FieldServer Optomux FS-8700-17 - Manual (Page 13)

FS-8700-17_Opto22.doc Manual Page 11 of 24
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Appendix A.1.2. Map Descript or Example - Static Specificati on Using a Mask to Address specific module positions
There may be occasions when it is not suitable to use address and length, e.g. when addressing non-consecutive Optomux module positions or when using a
command that affects all module positions. The driver provides an alternate method for module position specification by allowing a mask to be specified as a
parameter in the CSV file. The mask may be specified in decimal or hexadecimal format. In this example, module positions 1 and 5 are pulsed.
The mask specifies the positions (1-16) of a module that will be affected by a command.
When this parameter is used and its value is non zero then the driver does not consider the data contained in the position defining array even if it is defined.
The value of the mask may be specified in hexadecimal or in decimal.
To specify a number in hexadecimal the number must be prefixed with 0x and have a maximum of 4 digits.
Examples:
Decimal: 257 -> Indicates the 1
st and 9 th positions.
Hexadecimal: 0x0101 -> indicates the 1 st and 9 th positions.
Map_Descriptor_Name , Data_Array_Name , Data_Array_Offset , Function , Node_Name , Length , Scan_Interval , Opto22_Mask , Opto22_Function
PULSE77 , TIME_DATA , 0 , Wrbc , DEV77 , 1 , 0.0s , 0x0011 , START ON PULSE
Module positions are specified in hexadecimal
0x0001 = Module Position 1
0x0002 = Module Position 2
0x0003 = Module Positions 1 & 2
…..
This function turns on the specified module positions for a
specified period. Unspecified positions (mask bit positions equal
zero) are not affected by the command.