C500MP102EV3 Omron, C500MP102EV3 Datasheet - Page 89

• Manufacturer Part Number: C500MP102EV3
• Description: K-TYPE PC MEMORY RACK
• Manufacturer: Omron

Specifications of C500MP102EV3

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

INTERLOCK and INTERLOCK CLEAR – IL(02) and ILC(03)
5-7
78
Precautions
Example
Description
Reset input
HR 000
0002
0003
0004
0005
INTERLOCK and INTERLOCK CLEAR – IL(02) and ILC(03)
Indicates
emergency
situation
Never use an input bit in an normally closed condition on the reset (R) for
KEEP(11) when the input device uses an AC power supply. The delay in
shutting down the PC’s DC power supply (relative to the AC power supply to
the input device) can cause the designated bit of KEEP(11) to be reset. This
situation is shown below.
Bits used in KEEP are not reset in interlocks. Refer to the 5-7 INTERLOCK
and INTERLOCK CLEAR – IL(02) and ILC(03 ) for details.
If a HR bit is used, bit status will be retained even during a power interrup-
tion. KEEP(11) can thus be used to program bits that will maintain status af-
ter restarting the PC following a power interruption. An example of this that
can be used to produce a warning display following a system shutdown for
an emergency situation is shown below. Bits 0002, 0003, and 0004 would be
turned ON to indicate some type of system error. Bit 0005 would be turned
ON to reset the warning display. HR 000, which is turned ON for any of the
three bits which indicates emergency situation, is used to turn ON the warn-
ing indicator through 0500.
KEEP(11) can also be combined with TIM to produce delays in turning bits
ON and OFF. Refer to 5-11-1 TIMER – TIM for details.
IL(02) is always used in conjunction with ILC(03) to create interlocks. Inter-
locks are used to enable branching in the same way as can be achieved with
TR bits, but treatment of instructions between IL(02) and ILC(03) differs from
that with TR bits when the execution condition for IL(02) is OFF. If the execu-
tion condition of IL(02) is ON, the program will be executed as written, with
an ON execution condition used to start each instruction line from the point
where IL(02) is located through ILC(03).
Ladder Symbol
Ladder Symbol
A
S
Input Unit
NEVER
KEEP(11)
0500
R
HR 000
Activates
warning
display
A
Address Instruction
0000
0001
0002
0003
0004
0005
0006
LD
OR
OR
LD
KEEP(11)
LD
OUT
ILC(03)
S
R
IL(02)
KEEP(11)
HR 000
HR
HR
Section 5-7
Operands
0002
0003
0004
0005
0500
000
000