Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 205

Sequence Input Instructions
Operand Specifications
Description
Flags
Precautions
166
Area
CIO Area CIO 000000 to CIO 614315
Work Area W00000 to W51115
Holding Bit Area H00000 to H51115
Auxiliary Bit Area A00000 to A95915
Timer Area T0000 to T4095
Counter Area C0000 to C4095
Task Flag Area TK0000 to TK0031
Condition Flags ER, CY, N, OF, UF, >, =, <, >=, <>, <=, ON, OFF, AER
Clock Pulses 0.02 s, 0.1 s, 0.2 s, 1 s, 1 min
TR Area ---
DM Area ---
EM Area without bank ---
EM Area with bank ---
Indirect DM/EM ---
addresses in binary
Indirect DM/EM ---
addresses in BCD
Constants ---
Data Registers ---
Index Registers ---
Indirect addressing ,IR0 to ,IR15
using Index Registers
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
AND is used for a normally open bit connected in series. AND cannot be
directly connected to the bus bar, and cannot be used at the beginning of a
logic block. If there is no immediate refreshing specification, the specified bit
in I/O memory is read. If there is an immediate refreshing specification, the
status of the Basic Input Unit's input terminal is read.
There are no flags affected by this instruction.
Differentiate up (@) or differentiate down (%) can be specified for AND. If dif-
ferentiate up (@) is specified, the execution condition is turned ON for one
cycle only after the status of the operand bit goes from OFF to ON. If differen-
tiate down (%) is specified, the execution condition is turned ON for one cycle
only after the status of the operand bit goes from ON to OFF.
Immediate refreshing (!) can be specified for AND. An immediate refresh
instruction updates the status of the input bit just before the instruction is exe-
cuted from the Basic Input Unit (but not Basic Input Units on Slave Racks or
for C200H Group 2 Multi-point Input Units).
For AND, it is possible to combine immediate refreshing and up or down differ-
entiation (!@ or !%). If either of these is specified, the input is refreshed from
the Basic Input Unit just before the instruction is executed and the execution
condition is turned ON for one cycle only after the status goes from OFF to
ON, or from ON to OFF.
AND cannot be used for addresses in the DM and EM Areas. Use AND
TST(350) instead.
Section 3-3
AND bit operand