IDEC SMARTRELAY User Manual page 126

IDEC SmartRelay functions
4.1 Constants and connectors
Amber
Red
Note: The backlight lifetime of the Text Display is 20,000 hours.
Message text character set marker M27
The M27 marker selects between the two character sets that IDEC SmartRelay uses to
display message texts. State 0 corresponds to Character Set 1, and state 1 corresponds to
Character Set 2. If M27=0 (low), IDEC SmartRelay only displays message texts configured
for Character Set 1; If M27=1 (high), IDEC SmartRelay only displays message texts
configured for Character Set 2. If you do not include M27 in the circuit program, message
texts display in the character set that you selected from either WindLGC or an IDEC
SmartRelay device.
Note
• The output of the marker always carries the signal of the previous program cycle. This
value does not change within the same program cycle.
• You can read or write markers from the network. If you have not added any special
markers in the diagram, but written them from the network, they can still work except M27.
So if you want to control character sets by M27, you must add it in the diagram first, and
you can connect M27 to NI blocks to control it from the network.
Shift register bits
IDEC SmartRelay provides read-only shift register bits S1.1 to S4.8. Only the Shift register
(Page 207) special function can modify shift register bit values.
Cursor keys
Up to four cursor keys are available to you, namely C , C , C
Cursor keys are programmed for the circuit program in the same way as other inputs. You
can program cursor keys in the corresponding display Switching IDEC SmartRelay to RUN
mode (Page 74) , and in an active message text (ESC + Key). Cursor keys can save switches
and inputs, and allow operator control of the circuit program. Cursor key inputs from the
FL1F-RD1 are identical to cursor key inputs from the Base Module.
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M28
M30
M29
M31
The color amber means IDEC
SmartRelay is in programming
mode or parameter assignment
mode.
The color amber means Text
Display is in programming mode,
parameter assignment mode or
TDE setting mode.
The color red means IDEC
SmartRelay has a diagnosis
error.
The color red means Text
Display has a diagnostics error.
and C ("C" = "Cursor").
IDEC SmartRelay Manual