Effective Date: 2/04
IL17574C
Page 5-5
IQ 300
Effective Date: 2/04
Page 5-5
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Field Name
Example
(Hex)
Slave Address
TBD
Function
04
Byte Count
04
Data Hi (Register X (1800))
01
Data Lo (Register X (1800))
02
Data Hi (Register X+1 (1801))
00
Data Lo (Register X+1 (1801))
0A
Error Check (LRC or CRC)
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Table 5.3A Example Responses
5.5 UNDERSTANDING ADDRESS 1800 AND 1801
Address 1800 and 1801 are made up of three fields, Primary, Secondary and
Cause. The Primary field is the high byte of address 1800. The Secondary field is
the low byte of 1800. The Cause field is all of address 1801. Value found in these
three fields are defined below.
Definition Cause
Field
Energy Error
2 Decimal
RAM Error
39 Decimal
ROM Error
43 Decimal
Calibration Error
113 Decimal
External RAM Error
44 Decimal
Setpoint Error
77 Decimal
No Error
1 Decimal
Definition Primary Secondary
Active
9 Decimal
0 Decimal
Alarm
4 Decimal
8 Decimal
