Mitsubishi MELSEC-A Series Operating Manual page 147

[Explanation]
(1
1
The special-function head I/O number and the buffer memory address
are designated and
is
monitored.
(a) Designate the head I/O number in the first 2 digits when the head
I/O number of the special-function module
is represented in 3 digits.
(b) The head address of a buffer memory can be designated in decimal
or hexadecimal.
The buffer memory monitoring address display is decimal if the head
address is designated in decimal. If it is designated in hexadecimal,
the address is displayed in hexadecimal.
When a special-function module is not installed in the designated head
I/O number or when a designated
address does not have a buffer
memory, an address error is displayed.
The display format of a value can be changed by pressing the [HELP]
key. (Hexadecimal/octal/ASCII/decimal)
When changing a display format, do so in accordance with the indicated
display contents (see Section 6.6.4).
Pressing the [END]
or
[CLEAR] keys returns to the
"1
:MONITOR" menu.
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