Honeywell HC900 - Table 129 XFR Switch Configuration Data; Figure 123 XFR Function Block Example

Function Blocks
XFR Bumpless Analog Transfer Switch Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 437
2/07
Configuration parameters
Table 129 XFR switch configuration data
Properties Group Parameter Index # Parameter Description Value or Selection
Set Transfer Rates
Transfer to X
Rate
0
Rate at which output changes
from Y to X in engineering units
per minute
0 to 99999
Must be set at > = 0
Transfer to Y
Rate
1
Rate at which output changes
from X to Y in engineering units
per minute
0 to 99999
Must be set at > = 0
Example
HFigure 123 shows a Function Block Diagram using a XFR function block. It shows a typical switch action
for a XFR function block.
*SY
X
Y
OUT
YRATE
XRATE
ON
TIME
OFF
Figure 123 XFR function block example