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FS-8700-01 Modbus RTU/ASCIIFS-8700-01_Modbus_RTU.doc Driver Manual Page 5 of 21

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4 DATA ARRAY PARAMETERS

Data Arrays are “protocol neutral” data buffers for storage of data to be passed between protocols. It is necessary

to declare the data format of each of the Data Arrays to facilitate correct storage of the relevant data.

Section Title

Data_Arrays

Column Title

Function

Legal Values

Data_Array_Name

Provide name for Data Array

Up to 15 alphanumeric characters

Data_Array_Format

Provide data format. Each Data Array can only take

on one format.

FLOAT, BIT, UInt16, SInt16,

Packed_Bit, Byte, Packed_Byte,

Swapped_Byte

Data_Array_Length

Number of Data Objects. Must be larger than the

data storage area required by the Map Descriptors

for the data being placed in this array.

1-10, 000

Example

// Data Arrays

Data_Arrays

Data_Array_Name

, Data_Array_Format

, Data_Array_Length

DA_AI_01

, UInt16

, 200

DA_AO_01

, UInt16

, 200

DA_DI_01

, Bit

, 200

DA_DO_01

, Bit

, 200

1 2 3 4 5 6 7 8 9 10 ... 20 21

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