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5
PREPARATORY PROCEDURES BEFORE
OPERATION
5.2 Preparatory Procedures before Operation
5 - 2
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
PREPARATORY
PROCEDURES BEFORE
OPERATION
6
LINK DATA SEND/
RECEIVE PROCESSING
AND PROCESSING TIME
7
PROGRAMMING
8
TROUBLESHOOTING
5.2 Preparatory Procedures before Operation
This section describes the outline of preparatory procedures before operation.
POINT
The link parameter setting (refresh parameter) is not required for a Q series local
station since refresh is performed in a sequence program.
Figure 5.1 Preparatory procedures before operation
Start
Check prior to power-onCheck prior to power-on
Power-onPower-on
Local module single checkLocal module single check
Connection of cableConnection of cable
Connect link modules via a cable.
Line check between two stationsLine check between two stations
Link parameter setting for the master stationLink parameter setting for the master station
Set link parameters for the master station.
Type MELSECNET, MELSECNET/B Data
Link System Reference Manual
Line check (not provided for MELSECNET/B)Line check (not provided for MELSECNET/B)
Programming for refreshProgramming for refresh
Programming and debugProgramming and debug
END
Set the RUN/STOP switch of the CPU module to
STOP. Check to see if the external power supply
voltage for the power supply module is within the
stipulated range.
Turn ON the external power supply. Check to see if
RUN LED of a local module is turned ON.
Check the hardware of a local module by the self-
loopback test.
Check the line between the two adjacent stations by
the station-to-station test.
Create a program for refresh. Set the RUN/STOP
switch of the CPU module to RUN, and check the
program.
Check the forward loop or reverse loop side line of
the MELSECNET.
Create a program for data link and check the
program.
Type MELSECNET, MELSECNET/B Data
Link System Reference Manual
Section 5.5.1 Self-loopback test
Section 5.4 Wiring
Section 5.5.2 Station-to-station test
CHAPTER 7 PROGRAMMING
Section 5.5.3 Forward loop test/reverse loop