Delta ASD-B2-0121-B User Manual page 254

This parameter is used to set the desired transmission speed between the computer and
AC servo drive. Users can set this parameter and control transmission speed to reach the
maximum baud rate of 115200 bps.
0304H
0305H
Communication
Protocol
This parameter is used to set the communication protocol. The alphanumeric characters
represent the following: 7 or 8 is the number of data bits; N, E or O refer to the parity bit,
Non, Even or Odd; the 1 or 2 is the numbers of stop bits.
0306H
0307H
Transmission
Fault Treatment
This parameter is used to determine the operating sequence once a communication fault
has been detected. If '1' is selected the drive will stop operating upon detection the
communication fault. The mode of stopping is set by parameter P1-32.
0308H
0309H
Communication
Time Out
Detection
When this parameter is set to any value over 0, it indicates that the timer is enabled. The
value set in this parameter is the communication time and the communication time out
detection should be completed within the time. Otherwise, a communication error will
occur.
For example, if the value set in this parameter is 5, it indicates that the communication
time out detection will be activated once in five seconds or a communication error will
occur.
030AH
030BH
Communication
Mode
Revision June 2010
Default: 0x0066
Settings:
0: Modbus ASCII mode, <7,N,2>
1: Modbus ASCII mode, <7,E,1 >
2: Modbus ASCII mode, <7,O,1>
3: Modbus ASCII mode, <8,N,2 >
4: Modbus ASCII mode, <8,E,1>
5: Modbus ASCII mode, <8,O,1>
6: Modbus RTU mode, <8,N,2>
7: Modbus RTU mode, <8,E,1>
8: Modbus RTU mode, <8,O,1>
Default: 0
Range: 0~1
Settings:
0: Display fault and continue operating
1: Display fault and stop operating
Watch Dog Timer (It is not recommended to change the factory
default setting if not necessary)
Default: 0
Range: 0~20 sec.
The factory default setting is set to 0 and it indicates this function is
disabled.
Communication selection:
Default: 0
RS-232 communication selects MODBUS or communicates with ASDA-
Soft.
Chapter 8 MODBUS Communications
8-5