7 DEVICE SUPPORT BLOCK (DSB)
7.13 Configuring a Generic Device Support Block
The Generic DSBs (GENDSB, GENIODSB, GENPADSB, GENPAGWDSB) is configured for the PROFIBUS
devices that do not have device-specific DSBs. Although Generic DSBs can be used for configuring devices
with device-specific DSBs, Honeywell does not recommend this.
If the PROFIBUS PA devices are connected to a transparent PROFIBUS PA Coupler, you must use the GENPADSB.
If the PROFIBUS PA devices are connected to a DP/PA Link, Siemens DP/PA link IM-157, you must use the
The PGM block and the Protocol Blockmust be defined.
The PROFIBUS slave devices must be defined in the Field Network Configuration tab of the Protocol
Perform the following steps to configure a GENDSB
Drag-and-drop the Generic DSB (GENDSBDP/GENIODSBDP) block from the DSB library to one of the
The Load Dialog box appears.
The DSB block icon appears under the Protocol Block to which it is assigned.
Double-click the Generic DSB in the Project view.
In the Tag Name, box, typethe name of the DSB (a maximum of 16 characters) or accept the default.
In the Item Namebox, type the item name.
In the Description box, type a brief description (a maximum of 132 characters) of the block.
In the Byte Order list, select the byte order.
You can define the byte order in the little-endian or big-endian format.
In the Associated Asset box, click the
The Point Selection dialog box appears.
Select an asset from those configured in the Enterprise Model Database to set the Scope of Responsibility
(SOR) for the point.
No validation is done at the configuration time. If you enter an asset that does not exist in the points
database, the associated asset for the point reverts to the server point. If the asset does exist but is not an
area-enabled asset, then the first area-enabled asset up the tree is used for the SOR of that device. A
subsequent upload of that device point to Control Builder returns the area-enabled asset and not the original
non-assignable asset entered.
In the Slave Address box, type the address number of the slave device.
The slave device address range is 2 through 125.
This address must be identical to the address of the slave device defined during the field network
For DSB blocks, the State to Load and Post Load State conditions are not applicable. For more information on
loading control strategy components, refer to the Control Building User's Guide.
If you do not select the byte order, an error message "DSBByteOrderNotSelected" appears when you load the DSB