User Manual

MCP Series
Brushed DC Motor Controllers
MCP Series User Manual
67
2.2.11 Multi-Unit Packet Serial Wiring
In packet serial mode up to eight MCP units can be controlled from a single serial port. The
wiring diaghram below illustrates how this is done. Each controller must have multi-unit mode
enabled and have a unique packet serial address set (see General Settings in IonMotion). Wire
the S1 and S2 pins directly to the MCU TX and RX pins. Install a pullup resistor (R1) on the MCU
RX pin. A 1K to 4.7K resistor value is recommended.
S1 Signal
S2 Signal
5VDC
GROUND
MCP 2
S1 Signal
S2 Signal
5VDC
GROUND
MCP 3
S1 Signal
S2 Signal
5VDC
GROUND
MCP 1
UART TX
UART RX
5VDC
GROUND
MCU
R1