Contec CONPROSYS nano CPSN-PCB271-S1-041 Reference Manual page 73

CPSN-SSI-4C
I/O Mapping Name
SSI input data
SSI input data
(Industrial value)
*1 SSI input data details
Conversion formula:
Temperature (°C) = Temperature data / 1024
Conversion examples:
Temperature (°C)
8192
1024
1
1/1024
0
-1/1024
-1
-273.15
*2 Temperature data are values obtained by converting the lower 24 bits (D0 to D23) of SSI data to
a signed 32-bit integer.
When the signed bit is "0": The MSB (D24-D31) is "00"
When the signed bit is "1": The MSB (D24-D31) is "FF"
*3 The temperature value (°C) is returned in single-precision floating- point number type.
For example, if the temperature is 12.3°C, "12.3" will be set.
This is supported when using firmware Ver1.30, and with definition information Ver1.1.0.0 or later
versions for the CPSN-SSI-4C.
When the firmware is Ver1.20 or earlier versions, use the Ver1.0.0.0 definition information.
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Basic Programming
CPSN-PCB271-S1-041 Reference Manual (Software)
Notation on CODESYS
ssi input channel 0-3
ssi input
(industrial value)
channel 0-3
SSI data(h)
— 73 —
—
Size Number Access
32bit 4
32bit 4
7FFFFF
100000
000400
000001
000000
FFFFFF
FFFC00
FBBB67
Remarks
R *1
R *3
Temperature data (h) *2
007FFFFF
00100000
00000400
00000001
00000000
FFFFFFFF
FFFFFC00
FFFBBB67