UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Caterpillar


Modbus Register Map

Usage:

UPS 250 APZ


MODBUS Register Map

  • The UPS Series 300 supports the following protocols: MODBUS/TCP, Class 0 and MODBUS/RTU.

  • All registers are read only. The registers are accessed with MODBUS FC3. MODBUS FC3 allows multiple registers to be read.

  • There are five register groups: System, MMU, Event, Status and Summary.

  • Register pairs, shown as (x)(x+1) represent a 32 bit floating point value. The lower numbered register contains bits 15 through 0 of the value. The higher numbered Register contains bits 31 through 16 of the floating point value.

  • Registers shown as (x) are 16 bit unsigned quantities.

  • References to a register number x is equivalent to MODBUS Register 40000+x.

System Group

The system group pertains to those signals that are common to all of the MMUs that are in a system.

Table 1
System Registers 
Register  Group  Description  Units 
(1)  System  Firmware Revision, Lower  Refer to "System Group". 
(2)  System  Firmware Revision, Upper   
(3)  System  FPGA Revision, Lower  Refer to "Note 1". 
(4)  System  FPGA Revision, Upper   
(5)  System  Notice Active  0 or 1 
(6)  System  Alarm Active  0 or 1 
(7)  System  System Mode  (integer) 
(8)  System  System State  (integer) 
(9)  System  System Year  4-digit year 
(10)  System  System Month  1 to 12 
(11)  System  System Date  1 to 31 
(12)  System  System Hour  0 to 23 
(13)  System  System Minute  0 to 59 
(14)  System  System Second  0 to 59 
(15)(16)  System  Output Frequency  Hertz 
(17)(18)  System  Input Frequency  Hertz 
(19)(20)  System  Output Power Factor  0.0 to 1.0 
(21)(22)  System  Input Power Factor  0.0 to 1.0 
(23)(24)  System  Percent Energy  Percent 
(25)(26)  System  Percent Load  Percent 
(27)(28)  System  Output Power  Kilowatts 
(29)(30)  System  Output KVA  KVA 
(31)(32)  System  Input Power  Kilowatts 
(33)(34)  System  Input KVA  KVA 
(35)(36)  System  Input Line Volt AB  Vac 
(37)(38)  System  Input Line Volt BC  Vac 
(39)(40)  System  Input Line Volt CA  Vac 
(41)(42)  System  Bypass Line Volt AB  Vac 
(43)(44)  System  Bypass Line Volt BC  Vac 
(45)(46)  System  Bypass Line Volt CA  Vac 
(47)(48)  System  Output Line Volt AB  Vac 
(49)(50)  System  Output Line Volt BA  Vac 
(51)(52)  System  Output Line Volt CA  Vac 
(53)(54)  System  Input Current Phase A  Amps 
(55)(56)  System  Input Current Phase B  Amps 
(57)(58)  System  Input Current Phase C  Amps 
(59)(60)  System  Output Current Phase A  Amps 
(61)(62)  System  Output Current Phase B  Amps 
(63)(64)  System  Output Current Phase C  Amps 

Note 1

Firmware Revisions are shown as: M.mmXY (example: 1.02)

Where:

  • M represents the major revision, mm represents the minor revision, X represents the Beta letter, and Y represents the Developer Letter. For production code, the Beta and developer letters will be null.

  • The Lower 16 bits of the Firmware Revision contain the Beta Letter (upper byte) and Developer Letter (lower byte).

  • The Upper 16 bits contain the Major Revision (upper byte) and the Minor Revision (lower byte).

For example, if Register 1 contains 0x7068, and Register 2 contains 0x005a, the firmware revision would be shown as 0.90ph. The firmware revision indicates the major/minor revision level of .90, beta version p, developer h.

Note 2

The FPGA revision is shown as X.YZ, where X and Y are numeric and represent the major revisions and the minor revisions. Z is a Beta letter. Example (1.30)

The FPGA revision information can be decoded as follows:

  • Major.Minor = (float)Register 3 / 100

  • The Beta letter is ASC((Register 4 & 255) + 0x60)

  • The Product Family code is contained in the upper 8 bits of Register 4. The product code will always be 0 (zero) for the UPS Series 300. For example, if register 3 contains 0x00A0 and Register 4 contains 0x0008, the FPGA revision would be shown as 1.6h. The revision would indicate a valid Series 300 UPS FPGA.

MMU Detail Group

Table 2
Detail Registers 
Register  Group  Description  Units 
(100)(101)  MMU detail  Input Volts AB  VAC 
(102)(103)  MMU detail  Input Volts BC  VAC 
(104)(105)  MMU detail  Input Volts CA  VAC 
(106)(107)  MMU detail  Filter Volts AB  VAC 
(108)(109)  MMU detail  Filter Volts BC  VAC 
(110)(111)  MMU detail  Filter Volts CA  VAC 
(112)(113)  MMU detail  Output Volts AB  VAC 
(114)(115)  MMU detail  Output Volts BC  VAC 
(116)(117)  MMU detail  Output Volts CA  VAC 
(118)(119)  MMU detail  Inverter Current A  Amps 
(120)(121)  MMU detail  Inverter Current B  Amps 
(122)(123)  MMU detail  Inverter Current C  Amps 
(124)(125)  MMU detail  Input Current A  Amps 
(126)(127)  MMU detail  Input Current B  Amps 
(128)(129)  MMU detail  Input Current C  Amps 
(130)(131)  MMU detail  Output Current A  Amps 
(132)(133)  MMU detail  Output Current B  Amps 
(134)(135)  MMU detail  Output Current C  Amps 
(136)(137)  MMU detail  Target Output Volts AB  VAC 
(138)(139)  MMU detail  Target Output Volts BC  VAC 
(140)(141)  MMU detail  Target Output Volts CA  VAC 
(142)(143)  MMU detail  DC Offset Correction AB  VAC 
(144)(145)  MMU detail  DC Offset Correction BC  VAC 
(146)(147)  MMU detail  DC Offset Correction CA  VAC 
(148)(149)  MMU detail  Output Voltage Setpoint AB  VAC 
(150)(151)  MMU detail  Output Voltage Setpoint BC  VAC 
(152)(153)  MMU detail  Output Voltage Setpoint CA  VAC 
(154)(155)  MMU detail  Input Volts AN  VAC 
(156)(157)  MMU detail  Input Volts BN  VAC 
(158)(159)  MMU detail  Input Volts CN  VAC 
(160)(161)  MMU detail  Output Frequency  Hertz 
(162)(163)  MMU detail  Output MMU Power  KW 
(164)(165)  MMU detail  Output MMU KVA  KVA 
(166)(167)  MMU detail  Output Power Factor  0.0 to 1.0 
(168)(169)  MMU detail  Input Frequency  Hertz 
(170)(171)  MMU detail  Input MMU Power  KW 
(172)(173)  MMU detail  Input MMU KVA  KVA 
(174)(175)  MMU detail  Input Power Factor  0.0 to 1.0 
(176)(177)  MMU detail  Cabinet Temperature  °C 
(178)(179)  MMU detail  Air Inlet
Temperature 
°C 
(180)(181)  MMU detail  Static Switch
Temperature 
°C 
(182)(183)  MMU detail  Genset Start
IGBT
Temperature 
°C 
(184)(185)  MMU detail  Positive DC Bus Voltage  VDC 
(186)(187)  MMU detail  Negative DC Bus Voltage  VDC 
(188)(189)  MMU detail  Tachometer  RPM 
(190)(191)  MMU detail  Percent Energy 
(192)(193)  MMU detail  Vacuum Gauge  milliTorr 
(194)(195)  MMU detail  Top Field Coil Current  Amps 
(196)(197)  MMU detail  Bottom Field Coil Current  Amps 
(198)(199)  MMU detail  Bottom Bearing Force  Pounds 
(200)(201)  MMU detail  Lateral Vibration  Gs 
(202)(203)  MMU detail  Axial Vibration  Gs 
(204)(205)  MMU detail  Top Field Coil
Temperature 
°C 
(206)(207)  MMU detail  Bottom Field Coil
Temperature 
°C 
(208)(209)  MMU detail  Armature
Temperature 
°C 
(210)(211)  MMU detail  Top Field Coil IGBT
Temperature 
°C 
(212)(213)  MMU detail  Bottom Field Coil IGBT
Temperature 
°C 
(214)(215)  MMU detail  Top Bearing
Temperature 
°C 
(216)(217)  MMU detail  Bottom Bearing
Temperature 
°C 
(218)(219)  MMU detail  RPS Advance setpoint  0 to 255 
(220)  MMU detail  MMU Mode  Integer 
(221)  MMU detail  MMU State  Integer 

Event Log Group

The Event Log Group provides a way to read the event log from the UPS Series 300. Events are stored in the internal memory of the UPS according to severity.

  • Status Events are normal occurring events that are deemed important enough to store in the event memory, but are not associated with an error condition.

  • Notice Events indicate a possible failure or an abnormal condition and should be investigated.

  • Alarm Events require immediate attention.

The message is sent as ASCII text in registers 256 through 296. The message can be up to 80 characters in length, plus a trailing null. For messages that are less than 80 characters long, the trailing bytes are zeroed. Attempts to read a message index that is greater than the number of indicated messages will result in a null string. All message bytes being zeroed. The indicated messages are located in registers 250, 251 or 252.

Refer to the following steps in order to retrieve the event log:

  1. Read the number of "All" messages, "Alarm" messages and/or "Warning" messages.

    Refer to the following Registers: 250, 251 and 252.

  2. If there are more than 0 messages, set the Command register for the desired message level.

    A reset command should be issued first. Subsequent Advance commands should be issued to progress through all the events.

    If another message is available, the ASCII string area will contain the ASCII characters for the message. The end of the message will be padded with NULL characters. If no other messages are available, the ASCII string area will contain zeros.

Pseudo-coded routines for reading the entire event log, and for periodically checking for new event messages, are shown below. Refer to Illustration 1.

Refer to Table 3 for the Commands for the following Registers: 253, 254 and 255.

Table 3
Command Values 
Value  Meaning  Description 
Reset  Sets the internal index to the oldest message stored in the event log. This command should be issued at least once when reading the event log. 
Advance  Advances the internal index to the next message of the appropriate event type. If there are no more messages of the appropriate type available, a NULL string will be placed in the ASCII string registers. 


Illustration 1g01084074
Pseudo-coded routine

Note: The UPS Series 300 accumulates events in 2 sectors in flash memory. Each sector can hold 2038 events. When a sector is filled (number of all events = 2038), the most-recent 1440 events are copied. The most-recent 1440 events are copied to the other (erased) sector before adding new messages to the event log. Therefore, the process can cause the values in registers 250, 251 and/or 252 to decrease suddenly. The decrease in the register value must be taken into account when designing code which examines the 250, 251 and/or 252 registers.

Table 4
Event Registers 
Register  Group  Read_Write  Description 
(250)  Event  Number of All Messages 
(251)  Event  Number of Warning and Alarm Messages 
(252)  Event  Number of Alarm Messages Only 
(253)  Event  R/W  "All Messages" Command Register 
(254)  Event  R/W  "Warning and Alarm Messages" Command Register 
(255)  Event  R/W  "Alarm Messages Only" Command Register 
(256)  Event  Bytes 0 and 1 of the ASCII message string 
(257)  Event  Bytes 2 and 3 of the ASCII message string 
(258)  Event  Bytes 4 and 5 of the ASCII message string 
(259)  Event  Bytes 6 and 7 of the ASCII message string 
(260)  Event  Bytes 8 and 9 of the ASCII message string 
(261)  Event  Bytes 10 and 11 of the ASCII message string 
(262)  Event  Bytes 12 and 13 of the ASCII message string 
(263)  Event  Bytes 14 and 15 of the ASCII message string 
(264)  Event  Bytes 16 and 17 of the ASCII message string 
(265)  Event  Bytes 18 and 19 of the ASCII message string 
(266)  Event  Bytes 20 and 21 of the ASCII message string 
(267)  Event  Bytes 22 and 23 of the ASCII message string 
(268)  Event  Bytes 24 and 25 of the ASCII message string 
(269)  Event  Bytes 26 and 27 of the ASCII message string 
(270)  Event  Bytes 28 and 29 of the ASCII message string 
(271)  Event  Bytes 30 and 31 of the ASCII message string 
(272)  Event  Bytes 32 and 33 of the ASCII message string 
(273)  Event  Bytes 34 and 35 of the ASCII message string 
(274)  Event  Bytes 36 and 37 of the ASCII message string 
(275)  Event  Bytes 38 and 39 of the ASCII message string 
(276)  Event  Bytes 40 and 41 of the ASCII message string 
(277)  Event  Bytes 42 and 43 of the ASCII message string 
(278)  Event  Bytes 44 and 45 of the ASCII message string 
(279)  Event  Bytes 46 and 47 of the ASCII message string 
(280)  Event  Bytes 48 and 49 of the ASCII message string 
(281)  Event  Bytes 50 and 51 of the ASCII message string 
(282)  Event  Bytes 52 and 53 of the ASCII message string 
(283)  Event  Bytes 54 and 55 of the ASCII message string 
(284)  Event  Bytes 56 and 57 of the ASCII message string 
(285)  Event  Bytes 58 and 59 of the ASCII message string 
(286)  Event  Bytes 60 and 61 of the ASCII message string 
(287)  Event  Bytes 62 and 63 of the ASCII message string 
(288)  Event  Bytes 64 and 65 of the ASCII message string 
(289)  Event  Bytes 66 and 67 of the ASCII message string 
(290)  Event  Bytes 68 and 69 of the ASCII message string 
(291)  Event  Bytes 70 and 71 of the ASCII message string 
(292)  Event  Bytes 72 and 73 of the ASCII message string 
(293)  Event  Bytes 74 and 75 of the ASCII message string 
(294)  Event  Bytes 76 and 77 of the ASCII message string 
(295)  Event  Bytes 78 and 79 of the ASCII message string 
(296)  Event  Bytes 80 and 81 of the ASCII message string 

Status Group

The Status Group is status registers for the system and MMU. Each bit has a particular meaning for a particular FPGA revision.

