Delta AH500 Manual page 468

AH500 Module Manual
COM port can be set to UD Link mode or Modbus mode via the right key of the mouse. (Select
Modbus Mode when using the standard Modbus protocol; select UD Link mode when using
RS485 user-defined format). In the two-mode switch, please note that the previous mode will be
lost after being changed into the other one.
 Modbus mode setting
Click Read or Write to enter the MODBUS read or MODBUS write setting interface in the
following left-side box. Right click on the following right-side box to select "Add Item" to add bit
and word item of Read and Write. The upper part is bit item of Read/Write and the lower part is
word item of Read/Write.
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