LSIS XBE-DC08A, User Manual

Page: 1021 / 1284

Chapter 2 Built-in Cnet communication
2-23
B
u
ilt
-in
C
omm
The meaning of each items is as follows.
-Parity bit
Cnet I/F module can define three parity bits. Meaning of each parity bit is as follows.
Parity bit type Meaning Reference
None Not using parity bit
Even If the number of 1 in one byte is even, parity bit becomes “0”.
Odd If the number of 1 in one byte is odd, parity bit becomes “1”.
[ Parity content table ]
-Operation mode setting
▪
Sets operation mode
Driver type Meaning Reference
P2P
Each port acts as client and executes the communication by setting
P2P parameter. P2P setting
reference
XGT server It acts as XGT server supporting XGT dedicated communication. Dedicated service
Modbus ASCII server It acts as Modbus ASCII server
Modbus
communication
Modbus RTU server It acts as Modbus RTU server
Modbus
communication
[ Operation mode setting item ]
Note
Character Time: It means the required time to send 1 character and it is variable depends on communication speed.
1) In case of that communication speed is 9600bps, how to calculate 3.5 Character Time
Character time = (number of bits of 1 character(11)/communication time) * 3.5
= (11/9600)*3.5
= 4.01ms