Logosol 912231020, Manual

Page: 53 / 56

Logosol Multifunctional Servo Drive LS-231g2SB
Doc # 712231006 / Rev. B, 12/26/2017
Logosol, Inc.
• • • •
2833 Junction Ave., Ste. 101
• • • •
San Jose, CA 95134
• • • •
Tel: (408) 744-0974
• • • •
www.logosolinc.com
53
Addressing
Each drive in the daisy-chained network has two addresses:
- Individual - for individual control of each drive. Its range is from 01h to 7Fh.
- Group - for simultaneous control of all group members by sending a single command to
their group address. It is in the range of 80h to FFh.
Both these addresses have to be set during the initialization process.
The group may have Group leader responsible to send status data. Its address is:
Group leader address = Group address - 80h.
If there is no group leader - no status data will be send after a group command.
Set Baud Rate command must be sent only as a group command with no group leader, otherwise
communication problems may occur.
Set Address command format
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
Header Preset Address Command
code
Individual
Address
Group Address Checksum
AA 00 21 01 FF 21
Setting the Addresses
After power-up and
Hard Reset command all drives have their address set to 00h and only the first
drive (starting from the host) has its communication enabled. Consecutive Set Address commands
are sent to address 00h until all drives are addressed. This procedure can be executed once after
Hard Reset . The table below shows the steps to address 3-drives network.
Example of sequential addressing for three Servo drives
s
t
e
p Command Set address
Hexadecimal
Code
Drive 1 Drive 2 Drive 3
Individual
address
Group
address
Individual
address
Group
address
Individual
address
Group
address
0 Power-up
1 Hard Reset AA FF 0F 0E address=00
communication
enabled
address=00
communication
disabled
address=00
communication
disabled
2 Set Address
Drive1 = 01
AA 00 21 01 FF 21 01 FF address=00
communication
enabled
address=00
communication
disabled
3 Set Address
Drive2 = 02
AA 00 21 02 FF 22 01 FF 02 FF address=00
communication
enabled
4 Set Address
Drive3 = 03
AA 00 21 03 FF 23 01 FF 02 FF 03 FF
Note: Before start addressing Hard Reset command must be issued.