User`s guide

Modbus Registers

Eaton Power Xpert Gateway PXGX UPS Card User’s Guide 164202123—Rev 1 60

UPS Alarms (FC 02)

Table 11 provides a partial list of example UPS alarms. Your UPS may have different alarms. UPS alarms are

not registers, but are discrete inputs and are read using FC 01 or FC 02.

The UPS monitors the condition of several parameters and can activate an alarm status if a parameter is out of

range. For example, if the utility power is too high or too low, the UPS can set the Utility Out of Limits alarm.

To read the Utility Out of Limits alarm, set the Modbus program to Unit ID 1 and discrete address 1057:

IP: <IP address of UPS>

Unit ID: 1

Starting Address: 1057

Number of Addresses: 1

Function Code: 02

The UPS returns a BOOL value (0 or 1), indicating if the alarm is active or not active. A return value of 0 (false)

indicates an inactive alarm (the utility input is within limits). A return value of 1 (true) indicates an active alarm

(the utility input is out of limits).

Table 10. UPS Sample Registers (FC 04)

Parameter Name Display Name Register Discrete Units Data Type Bytes

VendorName Vendor Name 1032 No No STRING 64

ModelName Model Name 1064 No No STRING 64

iDisplayName Display Name 1096 No No STRING 64

iDeviceType Device Type 1128 No No STRING 64

iDeviceID Device ID 1192 No No STRING 64

iDeviceGuid Device GUID 1256 No No STRING 40

SerialNumber Serial Number 1276 No No STRING 64

SoftwareVersion Software Version 1308 No No FLOAT 4

mACVoutC Vcn Output 4050 No Volts FLOAT 4

mACVbypassA Van Bypass 4058 No Volts FLOAT 4

mACVbypassB Vbn Bypass 4060 No Volts FLOAT 4

mACVbypassC Vcn Bypass 4062 No Volts FLOAT 4

mDCVbatt DCV Batt 4377 No Volts FLOAT 4

mACIinA IinA 5022 No Amperes FLOAT 4

mACIinB IinB 5024 No Amperes FLOAT 4

mACIinC IinC 5026 No Amperes FLOAT 4

mACIoutA IoutA 5028 No Amperes FLOAT 4

Table 11. UPS Sample Alarms (FC 02)

Parameter Name Display Name Address Discrete

aUtilityOutOfLimits Utility Out Of Limits 1057 Yes

aInternalCommFail Internal Communication Failure 1062 Yes

aBattVoltsHigh Battery Voltage High 1067 Yes

aCheckPowerSupply Check Power Supply 1069 Yes

aCheckLogicSupply Check Logic Power Supply 1070 Yes

aHeatsinkOverTemp Heatsink Over Temperature 1072 Yes

aCheckHeatsinkSensor Check Heatsink Temperature Sensor 1073 Yes

aRectifier125OverI Rectifier Current Over 125% 1074 Yes

aInverterOffCommand Inverter Off Command 1091 Yes