User Manual

2-13
IM 04L21B01-17EN
Using the Serial Communication Interface (/C2 and /C3 Options)
1
2
3
4
5
6
App
Index
First/Last (FX channel numbers)
Enter the first and last channel numbers for I/O. The range of channels that you can
enter varies depending on the command type as follows:
R-M: C01 to C24, W: 001 to 012, W-M: 101 to 124
Address
Enter the address of the slave device in the range of 1 to 247.
Regi.
Set the register number of the slave.
For an input register, select in the range of 30001 to 39999 and 300001 to 365536.
For a hold register, select in the range of 40001 to 49999 and 400001 to 465536.
The register numbers you can specify vary depending on the command type. See
section 6.3.
Type
Select INT16, UINT16, INT32_B, INT32_L, UINT32_B, UINT32_L, FLOAT_B, or
FLOAT_L.
The register numbers you can specify vary depending on the command type. See
section 6.3.
Examples of Setting Commands
See page 1-45.
Checking the Modbus Operating Status
Displaying the Modbus Operating Status
Press DISP/ENTER and select INFORMATION > MODBUS MASTER.
Note
To display the MODBUS MASTER on the screen selection menu, you need to change the
setting using the menu customize function. Operate as follows:
Press
MENU
(to switch to setting mode), and select the
Menu
tab >
Menu customize
>
Display menu.
1. Select INFORMATION > MODBUS MASTER
.
2. Press the View soft key.
Address for a slave device
Register number
FX channels
Detail code
Status lamp
Cursor to select a command
(Used when resuming command transmission
to a slave device using the front panel keys)
Communication condition
2.6 Using Modbus to Read Data From and Write Data to Other Devices