Configure Modbus Point Scanner Settings
The Modbus Point Scanner section of the Modbus tab allows you to configure how the SCADAPack x70 reads and writes with points associated with the Modbus Slave device.
Operation
Use this combo box to specify whether the SCADAPack x70 reads from, or writes to, the point on the Modbus Slave device. Select from Read or Write.
Write Outputs
This combo box will only be available if you set the Operation to Write. Use this combo box to specify when the SCADAPack x70 writes to the point on the Modbus Slave device. Select from the following:
At Scan Rate
Write to the point at the Default Scan Rate configured for Slave device, see Configuring a Modbus Slave Device or at the Scan Rate defined on this form (see Scan Rate below).
On Change
Write to the point when the point value changes.
At Scan Rate and On Change
Write to the point at both the Default Scan Rate configured for the slave device, and when the point value changes (see Configuring a DNP3 SCADAPack E Modbus Slave Device ).
This combo box will only be available if you set the Operation to Read/Write. Use this combo box to specify the operation the SCADAPack x70 should perform while the point is offline.
This combo box will only be available if you set the Operation to Read/Write. Use this combo box to specify the operation that should occur when a write failure occurs. Either Revert to the previous operation or Retain the current operation.