Table 5
System Status Registers 
Register  Group  Description 
(350)  Status  System Status Register 1 
(351)  Status  System Status Register 2 
(352)  Status  System Status Register 3 
(353)  Status  MMU Status Register A 
(354)  Status  MMU Status Register B 
(355)  Status  MMU Status Register C 
(356)  Status  MMU Status Register D 
(357)  Status  MMU Status Register E 

Note: The three system status registers are only available on systems with a Systems Cabinet (in other words, systems that can support more than 1 MMU).

Table 6
Bit definitions for System Status Register 1 
Bit  Definition  Description 
15(1)  SYS_CAB_USER_DATA_LOCK_BIT  communication with user interface board ok 
14  SYS_CAB_IO_DATA_LOCK_BIT  communication with i/o interface board ok 
13  SYS_CAB_FAN_DATA_LOCK_BIT  communication with fan interface board ok 
12  SYS_CAB_AC_DATA_LOCK_BIT  communication with AC interface board ok 
11  SYS_CAB_T3_FUSE_BIT  power supply transformer fuse okay 
10  SYS_CAB_T2_FUSE_BIT  power supply transformer fuse okay 
SYS_CAB_T1_FUSE_BIT  power supply transformer fuse okay 
SYS_CAB_SPARE_0  spare bit 
SYS_CAB_PS_2_OK_BIT  24 V power supply 2 okay 
SYS_CAB_PS_1_OK_BIT  24 V power supply 1 okay 
SYS_CAB_FAN_6_OK_BIT  spare bit 
SYS_CAB_FAN_5_OK_BIT  spare bit 
SYS_CAB_FAN_4_OK_BIT  spare bit 
SYS_CAB_FAN_3_OK_BIT  System cabinet fan 3 is okay 
SYS_CAB_FAN_2_OK_BIT  System cabinet fan 2 is okay 
SYS_CAB_FAN_1_OK_BIT  System cabinet fan 1 is okay 
(1) Bit 15 is the most significant bit

Table 7
Bit definitions for System Status Register 2 
Bit  Definition  Description 
15  SYS_CAB_SS_FUSE_OK_BIT  Bypass Static Switch fuse is okay 
14  SYS_CAB_SPARE_BIT  spare bit 
13  SYS_CAB_SPARE_BIT  spare bit 
12  SYS_CAB_SPARE_BIT  spare bit 
11  SYS_CAB_SPARE_BIT  spare bit 
10  SYS_CAB_SPARE_BIT  spare bit 
SYS_CAB_SPARE_BIT  spare bit 
SYS_CAB_SPARE_8   
SYS_CAB_SPARE_7   
SYS_CAB_IN_6_CONTACT_BIT  System Cabinet remote input contact 
SYS_CAB_IN_5_CONTACT_BIT  System Cabinet remote input contact 
SYS_CAB_IN_4_CONTACT_BIT  System Cabinet remote input contact 
SYS_CAB_IN_3_CONTACT_BIT  System Cabinet remote input contact 
SYS_CAB_IN_2_CONTACT_BIT  System Cabinet remote input contact 
SYS_CAB_IN_1_CONTACT_BIT  System Cabinet remote input contact 
SYS_CAB_SPARE_BIT   

Table 8
Bit definitions for System Status Register 3 
Bit  Definition  Description 
15  SYS_CAB_BYPASS_ROTATION_CW  bypass input phase rotation is clockwise 
14  SYS_CAB_BYPASS_ROTATION_CCW  bypass input phase rotation is counter-clockwise 
13  SYS_CAB_FREQUENCY_LOCK   
12    Spare bits 
11    Spare bits 
10    Spare bits 
  Spare bits 
SYS_CAB_K3_STATUS_ERR, K3  status bit does not match the "K3" command bit 
SYS_CAB_COMMUNICATION_ERR  error with one of the satellite sys. Cab. boards 
SYS_CAB_K3_CB_CURRENT_TRIP  bypass CB tripped because of current overload 
SYS_CAB_FAN_SPARE_5   
SYS_CAB_FAN_SPARE_4   
SYS_CAB_FAN_SPARE_3   
SYS_CAB_FAN_SPARE_2   
SYS_CAB_ZIGZAG_OL_RELAY_TRIP  zigzag transformer overload relay has tripped 
SYS_CAB_ZIGZAG_BREAKER_TRIP  zigzag breaker relay has tripped 

