Link Register (W) - Mitsubishi Electric melsec q00ujcpu User Manual

9.2.13 Link register (W)

(1) Definition
The link register (W) is a memory in the CPU module, which is refreshed with link register (LW) data of an
intelligent function module such as a MELSECNET/H network module.
CPU module
W0
In the link register, numeric data (-32768 to 32767, or 0000
(2) Bit structure of the link register
(a) Bit structure and read/write unit
One point of the link register consists of 16 bits, and data can be read or written in units of 16 bits.
●
Link register data are handled as signed data.
In the case of the hexadecimal notation, 0000
represents a sign bit, decimal values that can be specified are -32768 to 32767.
●
The area range in the link register, which is not used for a MELSECNET/H network module, can be used as a data
register.
9 - 32
Link register
Link refresh
Figure 9.39 Link refresh
b15
Wn
setting range
Figure 9.40 Bit structure of the link register
MELSECNET/H network module
Link register
LW0
to FFFF ) are stored.
H H
to
to FFFF can be stored. However, because the most significant bit
H H
Link refresh
b0