Table of Contents
Advertisement
7.2
Status Messages
Two EDP commands, P and ZZ, can be used to
provide status about the indicator. These commands
are described in the following sections.
7.2.1
Using the P EDP Command
The P EDP command returns the current displayed
weight value to the EDP port, along with the units
identifier. If the indicator is in an underrange or
overload condition, the weight value is replaced with
(overload) or
&&&&&&
::::::
7.2.2
Using the ZZ EDP Command
The ZZ EDP command can be used to remotely query
which annunciators are currently displayed on the
indicator front panel. The ZZ command returns the
currently displayed weight and a decimal number
representing the display annunciators currently lit.
The format of the returned data is:
wwwwwwwww zzzzzzzzzzz
where
is the current displayed weight
wwwwwwwww
and
is the annunciator status value (see
zzzzzzzzzz
Table 7-3). If more than one annunciator is lit, the
second number returned is the sum of the values
representing the active annunciators.
7.3
Continuous Output (Stream) Format
Figure 7-1 shows the continuous output format sent to the IQ plus 350 EDP or printer port when the STREAM
parameter (SERIAL menu) is set to either EDP or PRN.
<STX> <POL> <wwwwwww> <UNIT> <G/N> <S> <TERM>
ASCII 02
decimal
Polarity:
<space> = Positive
<–> = Negative
Weight: 7 digits, right-justified, dummy
zeroes, decimal point with no leading
zeroes except for leading zero immediately
preceding the decimal point. Leading
zeroes transmitted as spaces.
(underrange).
Figure 7-1. Continuous Output Data Format
For example, if the annunciator status value returned
on the ZZ command is 8224, the gross and standstill
annunciators are lit: 8224 represents the sum of the
values for the standstill annunciator (8192) and the G
(gross mode) annunciator (32).
Decimal
Value
4
Nicht Geeicht
8
Entry Mode
16
NET
32
G
64
– (minus sign)
128
Center of zero
256
T
1024
Rhombus
2048
P
5096
B
8192
Standstill
Table 7-3. Status Codes Returned on the ZZ Command
G = Gross
N = Net
L = pounds
K = kilograms
T = tons
G = grains
<space> = grams
O = ounces
Annunciator
<CR> <LF>
or <CR>
Status:
<space> = valid
I = Invalid
M = Motion
O = Over/under range
Appendix
35
Hide quick links:
Advertisement
Table of Contents
