SRV-63 series AC servo drives Communication
-228-
Baud rate
Communication length
1.5Mbit/s (default)
200m
500kbit/s
400m
187.5kbit/s
1000m
93.75kbit/s
1200m
19.2kbit/s
1200m
9.6kbit/s
1200m
Note:
1.
PROFIBUS-DP communication card provides two rotary switches (S3, S4) to set the
communication address on PROFIBUS-DP network. These two rotary switches of binary are used to
set the ones and tens of the communication address. The valid range of the communication address
is 0~99. The address modification will be effective immediately, it is recommended to set
PROFIBUS-DP address during power-off to prevent accidents.
2. It is necessary to use 150Ω twisted pair cables according to the electric transmission mode of
EIA-485 standards.
3. It is necessary to add the terminal resistor to the start terminal and end terminal in the same one
PROFIBUS-DP network, the connection mode of the terminal resistor is shown below:
Ru=390 ohm
Rt=220 ohm
Rd=390 ohm
+5V_BUS (Pin: 6)
B-Line (Pin: 3)
A-Line (Pin: 8)
GND_BUS (Pin: 5)
4. The bus transmission baud rate can be identified automatically after the power on of
PROFIBUS-DP communication card.
8.4.3 PROFIBUS-DP software configuration
“Master-slave” mode is available between the data transmission between the main control module
and slave control module and SRV-63 servo drive is always the slave. In real-time control, the cycle
data is used for the command setting and state monitoring and the non-cycle communication function
is used for the diagnosis and troubleshooting of the data transmission.
The drive control needs parameter and process data. The non-cycle data is used to control
commands and drives. The process data is cycle data for servo drive control. SRV-63 only supports
PROFIBUS-DP V0 protocol version (support PKW+PZD mode) and PPO type 5. DP-V0 is the basic
communication protocol version and only supports cycle data exchange (MS0 communication). It has
the basic configuration for parameters definition and diagnose.
PROFIBUS cycle transmission message applies 32 Byte transmission modes and the data format is
as below: