Read Controller Status - Omron KM50 Communications Manual

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Read Controller Status

This service reads the operating status and error status.
• Service Request PDU
MRC SRC
0 6 0 1
2 2
• Service Response PDU
MRC SRC Response code
0 6 0 1
2 2
(1) Operating Status
Operating status
00
01
(2) Related Information
7 6 5 4
(3) Response Code
• Normal Completion
Response code
0000
• Error Completion
Response code
1001
Opera- Related
ting infor-
status mation
4 2 2
Description
Measurements are being performed normally.
Measurements are stopped.
3 2 1 0 Bit position
Voltage input overflow (0: No overflow, 1: Overflow)
An overflow occurs when the following voltages are
exceeded without a VT or 110% of the selected VT value
is exceeded.
Single-phase, Two-wire Circuits
Single-phase, Three-wire Circuits
Three-phase, Three-wire Circuits
Three-phase, Four-wire Circuits (KM50-E Only)
Current input overflow (0: No overflow, 1: Overflow)
An overcurrent occurs when the measured current exceeds
120% of the rated CT primary current for the selected CT type.
Undervoltage input (0: No undervoltage, 1: Undervoltage)
Name
Normal completion
Error name
Command too long
2. 3 Detailed Descriptions of Services
KM50-C: Line voltage of 264 V
KM50-E: Line voltage of 528 V (480 × 110%)
Vrn-Vsn phase voltage of 132 V or Vrs line voltage of
264 V
KM50-C: Line voltage of 264V (240 × 110%)
KM50-E: Line voltage of 528 V (480 × 110%)
KM50-E: Phase voltage of 304.7 V (277 × 110%)
An undervoltage is detected when the measured
voltage is less than 85% of the rated voltage or less
than 85% of the selected VT value.
Description
No errors were detected.
Cause
The command is too long.
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