Figure 19: Dual Bus Parameters; Figure 20: References By Sba Of Genius Devices On Bus - GE PACSystems RX3i Application Manual

Chapter 4. Toolchest Components
Dual Bus Parameters
BUS.DEF_TO
BUS.DEF_HLS
BUS.DI_OFST
BUS.AI_OFST
BUS.Devices[nn].DI_Add This parameter applies to devices that contain discrete inputs. It is the starting
BUS.Devices[nn].DI_Len This parameter applies to devices that contain discrete inputs. It is the number of
BUS.Devices[nn].DQ_Add This parameter applies to devices that contain discrete outputs. It is the starting
BUS.Devices[nn].DQ_Len This parameter applies to devices that contain discrete outputs. It is the number of
BUS.Devices[nn].AI_Add This parameter applies to devices that contain analog inputs. It is the starting
BUS.Devices[nn].AI_Len This parameter applies to devices that contain analog inputs. It is the number of
BUS.Devices[nn].AQ_Add This parameter applies to devices that contain analog outputs. It is the starting
BUS.Devices[nn].AQ_Len This parameter applies to devices that contain analog outputs. It is the number of
20

Figure 19: Dual Bus Parameters

The Default Timer Preset establishes the time interval (in milliseconds) during which
inputs are frozen while a device is missing from Bus A AND from Bus B.
This parameter (a Boolean) determines the behavior of a missing device:
•
If the parameter is set to 0, the inputs for that device will default to OFF or 0
after the Default Timer expires.
•
If the parameter is set to 1, the inputs for that device will be frozen in their last
state until the device is reattached to either Bus A or Bus B.
This applies to discrete inputs. It is the reference offset between a discrete input
configured on Bus A and the alternate address on Bus B. For instance, a device
configured at %I0001 on Bus A must be configured at %I (1+DI_OFST) on Bus B.
The offset must be in multiples of 8 (i.e., on a byte boundary).
This applies to analog inputs. It is the reference offset between an analog input
configured on Bus A and the alternate address on Bus B. For instance, a device
configured at %AI0001 on Bus A must be configured at %AI (1+AI_OFST) on Bus B.

Figure 20: References by SBA of Genius Devices on Bus

reference assignment for the device installed at Serial Bus Address nn.
inputs (i.e., length) associated with the device installed at Serial Bus Address nn.
reference assignment for the device installed at Serial Bus Address nn.
outputs (i.e., length) associated with the device installed at Serial Bus Address nn.
reference assignment for the device installed at Serial Bus Address nn.
inputs (i.e., length) associated with the device installed at Serial Bus Address nn.
reference assignment for the device installed at Serial Bus Address nn.
outputs (i.e., length) associated with the device installed at Serial Bus Address nn.
PACSystems* RX3i Genius Dual Bus Application Guide GFK-2928