
Control Block Description
ADDvantage-32 PLUS
4-16
4.12 BALANCE
The Balance block switches from one control scheme to another without changing the
current operating reference.
FIGURE 4-12. BALANCE BLOCK
1. Inputs
REF: Analog
FDBK: Analog
BAL: Bit
RET: Bit
2. Outputs
OUT: Analog
DIF: Analog
3. Implementation
On a falling edge of the BAL input, DIF will be sampled as REF - FDBK. "DIF" will not
change until the next falling edge of the BAL input.
When the BAL input is low, OUT = REF - DIF.
BAL
FDBK
REF
TIME
M
A
G
N
I
T
U
D
E
BALANCE
OUTPUT
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