SEP 2005 MODEL 1000
INSTALLATION AND SETUP
3-34
(3) Inspect or change the DIP switch settings as necessary.
(a) See Table 3-3 as a guide.
(b) Make sure you record in the GC Controller's maintenance records any changes you
make to the switch settings.
Figure 3-5. COM ID DIP Switch
Explanation of DIP Switch Setting
O Switches "1" through "5" form a 5-bit binary number for setting the Modbus slave address
(also known as COM ID or Device ID.)
O Switch number "1" is the least significant bit, and switch number "5" is the most significant
bit.
O Switch to ON = 1
Switch to OFF = 0
O Switch "6" is a spare for future use. Switches “7" and "8" are set as needed for the presence
of an optional LOI (Local Operator Interface) connected via COM8 When the COM4A
Board is installed. If the COM4A Board is not installed, the LOI is connected via COM4.
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