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8.9
CC-Link G4 Communication
This section provides the CC-Link G4 communication procedure and its setting example using the utility setting type.
8.9.1
Switch settings of CC-Link G4 module
This section explains the switch settings of CC-Link G4 modules for the use of MX Component.
The following sketches are used to explain each module.
The settings of MX Component need to be the same as the module.
CC-Link module
Personal computer
CC-Link G4 module
Switch (switch number)
Station number setting switch
Data link transmission speed setting switch
Operation mode setting (SW1, SW6)
Operation setting
DIP switch
Inter-peripheral transmission speed setting
(SW2, SW3)
Parity bit setting (SW4, SW5)
- (SW7)
Test mode setting (SW8)
Setting
Q mode
1(local station)
4(10Mbps)
(match to the transmission speed of the CC-Link module)
SW
SW1
SW6
Setting
OFF
ON
Setting is not required (automatic setting)
Set, Odd number
SW
SW4
SW5
Setting
OFF
OFF
OFF
OFF (online mode)
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CHAPTER 8 COMMUNICATION SETTING EXAMPLES OF UTILITY SETTING TYPE
8.9.2
Access procedure
The following is the procedure for accessing the programmable controller CPU using CC-Link G4 communication.
Start
Set the operation setting DIP switches of the CC-Link G4 module.
Connect the CC-Link G4 module to the CC-Link module.
Connect the personal computer to the CC-Link G4 module.
Set the network parameters.
Start Communication Setup Utility and set the items on
Communication Setting Wizard.
On the communication test screen, check whether communication can be performed properly.
Complete
(1) System example
The following system example is used in this section.
Transmission speed: 19200bps
Transmission speed: 10Mbps
CC-Link
Personal computer
(MX Component) COM1 is used.
CC-Link G4 module
(Q mode)
Station number: 1
Q00J
CPU
Master station
(Sta. No.0)
Logical station number of "8" is used.
8
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180
(2) Wiring the CC-Link G4 module
The diagram of wiring the CC-Link G4 module to the CC-Link module is shown below.
Termination resistor
CC-Link module
DA
DB
DG
SLD
FG
AJ65BT-G4-S3
DA
DB
DG
SLD
+24V
24G
FG
Termination resistor
24VDC
CHAPTER 8 COMMUNICATION SETTING EXAMPLES OF UTILITY SETTING TYPE
(3) Setting the network parameters
Parameter setting may either be set on the Network Parameter - CC-Link Module Configuration screen of GX
Works2 or from a sequence program.
(a) Setting parameter setting on CC-Link setting screen
Set the start I/O number, type, total number of modules connected, and station information.
Set other setting items as required.
<CC-Link parameter setting screen>
<Station information setting screen>
After setting the CC-Link parameters, write them to the programmable controller CPU.
8
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182
(b) Setting parameter setting in sequence program
The parameter setting items for data link and the sequence program example are described below.
<Parameter setting items>
1
H
Address
20
H
Item
Number of connected modules
Station information
Description
Set the number of modules on the remote/local stations connected.
AJ65BT-G4-S3
Setting value
1
H
2101
H
<Sequence program>
This sample sequence program is installed into the following folders after installation of MX Component.
[User-specified folder] - [Act] - [Samples] - [GppW] - [CCG4A]
CHAPTER 8 COMMUNICATION SETTING EXAMPLES OF UTILITY SETTING TYPE
(4) Setting the logical station number (setting on Communication Setting Wizard)
Operating procedure
1.
Start Communication Setup Utility and click the
button.
2.
Enter "8" in Logical station number and click the
button.
3.
Set the following items and click the button.
PC side I/F
Connect port
Time out
: Serial
: COM1
: 10000
8
4.
Set the following items and click the button.
PLC side I/F
Mode
: G4 module
: Q
Transmission speed : 19200
Control : DTR or RTS Control
Continued on next page
183
184
Continued from previous page
5.
Set the following items and click the button.
Station type
CPU type
: Host station
: Q00J
CC-Link module No : 0
6.
Enter a comment and click the button.
Registration complete
CHAPTER 8 COMMUNICATION SETTING EXAMPLES OF UTILITY SETTING TYPE
(5) Checking the logical station number settings (conducting a communication test)
Operating procedure
1.
Click the <<Target setting>> tab and select the logical station number "8".
Check the logical station number settings.
2.
Click the <<Connection test>> tab and select the logical station number "8".
8
Click!
Communication test complete
3.
Click the button to check that communication is being performed normally.
If an error occurs, check the error code and remove the error.
The error code is displayed in Result. (At normal termination, "0x00000000" is displayed in Result.)
For details of error code, refer to the following manual.
MX Component Version 4 Programming Manual
Through the above steps, it is confirmed that the logical station number settings are correct.
This logical station number can be used for user program creation and PLC Monitor Utility.
Collect device data, using this logical station number.
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