Note that a "-"indicates an "OFF" position.
Table 1: SW1 (Device ID)
SW1 is used to set the Device ID of the device. It has a row of 8 DIP switches. The range of Device IDs that
can be set is 0 to 255. However, the acceptable range for field operation is 1 to 254. The Device ID is set
according to the binary format of an 8-bit byte. An "ON" position is interpreted as binary bit 0. To help you
to find the dip switching settings for a particular Device ID, use the index value associated with each bit.
Switch /
Device ID
1 2 3 4 5 6 7 8
Index Value
1 2 4 8 16 32 64 128
0 (Not used) ON ON ON ON ON ON ON ON
1 - ON ON ON ON ON ON ON
2 ON - ON ON ON ON ON ON
3 - - ON ON ON ON ON ON
4 ON ON - ON ON ON ON ON
5 - ON - ON ON ON ON ON
6 ON - - ON ON ON ON ON
7 - - - ON ON ON ON ON
8 ON ON ON - ON ON ON ON
9 - ON ON - ON ON ON ON
10 ON - ON - ON ON ON ON
:
:
:
:
:
:
:
:
:
253 - ON - - - - - -
254 ON - - - - - - -
255 (Not used) - - - - - - - -
Examples:
Switch/
Device ID
1 2 3 4 5 6 7 8
Index Value 1 2 4 8 16 32 64 128
Device ID 5 = 1 + 4
Position - ON - ON ON ON ON ON
Device ID 6 = 2 + 4
Position ON - - ON ON ON ON ON
Device ID 10 = 2 + 8
Position ON - ON - ON ON ON ON
Device ID 30 = 2 + 4 + 8 + 16
Position ON - - - - ON ON ON