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Client side map descriptor parameters, Fieldserver related map descriptor parameters, Driver related map descriptor parameters – FieldServer FS-8700-66 User Manual

Page 11: Timing parameters

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FS-8700-66 GE-SNP Driver Manual

Page 11 of 28

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5.3

Client Side Map Descriptor Parameters

5.3.1 FieldServer Related Map Descriptor Parameters

Column Title

Function

Legal Values

Map_Descriptor_Name Name of this Map Descriptor

Up to 32 alphanumeric characters

Data_Array_Name

Name of Data Array where data is to be stored in
the FieldServer

One of the Data Array names from
Section 4

Data_Array_Offset

Starting location in Data Array

0 to maximum specified in Section
4

Function

Function of Client Map Descriptor

Rdbc, Wrbc, Wrbx

5.3.2 Driver Related Map Descriptor Parameters

Column
Title

Function

Legal Values

Node_Name Name of Node to fetch data from

One of the Node names
specified in Section 5.2

Data_Type

Data type

Discrete Inputs (%I)
Discrete Outputs (%Q)
Discrete Temporaries (%T)
Discrete Internals (%M)
Genius Global Data (%G)
Analog Inputs (%AI)
Analog Outputs (%AQ)
Registers (%R)
%SA Discrete
%SB Discrete
%SC Discrete
%S Discrete (%S)

Length

Length of Map Descriptor. Length may not exceed the table in the
PLC

1-1000

Address

Starting address of read block / write block. The 1st element of
each Data type Table is referred to as address one.

1 , 2 , 3
Positive whole numbers

Format*

BIT tables are normally read by reading whole Bytes at a time (If
the Length is 10 then 10 Bytes of data are read and placed in 10
Data Array locations). This parameter can be used to read BITs
instead. (If the Length is 10 then 10 BITs are read and each BIT is
stored in its own location.)

BIT, Byte
The format for %AI, %AQ
and %R cannot be changed.

GE_Func*

This parameter is only specified when a write Map Descriptor is
created to change the privilege level.

CPL, RW

5.3.3 Timing Parameters

Column Title

Function

Legal Values

Scan_Interval Rate at which data is polled ≥0.1s