Omron SYSMAC C Series User Manual page 84

Instruction words
Leading edge
Count input
TEMPORARY
MEMORY RELAY (TR)
Ladder diagram
"nt 0002 Q 0003 0004
aie
ie D
0006 ©
At the leading edge (from OFF to ON) of a count input signal, the counter
decrements by a value of 1.
OH) [ TR
TR TR
[rr] (relay number) or Hr (relay number)
Function
Serves as temporary memory relay
Remarks
To program a temporary memory relay, the TR instruction must be used
with an OUT or LD instruction.
The TR instruction is used when a ladder diagram cannot be program-
med with the interlock instructions. In an output branching circuit
consisting of multiple blocks, temporary memory relays are used at each
point. These temporary relays cannot be used in duplicate within the
same block but can be used within different blocks,
Relay numbers can be from 0 to 7.
Coding chart