TotalFlow XRC6490, Руководство пользователя

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A-20
18.
Pulse Operations are executed when the corresponding register in array 55 is read. The
registers in array 52 contain the value that is used as the pulse interval . The register in array
53contains the trigger input.. The result of the pulse operation is returned in the corresponding
register in array 55.
19.
Limit Operations are executed when the corresponding register in array 61 is read. The registers
in array 60 contain the input to the operation. The registers in array 57 are used as the high limit
values for the input data. The registers in array 58 are used as the low limit values for the input
data. The registers in array 59 specify the value in engineering units per second that the output
is allowed to change in response to the input. The result of the limit operation is returned in the
corresponding register in array 61.
20.
Scale Operations are executed when the corresponding register in array 68 is read. The
registers in array 67 contain the input to the operation. The registers in array 63 are used as the
high limit values for the input data. The registers in array 64 are used as the low limit values for
the input data. The registers in array 65 are used as the high limit values for the output data. The
registers in array 66 are used as the low limit values for the output data. The result of the scale
operation is returned in the corresponding register in array 68.
21.
PID Operations are executed when the corresponding register in array 78 is read. The registers
in array 70 contain the input to the operation. The registers in array 71 are used as the set points
for the operation. The registers in array 72 are used as the dead band values for the set points
and the inputs. The registers in array 73 are used as the proportional gain of the operation. The
registers in array 74 are used as the integral reset values of the operation. The registers in array
75 are used as the derivative rate of the operation. The registers in array 76 are used for the
auto (1) / manual (0) mode of the operation. The registers in array 77 are used for the action (
direct =0, reverse=1) of the operation. The result of the PID operation is returned in the
corresponding register in array 78.
22.
The value in this register is either a 0 to disable associated descriptors or a 1 to enable the
associated descriptors.
23.
Register 255.10 contains the number of Select Operations. It determines the size of arrays.28
thru 32.
24.
Register 255.12 contains the number of Lag Operations. It determines the size of arrays 33 thru
36.
25.
Register 255.14 contains the number of Lead Operations. It determines the size of arrays 37
thru 40.
26.
Register 255.16 contains the number of Queue Operations. It determines the size of arrays 41
thru 46.
27.
Register 255.18 contains the number of Ramp Operations. It determines the size of arrays 47
thru 50.
28.
Register 255.20 contains the number of Pulse Operations. It determines the size of arrays 51
thru 55.
29.
Register 255.22 contains the number of Limit Operations. It determines the size of the arrays 56
thru 61.
30.
Register 255.24 contains the number of Scale Operations. It determines the size of the arrays 62
thru 68.
31.
Register 255.26 contains the number of PID Operations. It determines the size of the arrays 69
thru 78.