Appendix B. Variable Types And Modbus Register Map; Variable Types - ICP DAS USA iKAN Series User Manual

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
Delimiter
Character
%
The valid range for each type of variable is:
Variable Type
Coil Variables
Integer Variables
Float Variables
System Variables
2
Variable Type
y: System variable
b: Coil
u: Unsigned integer (0~65535)
i: Signed integer (-32768~32767)
f: Float (-3.4E+38 ~ +3.4E+38)
Range
%b000 to %b039
%u000 to %u063
%i000 to %i063
%f128 to %f254
%y000 to %y026
3 to 5
Modbus Address:
3-digit decimal number
X X X