Problems with EPICS variables for BEAM position

We added EPICS variables to the root file to perform the beamline 
data analysis. But we noticed that the following five BPM04A variables 
in the root file are IDENTICAL.

94	IPM1H04A	3	BeamLine	
95	IPM1H04A.XPOS	23	BeamLine	IPM1H04A.XPOS
96	IPM1H04A.XSOF	2	BeamLine	Survey X offset bpmA
97	IPM1H04A.YPOS	23	BeamLine	IPM1H04A.YPOS
98	IPM1H04A.YSOF	2	BeamLine	Survey Y offset bpmA
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Similarly, EPM04B vriables are also identical.

99	IPM1H04B	3	BeamLine	
100	IPM1H04B.XPOS	23	BeamLine	IPM1H04B.XPOS
101	IPM1H04B.XSOF	2	BeamLine	Survey X offset bpmB
102	IPM1H04B.YPOS	23	BeamLine	IPM1H04B.YPOS
103	IPM1H04B.YSOF	2	BeamLine	Survey Y offset bpmB

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The HALOG indicates that they are different.
Example: Values from the start-of-the-run entry for Run #3368

IPM1C12.XPOS : -0.0208923
IPM1C12.YPOS : 0.120401
IPM1H04A.XPOS : 0.65023
IPM1H04A.YPOS : 1.37939
IPM1H04B.XPOS : -0.0744992
IPM1H04B.YPOS : 0.15006
Survey X offset bpmA : -0.63
Survey Y offset bpmA : -0.9
Survey X offset bpmB : 0.77
Survey Y offset bpmB : -1

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Maybe there is a software error in the analyzer ??