gefran BDI50 Serie Manual De Usuario página 155

MASTER(PLC etc.) send request to SLAVE, whereas response to
MASTER.
The signal receiving is illustrated here.
The data length is varied with the command(Function).
** The interval should be maintained at 10ms between command signal and request.
1.3 SLAVE(Address)
00H : Broadcast to all the drivers
01H : to the No.01 Drivers
0FH : to the No.15 Drivers
10H : to the No.16 Drivers
and so on....，Max to 32(20H)
1.4 Function Code
03H : Read the register contents
06H : write a WORD to register
08H : Loop test
10H : write several data to register(complex number register write)
2. CMS (Checksum and time-out definition)
2.1 LRC CHECK
Ex: ADDRESS
FUNCTION
COMMAND
DATA LENGTH
-----------------------
Checksum
CS(H)
CS(L)
01H
03H
01H
00H
0AH
0FH------------true complement
= F1H
= 46H (ASCII)
= 31H (ASCII)
App 3-2
SLAVE
Address
Function Code
DATA
CRC CHECK
Signal Interval