Vescent ICE, Oem Integration Manual, Page: 13 / 17

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Fig. 12: SMA through-hole, right-angle connector. Emerson PN: 142-0701-881
Communications
This section details considerations for communicating with ICE modules in the system. For pin
definitions and types of connectors for interfacing with the ICE stack, refer to the
ICE-MC1 master
controller product page .
I2C Addressing
The ICE board stack uses an I2C communication bus to control each board. I
2
C is an addressable
protocal, therefore each ICE daughter module needs to have a unique address set. Up to 8 daughter
modules (not including the
ICE-MC1 master controller) can be stacked together. Each ICE circuit board
has a 3 position DIP switch (shown in figure 13 ) installed that allows the setting of each modules I
2
C
address (between 0-7). The selection of address is in binary with DIP position 1 corresponding to the
least significant bit. Setting a bit “HIGH” is done by sliding the switch to the side marked with the
word “ON”, which is shown highlighted in
figure 14 . An example address setting is shown in table 2 .
Valid I
2
C addresses are from 0-7, and every ICE module must be set to have a unique address or
communications bus collisions will occur.
DIP Position Bit Value
1 1
2 1
3 0
Tab. 2: Example setting of DIP switch to I2C address "3".
Each ICE module must be set to have a unique address or
communications bus collisions will occur.