IMO iSmart V4 - Function Block

Chapter 6 FBD Block Diagram Programming 134
FBD system memory space
The size of a FBD program in the iSmart is limited by the memory space (memory used by the blocks).
Resources available in iSmart:
Block number
System memory (byte)
500
10000
※ Each FBD block’s size is not restricted, it depends on its function.
※ Function Block includes three kinds of function: special function, adjust-controlling function, and communication
function. Function type and number are shown in the table below.
Function type
Number
special function
Timer (T)
250
Counter (C)
250
RTC (R)
250
Analog Comparator (G)
250
adjust-controlling function
Addition and Subtraction (AS)
250
Multiplication and Division (MD)
250
PID control (PI)
30
Multiplexer (MX)
250
Analog Ramp control (AR)
30
data register (DR)
240
communication function
Modbus instruction (MU)
250