Using The Xe Edp Command; Status Messages; Using The P Edp Command; Using The Zz Edp Command - Rice Lake Revolution SURVIVOR 420HE Installation Manual

1.1.2

Using the XE EDP Command

The XE EDP command can be used to remotely query
the 420 Plus for the error conditions shown on the front
panel. The XE command returns two 5-digit numbers
in the format:
xxxxx yyyyy
where contains a decimal representation of any
xxxxx
existing error conditions as described in Table 1-2.
If more than one error condition exists, the number
returned is the sum of the values representing the error
conditions. For example, if the XE command returns
the number 1040, this value represents the sum of an A/
D reference error (1024) and an A/D calibration
checksum error (16).
The second number returned (
assignments as shown in Table 1-2 to indicate whether
the test for the error condition was run. For example,
the value = 50815 represents the decimal
yyyyy
equivalent of the binary value 1100 0110 0111 1111.
Using the bit assignments in Table 1-2, this value
indicates all tests were run.
Error
Code Description
0x0001 EEPROM Error
Virgin EEPROM
0x0002
Config Parameter Checksum 0000 0000 0000 0100
0x0004
0x0008 Load Cell Checksum
0x0010 A/D Calibration Checksum
0x0020 Print Formats Checksum
XA Internal RAM Error
0x0040
External RAM Error
0x0080
0x0100 Reserved
0x0200 ADC Physical Error
ADC Reference
0x0400
Count Error
0x0800
0x1000 Reserved
0x2000 Display Range
ADC Range
0x4000
Gross Limit
0x8000
0x10000 - 0x80000000
Table 1-2. Error Codes Returned on XE Command
) uses the same bit
yyyyy
Binary Value
0000 0000 0000 0001
0000 0000 0000 0010
0000 0000 0000 1000
0000 0000 0001 0000
0000 0000 0010 0000
0000 0000 0100 0000
0000 0000 1000 0000
0000 0001 0000 0000
0000 0010 0000 0000
0000 0100 0000 0000
0000 1000 0000 0000
0001 0000 0000 0000
0010 0000 0000 0000
0100 0000 0000 0000
1000 0000 0000 0000
Reserved
1.2

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.
1.2.1

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
&&&&&& ::::::
1.2.2

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 LED annunciators currently lit. The
format of the returned data is:
wwwwww uu zzz
where is the current displayed weight and
wwwwww uu
units, is the annunciator status value (see Table 1-3).
zzz
If more than one annunciator is lit, the second number
returned is the sum of the values representing the active
annunciators.
If the annunciator status value returned on
Example:
the ZZ command is 145, the gross, standstill, and lb
annunciators are lit. 145 represents the sum of the
values for the standstill annunciator (128), gross mode
annunciator (16), and the lb/primary units annunciator
(1).
Decimal
Value
1 lb/primary units
2 kg/secondary units
16 Gross
32 Net
64 Center of zero
128 Standstill
Table 1-3. Status Codes Returned on the ZZ Command
(underrange).
Annunciator
39