Yokogawa YFGW410 - Manual (Page 119)

<D3. Constructing a Field Wireless System>
D3-58
IM 01W02D01-01EN
D3.2.8 Modbus Settings
When [Modbus Settings] is selected in the menu tree of the Configurator, the tab shown in Figure
D3-59 appears.
FD0363.ai
Figure D3-59 Modbus Settings Tab
The main window is comprised of three tabs: [Modbus Settings], [Input Registers], and [Holding
Registers].
l Modbus Settings Tab
When the [Modbus Settings] tab is selected, the tab shown in Figure D3-59 appears.
At this tab, configure the Modbus mapping type.
There are two mapping types: normal mapping and data type mapping.
• With normal mapping, the status and value of the parameters which send to a host system
can be combined and mapped.
• With data type mapping, the status and value of the parameters which send to a host sys-
tem are separated and mapped to respective areas.
For host systems with 10000 Modbus registers, status values are allocated from register
number 5000.
For host systems with 65536 Modbus registers, status values are allocated from register
number 20000.
The default setting for [Start of status registers] is 20000.
The default Modbus setting is [Normal Mapping].
To change the Modbus mapping method, select the relevant button. When the button selection is
changed, the dialog shown in Figure D3-60 appears.