Omron CP - PROGRAMMING MANUAL 05-2007 - IR0+(++) to,IR15+(++),-(- -)IR0 To, -(- -)IR15

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Step Instructions Section 3-21
When defining the beginning of a step, a control bit is specified as follows:.
When defining the end of a step a control bit is not specified as follows:
Variations
Applicable Program Areas
Operand Specifications
Description SNXT(009)
SNXT(009) is used in the following three ways:
1,2,3... 1. To start step programming execution.
2. To proceed to the next step control bit.
3. To end step programming execution.
The step programming area is from the first STEP(008) instruction (which
always takes a control bit) to the last STEP(008) instruction (which never
takes a control bit).
STEP(008)
B
B: Bit
STEP(008)
Variations Executed Each Cycle for ON Condition STEP(008)/
SNXT(009)
Executed Once for Upward Differentiation Not supported
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
Not allowed OK Not allowed Not allowed
Area B
CIO Area ---
Work Area W0.00 to W511.15
Holding Bit Area ---
Auxiliary Bit Area ---
Timer Area ---
Counter Area ---
DM Area ---
Indirect DM addresses
in binary
---
Indirect DM addresses
in BCD
---
Constants ---
Data Registers ---
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15