SBC PCD1 Series Manual page 78

Saia-Burgess Controls AG
The following programming rules apply for IL programming:
The display has three modes:
Mode Properties
6-digit The whole display is used to show a number (e.g. 123456)
or one of the standard text strings (e.g. Error or HELP)
2-digit The first four digits have been defined with a previous
instruction (text, e.g. Err), and the last two digits can now
be used to display a number
Free Within the limitations of the 7-segment display, any
mode character string can be displayed
The content of the display is managed with a DSP instruction. DSP instructions may
be used with a constant (e.g. DSP K 0) or a register (e.g DSP R 0) as a parameter.
The effect of the DSP K x instructions is independent of the mode in which they are
invoked, but many of them do affect the mode:
In-
struc-
tion
DSP K 0
DSP K 1
DSP K 2
DSP K 3
DSP K 4
1)
DSP K 5
DSP K 6
1)
DSP K 7
2)
DSP K 8
2)
DSP K 10
DSP K 11
DSP K 12
DSP K 13
DSP K 14
DSP K 15
DSP K 20
DSP K 21
Manual Manual PCD 1 / PCD 2 Series │ D ocument 26 / 737 EN22 │ 2 013-11-26
Display
The whole display is cleared and set to 6-digit
mode
Ξ S A I A Ξ
Ξ P C D 2 Ξ
H E L P
H L P n n
E r r o r
E r r n n
The display is cleared and leading zeros are
displayed from the next DSP R x instruction
The display is cleared and the output restricted
to 2 digits
Places the decimal point at digit no. 0 (far
2)
right, cleared with DSP K 0)
Places the decimal point at digit no. 1 (cleared
2)
with DSP K 0)
In 6-digit mode, places the decimal point at
2)
digit no. 2 (cleared with DSP K 0)
In 6-digit mode, places the decimal point at
2)
digit no. 3 (cleared with DSP K 0)
In 6-digit mode, places the decimal point at
2)
digit no. 4 (cleared with DSP K 0)
In 6-digit mode, places the decimal point at
2)
digit no. 5 (far left, cleared with DSP K 0)
Switch to free mode
3)
In free mode, all segments are moved one
3)
place to the left, a blank digit is inserted, and
the previously leftmost digit is lost
CPUs and expansion housings
Internal LED displays and small terminals
Mode after
instruction
6-digit
6-digit
6-digit
6-digit
2-digit
6-digit
2-digit
6-digit
2-digit
no change
no change
no change
no change
no change
no change
Free mode
Free mode
3
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