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iKAN Series Display User Manual v 1.0.1 Page: 103
Appendix B. Variable Types and Modbus Register Map
B.1. Variable Types
The iKAN series device allows data related to items such as the Ethernet configuration, the RTC
value, and other information, to be inserted into a message as a system variable.
The format for using a system variable in a message has a length of 5 bytes, as follows:
1
2
3 to 5
Delimiter
Character
Variable Type
Modbus Address:
3-digit decimal number
%
y: System variable
X
X
X
b: Coil
u: Unsigned integer (0 to 65535)
i: Signed integer (-32768 to 32767)
f: Float (-3.4E+38 to +3.4E+38)
The valid range for each type of variable is:
Variable Type
Range
Coil Variables
%b000 to %b039
Integer Variables
%u000 to %u063
%i000 to %i063
Float Variables
%f128 to %f254
System Variables
%y000 to %y026