FieldServer FS-8700-78 instruction manual Driver Manual 6.1.5 AdvancedExample

Driver Manual

6.1.5AdvancedExample 2

The DAP-II Status query returns 14 bytes of errors & status information. The arrangement and meaning of these bytes is defined by the Data Aire Corporation and is also dependent on the type of DAPII module being polled.

Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, node_name, Address, Length, DA_Func, DA_Field,									Scan_Interval
A1,	DA_AI1,	0,	rdbc,	Node_A,	0,	1 ,	dap-stat,	errors	,5
A2,	DA_DI1,	1,	passive,	Node_A,	0,	1 ,	dap-stat,	bitErrors	,5

The 'errors' key word returns 14 bytes, thus we DA_AI1 should be a BYTE array. Each byte will have values 0-15 to represent the value of the bits in each byte.

The bitErrors extracts the same data from the DAP but presents it as a series of 14x8 bits. Thus make

Slave is a DAP and we are reading status information.

Data arrangement and meaning of each error is defined by Data Aire Corp.

Example: Bit 24 is a LOW TEMP

WARNING for DAPII-044/8/9 units.

Example: Bit 09 is a HUMIDITY SENSOR PROBLEM for a DAPII-080 unit.

BitErrors is a synonym for errors. The data is extracted using a different data format.

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