User guide

Instructions
Chapter 18
I/O Message and Communication
18–15
This example assumes that the Comms Servicing Selection bit S:2/15 is clear
and that this is the only active MSG instruction.
Important: You may program the SVC instruction unconditionally.
Immediate Input with Mask IIM Output Instruction
(IIM)
IIM
IMMEDIATE IN w MASK
Slot I:4.0
Mask 00FF
F1 F2 F3 F4 F5
ZOOM on IIM –(IIM)– 2.0.0.0.1
NAME: IMMEDIATE INPUT w/ MASK
SLOT: I1:4.0 0000 0000 0000 0000
MASK: 00FF 00FF
EDT_DAT
HHT Ladder Display:
HHT Zoom Display:
Ladder Diagrams and APS Displays:
(online monitor mode)
This instruction updates input data before the normal input scan. When the
IIM instruction is enabled, the program scan is interrupted. Data from a
specified I/O slot is transferred through a mask to the input data file, making
the data available to instructions following the IIM instruction in the ladder
program.
This instruction operates on the inputs assigned to a particular word of a slot
(16 bits maximum). For the mask, a 1 in an input’s bit position passes data
from the physical input slot to the input data file. A 0 inhibits data from
passing from the source to the destination.
Entering Parameters
SLOT: Specify the slot number and the word number pertaining to the slot.
A slot can have up to 8 words for fixed and SLC 5/01 and 32 words for SLC
5/02.
I:0.0 Inputs of slot 0, word 0 (fixed I/O controller)
I:0.1 Inputs of slot 0, word 1 (fixed I/O controller)
I:1.0 Inputs of slot 1, word 0
Immediate Input with Mask
(IIM)