Advantech WISE-4610 Series User Manual page 66

COM1 (RS-485 Port)
The WISE-4610 has one RS-485 port for Modbus gateway functionality; thus, you
can use this port to poll data from RS-485 Modbus/RTU slave devices such as the
ADAM-4000 series or ADAM-5000/485 series.
Status
Go the COM1 tab to check the status or to configure the RS-485 Modbus master
function. A total of 32 addresses for all Modbus slaves can be mapped as the WISE
module I/O. These 32 addresses can be coils or registers; coils will be mapped as
extension bits of the WISE module, and registers will be mapped as extension words
of the WISE module. In the COM1 status tab, the bits and words are shown on indi-
vidual pages.
 Channel: Indicates the number of bits. A maximum 32 bits can be shown here,
but you may map only fewer than 32 coils as bits, which makes the empty bits
invalid. The same applies to words, which may also have empty channels.
 Value: Indicate the value polling from mapped address.
 Status: Indicate the status of each bit or word, if a channel is empty and has not
been mapped to a Modbus slave address, its status will be "Unavailable."
Slave ID: Indicates the Modbus salve ID of RS-485 Modbus slave devices.

 Slave Address: Indicates the address of a bit or word from an RS-485 Modbus
slave device.
For a writable bit or word, you can click Edit to switch to edit mode; here, you can
change the values and then click Apply to write the Modbus addresses individually.
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