Panasonic FP Series

Conversion instructions
682
Part III FP Instructions
F252_ACHK
ASCII data check
 If the results are correct, the special internal relay (R900B) turns on.
 If the results are incorrect, the special internal relay (R900B) turns off.
For an detailed description of s1_Control and n_ConversionMethod, please refer to F251_ATOB.
PLC types
Availability of F252_ACHK (see page 1323)
Variable Data type Function
s1_Control STRING Control string
D16
+
-
D:
H:
converts to decimal ASCII data
converts to hexadecimal ASCII data
Reverse direction
Normal direction
16: converts in 16-bit (1-word) units
32: converts in 32-bit (2-word) units
s2_AsciiData ANY Starting area for storing ASCII data
n_Conversion Method ANY16 16-bit equivalent constant or 16-bit area for storing conversion method
For Relay T/C Register Constant
s1_Control WX WY WR WL SV EV DT LD - -
s2_AsciiData WX WY WR WL SV EV DT LD FL -
n_Conversion Method WX WY WR WL SV EV DT LD - dec or hex
No. IEC
address
Set If
R9007 %MX0.900.7 permanently
R9008
%MX0.900.8 for an instant
 there is an error in the control string specified by s1_Control.
 normal direction (+) is specified in s1_Control when the format is
decimal.
 the number of ASCII characters per converted
 unit specified by n_ConversionMethod exceeds 4 for 16-bit data or 8
for 32-bit data when hexadecimal format is specifed by s1_Control.
 0 is specified for the no. of 16- or 32-bit (1- or 2-word) units to be
converted in n_ConversionMethod.
 the number of 16- or 32-bit decimal numbers to be converted specified
 by n_ConversionMethod exceeds the area for storing ASCII data.
 the converted result exceeds the area.
Description
Checks whether the ASCII codes stored in the area specified by s2_AsciiData can be converted
correctly using the conversion method specified in by n_ConversionMethod and the 4 control
characters specified by s1_Control.
Data types
Operands
Error flags