LG GLOFA-GM Series User Manual page 253

Chapter 8 Exercising program
[Table 8.1] TX/RX data map
Area
Station
No.
Station 0 %MB0
Station 1 %MB20
Station 2 %MB40
Station 3 %MB60
Station 4 %MB80
Station 5 %MB100
Station 6 %MB120
Station 7 %MB140
8.1.1 Exercising program
As Ex.8.1.1 is 1:1 communication system via dedicated modem for TM master/slave communication, setting for
dedicated modem communication in Cnet I/F module and 1:1 communication programming between Cnet I/F
modules shall be prepared. Next is the procedure to follow the above in order. Basic parameters related
communication should be identical between master/slave stations, and set as agreed with modem specification as
below.
Communication Speed : 9600 BPS
Data bit : 8 bits
Start/Stop bit : 1 bit
Parity : None
1) Dedicated modem connection
Connect 9-pin cable with dedicated modem and Cnet I/F module via RS-232C channel. Refer to 4.4 How to
connect to dedicated modem for connection type prior to connection between Cnet I/F module and dedicated
modem.
2) Dedicated modem setting
Refer to user's manual for setting of operation type of dedicated modem as agreed with communication type with
Cnet I/F module. Related items to communication with Cnet I/F module are to be set as follows. Dedicated
modem shall be set identical between master/slave sides
.
Master station memory
TX RX
Length
Area area
20bytes %MB400
20bytes %MB450
20bytes %MB500
20bytes %MB550
20bytes %MB600
20bytes %MB650
20bytes %MB700
20bytes %MB750
TX
Length
area
50bytes %MB100
50bytes %MB100
50bytes %MB100
50bytes %MB100
50bytes %MB100
50bytes %MB100
50bytes %MB100
50bytes %MB100
8-2
Slave station memory
RX
Length Length
area
50bytes %MB200 20bytes
50bytes %MB200 20bytes
50bytes %MB200 20bytes
50bytes %MB200 20bytes
50bytes %MB200 20bytes
50bytes %MB200 20bytes
50bytes %MB200 20bytes
50bytes %MB200 20bytes