LIR/TNB

Hello everyone,

   can anybody help me about the LIR/TNB instruction in my program.the attachment is part of my program.

There are LIB/TNB instructions in FB152.The PLC system has CP523 and CP524 card.I think the TNB is about CP523,but I don't know the source and destination address refer to.Maybe TNB want to copy the part of RAM to Intelligent I/O area,but what is the intelligent I/O,how it arrange the addresses?Thanks in advance!

Dear NICHOLAS,

LIR 0 / LIR 2 : Load the contents of a memory word (addressed by ACCUM 1) indirectly into the register (0=ACCUM 1; 2=ACCUM 2).

FB152 contains these lines of code:

L   KH E400

L   KH 019A

+F

LIR   0

Here contents of the memory word with address E59A are loaded into Accumulator 1.

Hope that helps.