Some communication boards provide an I2C interface connector. This is a high-speed serial protocol that can be daisy-chained to interconnect multiple I2C devices. Currently, I2C is utilized internally in the controller to interface to a clock/calendar chip, the MCIM dip switches, and a series of temperature sensors. In the PrecisePlace 1300/1400 robots, I2C is used to interface the controller to the robot's Z-axis IO board. For the 2000 W PrecisePower Intelligent Motor Power Supply, an I2C connection provides power supply status information to the Guidance controller. See Figure 7-23 and Table 7-14.
| Pin | Description |
|---|---|
|
1 |
24VDC |
|
2 |
24VDC |
|
3 |
GND |
|
4 |
GND |
|
5 |
GND |
|
6 |
GND |
|
7 |
SDA |
|
8 |
VCC |
|
9 |
SCL |
|
10 |
GND |
|
User Plug Part No |
Molex 22-55-2101. For this Molex plug, use Molex pins 16-02-0103 and Molex crimp tool 63811-1000. |