Appendix G Setup More Modbus Rtu Salve Ports - ICP DAS USA ISaGRAF WinCE ViewPAC User Manual

Appendix G Setup More Modbus RTU Salve Ports

The ISaGRAF WinCE ViewPAC can setup up to five Modbus RTU slave ports in one of the COM2 or COM3,
and in four of the COM5, COM6, COM7, COM8 (expansion multi-serial ports in slot 0 to 2, refer to the
appendix E) .
st
1. The 1 Modbus RTU slave port can be one of the COM2 or COM3 which can be set on the "ViewPAC 's
monitor" (refer to the
nd
2. User may enable 2
support other COM port number)
3. Before using this function in COM5 to 8, please make sure COM5, COM6, COM7 , COM8 do exist and
well configured. (Refer to the
4. Via 2nd, 3rd, 4th or 5th Modbus RTU slave port, user may use ISaGRAF to Debug / Set_val to the
controller, however user cannot Stop / Download / Update the ISaGRAF program.
5. To Debug / Set_val / Stop / Download / Update the ISaGRAF program, please use Ethernet port (or
the first Modbus RTU slave port , that is COM2 or COM3 if enabled). COM5 to COM8 are not for
ISaGRAF to Stop / Download / Debug.
How to setup ?
Please connect "Rtu_slav" in the ISaGRAF IO connection window. Re-compile the project and download
to the ViewPAC via Ethernet (or first Modbus RTU port if it is enabled)
The 4-ch Boolean
inputs indicate the
related port is well
enabled or not.
True: Enable Ok.
False: Disabled.
appendix A.2).
rd th th
, 3 , 4 or 5 Modbus RTU slave port in COM5 , COM6 , COM7 or COM8 . (No
appendix E)
RTU_Slave_Port2 ~ 5 defines the COM Port
number to enable. Value can be 0, 5, 6, 7, or 8.
Value of 0 means not enable it. Baud rate setting
can be 600, 1200, 2400, 4800, 9600, 19200, 38400,
57600, 115200
ISaGRAF WinCE ViewPAC User Manual , V.1.6 , 1/2017 by ICP DAS
Ap-27