Cameron Scanner 3100, Manual

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1. Convert the decimal format into binary format.
decimal format = 33
binary format = 32b 0000 0000 0000 0000 0000 0000 0010 0001
2. Refer to the Enron Status Decoder, page 90 to decode the status information. In this example, PAR and INA are
active status.
Enron Event Record Format
Parameter Data Type
Status INT32
Address INT32
Time (HHMMSS) FP
Date (MMDDYY) FP
As-Found FP
As-Left FP
The status parameter in the event record can be decoded with the following table:
Alarm Decoding
Description Bit
<Unassigned> 0-8
User Change/Event 9
Low Low Alarm 10
Low Alarm 11
Hi Alarm 12
Hi Hi Alarm 13
<Unassigned> 14
Alarm Set/Reset (1 = Set, 0 = Reset) 15
Log Capacity (Scanner 3100)
Log Type Device Capacity Enron Capacity
Interval Logs 24576 to 6144* 1024
Daily Logs 2048 512
Event Logs 98304 4096
* Varies with configuration of log record size
Log Capacity (Slave Device)
Log Type Device Capacity Enron Capacity
Interval Logs 12288 1024
Daily Logs 1024 512
As-Found/As-Left Value Types
Value Type Description
Unused Floating point 0.0
User ID User Index Number in floating point format
Alarm Value Floating point representation of a register of any data type
Object Index Floating point index number of the object index (ie: Gas Stream 4 = 4)
Slave Index Floating point index number of the slave device
91
Scanner 3100 Modbus Protocol Section 1