Chapter8 Communication Function
8-33
N
Set according to the following table
Item
Contents
Station No.
Sets one of station from 0 to 31.
Baud rate
Sets one of 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps
Data bit
Sets one of 7 or 8 Bits
Parity bit
Sets one of none, Even, Odd
Stop bit
Sets one of 1 or 2 Bit(s)
Communication
channel
•
RS232C null modem or RS422/485: can be selected as a communication channel when
communication is processed by built-in functions of MK80S Base Unit or Cnet I/F module
(G7L-CUEC).
•
RS232C dedicated modem: can be selected when communication is processed by Cnet
I/F module (G7L-CUEC).
•
RS232C dial-up modem: can be selected when common modem communication calling
the opponent station is processed by Cnet I/F module (G7L-CUEC).
* Notes: RS232C dedicated modem and RS232C dial-up modem communication can be
processed only by Cnet I/F module (G7L-CUEC) supporting RS-232C, not Cnet I/F
module (G7L-CUEC) supporting RS-422/485.
Timeout in Master
Mode
•
It’ s an interval waiting after sending request frame from Master MK80S before receiving a
response.
•
default value is 500ms.
•
Setting must be done in consideration of maximum interval of sending and receiving cycle
of a master PLC.
•
If the time out is less than the maximum interval of the s/r cycle, error can occur.
Dedicated
Master/Slave
MasterK7 can read from and write on Slave K7.
Read status of
slave PLC
can be select especially when you read Slave K7 for monitoring, but not for the other
purposes, lest it may cause decreasing communication speed.
