Rievtech PR-12 Series, User Manual And Programmers Manual

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213
S
SCR
Read /
write Read /
write Read /
write Read /
write
NO NO
7.2 Direct and indirect addressing
When you write the program, you can use the three ways to address instruction:
1.Direct addressing
2.Symbol addressing
3.indirect addressing
Direct addressing
PLC can directly specify the memory area, size, and location;
In order to read/write a bit in the memory area, you need to specify the address. The
address Includes memory area identifier, byte address, a period and number.
Example:
Specifying byte
、
word and double word addresses are similar to specifying bit
address.
Example: