Register
Number
XVG/eXVG Parameters
Name
Write
Access
Description Type
7072 7073 IDM_FVOLTSNEG15 RO Fault Log, VoltsNeg15 at time of fault Float
7074 7075 IDM_TEMPAMB W3 Approx. ambient temp. of electronics cavity, deg C Float
7076 7077 IDM_AUTOADCAGAIN RO AUTO ADC A gain, range 0.95 to 1.05 Float
7078 7079 IDM_AUTOADCBGAIN RO AUTO ADC B gain, range 0.95 to 1.05 Float
7080 7081 IDM_AUTOADCAOFF RO AUTO ADC A offset, range -80 to 80 counts Float
7082 7083 IDM_AUTOADCBOFF RO AUTO ADC B offset, range -80 to 80 counts Float
7084 7085 IDM_VOLTSPOS15 RO +15V supply voltage, Volts Float
7086 7087 IDM_VOLTSNEG15 RO -15V supply voltage, Volts Float
7088 7089 IDM_XMEAS RO Same as PosInInches Float
7090 7091 IDM_XCMD RO Commanded position, inches Float
7092 7093 IDM_XERR RO Position error, inches Float
7094 7095 IDM_INTXERR RO
Position control integral command, velocity
(in/0.0001sec)
Float
7096 7097 IDM_VCMD RO Velocity command (in/0.0001sec) Float
7098 7099 IDM_ICMD RO Motor current command, counts Float
7100 7101 IDM_VMEAS RO Measured velocity (in/0.0001sec) Float
7102 7103 IDM_GASTEMPC RO
Gas temperature in Celsius (includes TempOff), used
for LVDT position compensation & analog output
Float
7104 7105 IDM_MOTORCUR RO Motor current, approximation in Amps Float
7106 7107 IDM_TIT RO Total inches traveled Float
7108 7109 IDM_DJSUM RO Total demand jitter, volts Float
7110 7111 IDM_SLR RO Seal life remaining, % (based on IDM_TITHRESH) Float
7112 7113 IDM_APLUSBV RO LVDT A+B voltage measurement Float
7114 7115 IDM_AMINUSBV RO LVDT A-B voltage measurement Float
Table 22: Real Time Status Parameters
10 Write Modbus Application
Software packages that support Modbus protocol could be used to write Modbus
application for the XVG/eXVG. The necessary Modbus functions are Read
Registers, Write Single Register, and Write Multiple Registers.
- All XVG/eXVG Modbus parameters are readable using Read Register
function.
- Write to the writeable registers can be accomplished with Write functions and
appropriate password.
User Responsibility
By using the Modbus read and write functions, it is possible to access all of the
XVG/eXVG parameters, features, and functions. The following precautions must
be considered when writing your own Modbus application:
31
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