Rice Lake SURVIVOR 420HE Hostile Environment - Installation Manual - Manual (Page 43)

420HE Installation Manual - Appendix 39
7.1.2 Using the XE EDP Command
The XE EDP command can be used to remotely query
the
420HE for the error conditions shown on the front
panel. The XE command returns two 5-digit numbers
in the format:
xxxxx yyyyy
where xxxxx contains a decimal representation of any
existing error conditions as described in Table 7-2.
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 ( yyyyy ) uses the same bit
assignments as shown in Table 7-2 to indicate whether
the test for the error condition was run. For example,
the value
y yyyy = 50815 represents the decimal
equivalent of the binary value 1100 0110 0111 1111.
Using the bit assignments in Table 7-2, this value
indicates all tests were run.
Error
Code Description Binary Value
0x0001 EEPROM Error 0000 0000 0000 0001
0x0002 Virgin EEPROM 0000 0000 0000 0010
0x0004 Config Parameter Checksum 0000 0000 0000 0100
0x0008 Load Cell Checksum 0000 0000 0000 1000
0x0010 A/D Calibration Checksum 0000 0000 0001 0000
0x0020 Print Formats Checksum 0000 0000 0010 0000
0x0040 XA Internal RAM Error 0000 0000 0100 0000
0x0080 External RAM Error 0000 0000 1000 0000
0x0100 Reserved 0000 0001 0000 0000
0x0200 ADC Physical Error 0000 0010 0000 0000
0x0400 ADC Reference 0000 0100 0000 0000
0x0800 Count Error 0000 1000 0000 0000
0x1000 Reserved 0001 0000 0000 0000
0x2000 Display Range 0010 0000 0000 0000
0x4000 ADC Range 0100 0000 0000 0000
0x8000 Gross Limit 1000 0000 0000 0000
0x10000 - 0x80000000 Reserved
Table 7-2. Error Codes Returned on XE Command
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 :::::: (underrange).
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 LED annunciators currently lit. The
format of the returned data is:
wwwwww uu zzz
where wwwwww uu is the current displayed weight and
units, zzz is the annunciator status value (see Table 7-3).
If more than one annunciator is lit, the second number
returned is the sum of the values representing the active
annunciators.
Example: If the annunciator status value returned on
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).
Table 7-3. Status Codes Returned on the ZZ Command
Decimal
Value Annunciator
1 lb/primary units
2 kg/secondary units
16 Gross
32 Net
64 Center of zero
128 Standstill