Manual

0xFF
1
0xFF
1
7~223
1
0~0xFE
1
1~9
1
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MAX 216
HeaderType
Value
Byte
Packet Size pID CMD Check Sum1 Check Sum2 Data[n]
4. Operation
4-1. Communications Protocol
Servo Controller communicates with the servos in the network by sending a Request Packet and
receiving ACK Packet back from the servo. The example below shows the controller sending a
Request Packet to the Servo n and receiving ACK packet back from the Servo n. Regardless
of the number of servos in the network, only the servo with correct ID (n) will acknowledge the
Request Packet and send the ACK Packet to the controller.
The communications speed of the PC communication ports or USB to Serial Cable can be limited by the
hardware or by the device driver. If problem occurs, check the Baud Rate of the involved port of peripheral to
make sure it supports 115,200bps. If the supported Baud Rate can not found, set the Baud Rate to 115,200bps
or 57,600bps and try again. The default factory setting for DRS-0101 and DRS-0201 is 115,200bps.
Introduction
Packet
Data Bit : 8
Stop Bit : 1
Parity : None
Flow Control : None
Baud Rate : 57,600 / 115,200 / 0.2M / 0.25M / 0.4M / 0.5M / 0.667M
Communication
Protocol
TX : Request Packet
RX : ACK Packet
ID : 0
ID : n
Controller
or
PC
18