Chapter 8. Communication Functions
8-42
(3) Set according to the following table.
Item Setting range
Station No. Station no. from 0 to 31.
Baud Rate 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps
Data Bit 7 or 8 bits
Parity Bit 0, Even or Odd
Stop Bit 1 or 2 bit(s)
Communication
Channel
z RS-232C Null Modem or RS-422/485: It’s a communication channel for the communication,
using GM7U base unit’s built-in communication and Cnet I/F module (G7L-CUEC).
z RS232C Modem (Dedicated Line): It’s to be selected for the communication, using a dedicated
modem with Cnet I/F module (G7L-CUEB).
z RS232C Dial Up Modem: It’s to be selected for the general communication connecting through
the telephone line by dial up modem and Cnet I/F module (G7L-CUEB).
Remark) Using Cnet I/F module (G7L-CUEB) supporting RS232C, RS232C dedicated
or dial-up modem communication can be done, but not through Cnet I/F module (G7L-
CUEC) supporting RS422/485.
Timeout in Master
Mode
z It’s the time waiting a responding frame since the master GM7U base unit sends a request
frame.
z The default value is 500ms.
z It must be set in consideration of the max. periodical time for sending/receiving of the master
PLC.
z If it’s set smaller than the max. send / receive periodical time, it may cause communication
error.
User Define Master
/ Slave
If it is set as the master, it’s the subject in the communication system. If it’s set as the slave,
it only responds to the request frame of the master.
2) Frame setting
(1) Click “List” button to activate the following window.
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