1.1 Table of Relays, Memory Areas and Constants
1-17
1.1.6 FP2SH
Item Numbering Function
Relay External input
relay
(X) 8,192 points (X0 to X511F) Turn on or off based on external input.
External output
relay
(Y) 8,192 points (Y0 to Y511F) Externally outputs on or off state.
Internal relay
(* Note 1)
(R) 14.192 points (R0 to R886F) Relay which turns on or off only within pro-
gram.
Link relay
(* Note 1)
(L) 10,240 points (L0 to L639F) This relay is a shared relay used for
MEWNET link system.
Timer (T) 3,072 points
If a TM instruction has timed out, the con-
(* Notes 1 and 2)
tact with the same number turns on
Pulse relay (P) 2,048 points (P0 to P127F) This relay is used to turn on only for one
scan duration programmed with the OT
"
and OT# instructions.
Error alarm relay (E) 2,048 points (E0 to E2047) If turned on while the unit is running, this
relay stores the history in a dedicated buff-
er.
Program this relay so that it is turned on at
the time of abnormality.
Special
internal relay
(R) 176 points (R9000 to R910F) Relay which turns on or off based on spe-
cific conditions and is used as a flag.
Memory
area
External input
relay
(WX) 512 words (WX0 to WX511) Code for specifying 16 external input points
as one word (16 bits) of data.
External output
relay
(WY) 512 words (WY0 to WY511) Code for specifying 16 external output
points as one word (16 bits) of data.
Internal relay (WR) 887 words (WR0 to WR886) Code for specifying 16 internal relay points
as one word (16 bits) of data.
Link relay (WL) 640 words (WL0 to WL639) Code for specifying 16 link relay points as
one word (16 bits) of data.
Data register
(* Note 1)
(DT) 10,240 words
(DT0 to DT10239)
Data memory used in program. Data is
handled in 16-bit units (one word).
Link data register
(* Note 1)
(LD) 8,448 words (LD0 to LD8447) This is a shared data memory which is
used within the MEWNET link system.
Data is handled in 16-bit units (one word).
Timer/Counter
set value area
(* Note 1)
(SV) 3,072 words
(SV0 to SV3071)
Data memory for storing a target value of a
timer and an initial value of a counter.
Stores by timer/counter number.
Timer/Counter
elapsed value area
(* Note 1)
(EV) 3,072 words
(EV0 to EV3071)
Data memory for storing the elapsed value
during operation of a timer/counter. Stores
by timer/ counter number.
File register (FL) 98,295 words Data memory used in program. Data is
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