Eaton Power Xpert User Manual

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Modbus RegistersEaton Power Xpert Gateway PXGX UPS Card User’s Guide 164202123—Rev 1 61EMP (FC 04)Note: See “Configuring EMP Settings” on page 34 for more information.The optional EMP for the UPS can measure temperature and humidity. Because the device can be locatedoutside the UPS, the reference is to auxiliary data. In addition, it contains two connections for monitoring thecondition of auxiliary input contacts, such as a door switch. See Table 12 for a list of EMP registers.An exception code is returned if the EMP is not installed.To read the temperature at the UPS, set the Modbus program to Unit ID 254 and register address 12028:IP: Unit ID: 254Starting Register: 12028Number of registers: 2Function Code: 04Time or Date (FC 04)Some UPS models support a time and/or date function. This format has a DATE data type and contains sixbytes. Each byte represents the year, month, day, hour, minutes, or seconds (see page 58 for moreinformation).To read the UPS date and time, set the Modbus program to Unit ID 1 and register 12203:IP: Unit ID: 1Starting Register: 12203Number of registers: 3Function Code: 04The UPS would return three registers containing hexadecimal data in the ym dh ms format (for example,May 17, 2007 at 10:45 and 20 seconds).Viewing each byte in decimal would yield the following data, which is viewable as the year (07), month (05),day (17), hour (10), minutes (45), and seconds (20):Viewing each byte as two-byte unsigned integers would yield the following data:Table 12. EMP Registers (FC 04)Name Register Data Type BytesVendor Name 1032 STRING 64Model Name 1064 STRING 64Display Name 1096 STRING 64Serial Number 1276 STRING 64Device ID 1192 STRING 64Auxiliary Input 1 10275 UINT 2Auxiliary Input 2 10276 UINT 2Auxiliary Temperature 12028 FLOAT 4Auxiliary Humidity 12030 FLOAT 407 05 11 0A 2D 1407 05 17 10 45 201797 4362 11540