User`s manual

12-4
M-net (Master Station) Function
12
12-2-1 How to set (initialize) the M-net system
—
: Can be created
: Cannot be created
Set the number of bytes of data to be transmitted and received in the parameter storage area.
2 Set the switches on the master (JW-32CUM1) and slave modules.
(Reference section)
12-2-3 Switch settings
Setting the switches Master station Slave station
1. Function selection (M-net function)
2. Station number (master station: 00, slave stations: 01 to 07)
3. Data memory top address
(top address of the data range to be transmitted and received)
4. Parameter storage area
(setting the number of bytes of data to be transmitted and received)
5. Communication selection register
(controls the relay number for the M-net communications)
6. Error flag (relay number used to send the M-net communica-
tion error to the PLC module)
7. Transfer speed
8. Mode (communication when an error occurs)
9. Termination resistance
3 Install the master and slave modules.
Chapter 6: Wiring
4 Wire the master and slave modules .
7 Enter a communication program for use by the
master and slave station PC modules.
12-2-4 Parameter setting
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12-2-5 Communication program
End of settings
: Required
setting
— : Does not
required
setting
6 Set the parameters on the master and
slave station PC modules.
5 Turn ON the power to the master and slave station PC modules.
Follow the installation procedures
described in the instruction manual
and the user’s manual for each
module.
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—
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1 Turn OFF the power to the master station PC (JW30H: JW-
32CUM1) and slave station PC modules.
Communication program Master station Slave station
1. Program to start communication and select
the communication mode
2. Monitoring program for the communication
error relay
Remarks
The switch setting contents of the master/slave modules are read into each module, when the PC
power is turned OFF and ON again. Changing the switch settings after turning the PC power ON
may cause a system error.