Eaton IQ 150S, User & Installation Manual

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IM02601006E www.eaton.com B-4
IQ 150S/250S B: Modbus Map
B.5.1: Data Formats
Time stamp: Stores a date from 2000 to 2099. Time stamp has a Minimum resolution of 1 second.
The high bits of each time stamp byte are used as flags to record meter state information at the
time of the time stamp. These bits should be masked out, unless needed.
B.5.2: IQ 250S Meter Logs
The IQ 2500S meter has 5 logs: System Event, Alarm (Limits), and 3 Historical logs. Each log is
described below.
1.
System Event (0)
: The System Event log is used to store events which happen in, and to, the
meter. Events include Startup, Reset Commands, Log Retrievals, etc. The System Event Log
Record takes 20 bytes, 14 bytes of which are available when the log is retrieved.
NOTE:
The complete Systems Events table is shown in Section B.5.5, step 1, on page B-19.
2.
Alarm Log (1):
The Alarm Log records the states of the 8 Limits programmed in the meter.
• Whenever a limit goes out (above or below), a record is stored with the value that caused the
limit to go out.
• Whenever a limit returns within limit, a record is stored with the "most out of limit" value for
that limit while it was out of limit.
The Alarm Log Record uses 16 bytes, 10 bytes of which are available when the log is retrieved.
Byte 0 1 2 3 4 5
Value Year Month Day Hour Minute Second
Range 0-99 (+2000) 1-12 1-31 0-23 0-59 0-59
Mask 0x7F 0x0F 0x1F 0x1F 0x3F 0x3F
Byte 0 1 2 3 4 5 6 7 8 9 10 11 12 13
Value timestamp Group Event Mod Chan Param1 Param2 Param3 Param4
Byte 0 1 2 3 4 5 6 7 8 9
Value timestamp direction limit# Value%