Siemens HydroRanger 200 Instruction Manual download pdf (Page 45)

7ML19981FC01 HydroRanger 200 – INSTRUCTION MANUAL Page 31

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Operation

Primary and Secondary Indexes

Primary Index: relates to direct input or output and can refer to relays, communications

ports, and other parameters. In parameters that allow secondary indexes, the primary

index is often referred to as a point.

Secondary Index: relates to previously indexed parameters where the parameter

requires a second index, permitting multiple values on an indexed input or output.

Primary Index

Example Setting: P111[3] = 52

• P111 sets the Relay Control Function

• P111(3) = 52 sets Relay #3 to a value of 52.

Secondary Index

Parameters with a secondary index permit multiple values for a primary index (point). For

example, a volume calculation based on vessel characterization breakpoints requires a

distinct set of breakpoints for each measured point.

Thus the primary index refers to the measurement point, and each secondary index refers

to a characterization breakpoint value.

Accessing a Secondary Index

1. Press MODE and then press DISPLAY to activate secondary index. The

icon appears under the index field.

2. Enter the secondary index, and then enter the values to set the secondary index.

P111

345621

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Siemens HydroRanger 200 Instruction Manual Page 45