KEYENCE KV-D20 - Manual (Page 38)

2. Overview and Operation
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2.5 Device Mode
This section includes an overview and description of operation of the device mode.
Device mode
This mode corresponds to the device mode of the Access Window of the KV unit.
The device mode allows you to display all values of devices: data memory (DM),
temporary memory (TM), timers (T), counters (C), high-speed counters (CTH),
high-speed counter comparators (CTC), trimmers (TRM), and relays (RLY). (T, C,
CTH, and CTC values can be displayed only when they are described in the ladder
program).
Moreover, you can change the values of all devices except for TRM and the relays
set to 8-bit ON/OFF indication.
• Pressing the key changes between decimal and hexadecimal notation.
(This change switches relays between ON/OFF display and 8-bit ON/OFF
indication. When the 8-bit ON/OFF indication is set, these eight bits cannot be
turned ON or OFF.)
• When the 8-bit ON/OFF indication is set, the relay numbers 0 through 7 (8
through 15) are assigned from the right to left.
When the 8-bit ON/OFF indication is reset to the ON/OFF display, the device
that was displayed on the first line comes to the top of the screen.
Example
• In the hexadecimal notation, "$" is prefixed to the numeric value and the zero-
suppression function is disabled.
• In the device mode, contact comments are not displayed but only device num-
bers are displayed.
• Devices of consecutive numbers are displayed on four lines.
• In the device mode, the attributes specified in DM1680 through DM1699 are not
reflected.
• CTC and CTH can be changed to a 24-bit display with the MEMSW instruction.
In this case, other devices remain at a 16-bit display.
Data memory (Initial screen)
Relay
Trimmer
High-speed counter comparator Counter
Timer
Temporary data memory
(value cannot
be changed)
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