Rockwell Automation 1404-M4_M5_M6_M8 Powermonitor 3000 User Manual, Firmware rev. 3.0 or LATER - Manual (Page 182)

182 Publication 1404-UM001F-EN-P - November 2009
Chapter 8 Advanced Features
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Voltage: three RMS voltage results that express line-to-line (delta
wiring modes) or line-to-neutral (all other wiring modes) for the
current Cycle number. Range 0.0…999.0 * 10
21
•
Current: four RMS current results (L1, L2, L3, L4) for the current
Cycle number. Range 0.0…999.0 * 10
21
•
Trigger channel: indicates which channel caused the transient
capture. 1=V1, 2=I1, 3=V2, 4=I2, 5=V3, 6=I3, 7=I4
•
Index at trigger: the value of the transient index at the time of
the capture. Range -999.0 * 10
3
…999.0 * 10
3
•
Voltage and Current trigger thresholds: at the time of the
transient capture. Range 0.0…999.0 * 10
3
•
Capture ID: unique identifier that increments by 1 s to 30,000
and then rolls over to 0
Read this data table by using an indexed read method. Select the
Read-back Mode, Capture and Cycle by writing to the
Transient
Analysis Configuration/Read-back Select table.
Reading Transient Capture Data
The data client sets up the read-back configuration with a table write
to the
Transient Capture Clear/Read-back Data Select . Transient
capture data is not available via Modbus communication. This
read/write table of 13 integer elements contains the following:
•
Password: required for Clear command, use -1 for read-back
selections
•
DeviceNet unique write identifier
•
Capture number: selects one of six captures or returns the last
capture number selected. Range: 0 = most recent capture
initiated via communication, 1…6 = capture #1…#6, default 1.
•
Channel number: selects a channel number or returns the last
channel number selected. Range: 1 = V1, 2 = I1, 3 = V2, 4 = I2, 5
= V3, 6 = I3, 7 = I4, default 1.
•
Block number: selects a data block for the next read or returns
the last block selected. Range depends on communication type.
See below. Default 1.
•
Read-back mode: selects a read-back mode or returns the last
mode selected. Range 0…2, default 0. See below.
•
Clear command: clears one or all captures. Always returns 0. See
below
•
Reserved elements: must be zero (0) on a write, returns 0.