Table 9
Bit definitions for MMU Status Register A 
Bit  Definition  Description 
15  K3_STATUS_BIT  Bypass contactor status bit (1 = closed) 
14  K2_STATUS_BIT  MMU output contactor status bit (1 = closed) 
13  K1_STATUS_BIT  MMU input contactor status bit (1 = closed) 
12  USER_DATA_LOCK  MMU user interface board communications okay 
11  IO_DATA_LOCK  MMU input/ouput interface board communication okay 
10  FAN_DATA_LOCK  MMU fan interface board communications okay 
DC_DATA_LOCK  MMU DC interface board communications okay 
AC_DATA_LOCK  MMU AC interface board communications okay 
GS_DATA_LOCK (Optional)  MMU Genset Start interface board comm. okay 
UNLOADING_TO  Unloading controller had a timeout reaching setpoint 
LOW_SPEED_SHUTDOWN  Discharge ending because of flywheel speed 
FLY_MASTER_ENABLE  Flywheel Master Controller enabled 
EXT_SYNC_BIT  Synchronize output to external input source command bit 
K4_STATUS_BIT  Bypass static switch contactor status Bit 
S_BYP_SW_FUSE_OK_BIT  Bypass static switch fuse status bit 
MASTER_ENABLE  The MMU master controller is enabled 

Table 10
Bit definitions for MMU Status Register B 
Bit  Definition  Description 
13  DISCHARGING_BIT  MMU is discharging 
12  SPARE_BIT   
11  SPARE_BIT   
10  MMU_T2_FUSE_BIT  MMU power supply transformer 2 fuse okay 
MMU_T1_FUSE_BIT  MMU power supply transformer 1 fuse okay 
PS_3_BIT  MMU 24V DC power supply 3 okay 
PS_2_BIT  MMU 24V DC power supply 2 okay 
PS_1_BIT  MMU 24V DC power supply 1 okay 
FAN_5_BIT  MMU Fan 6 okay 
FAN_4_BIT  MMU Fan 5 okay 
FAN_3_BIT  MMU Fan 4 okay 
FAN_2_BIT  MMU Fan 3 okay 
FAN_1_BIT  MMU Fan 2 okay 
FAN_0_BIT  MMU Fan 1 okay 

Table 11
Bit definitions for MMU Status Register C 
Bit  Definition  Description 
14  AC_COUNTER_CLOCKWISE_BIT  MMU input has counter-clockwise phase rotation 
13  AC_CLOCKWISE_BIT  MMU input has clockwise phase rotation 
12  STATIC_SW_FULLY_ON_BIT  MMU Input static switch is turned on 
11  STATIC_SWITCH_TIMEOUT  Timeout controlling MMU input static switch 
10  OVERSPEED_ERR  Flywheel overspeed shutdown 
RPS_ERR  Rotor Position Sensor Error 
SKIIP_3_ERR  Flywheel SKIIP 3 error 
SKIIP_2_ERR  Flywheel SKIIP 2 error 
SKIIP_1_ERR  Flywheel SKIIP 1 error 
SKIIP_C_ERR  Utility Inverter Phase C SKIIP error 
SKIIP_B_ERR  Utility Inverter Phase B SKIIP error 
SKIIP_A_ERR  Utility Inverter Phase A SKIIP error 
FWI_DATALOCK_ERR_BIT  Flywheel Interface Board comm. error 
LOW_DC_BUS_ERR  A DC Bus had a low voltage error 
HI_DC_BUS_ERR  A DC Bus had a high voltage error 

Table 12
Bit definitions for MMU Status Register D 
Bit  Definition  Description 
15  BYPASS_AVAILABLE_BIT  Bypass input is qualified for bypass transfers 
14  EXT_SYNC_CMD_BIT  Discharge sync. to ext. downstream source 
13  BYPASS_SSW_OKAY_BIT  Bypass static switch is present and operating 
12  BYPASS_SYNC_BIT  Output is synchronized to the bypass source 
11  AHC_ENABLE_BIT  Active harmonic correction enable bit 
10  FLYWHEEL_SYS_ENABLE_BIT  The flywheel master controller enable bit 
REDUNDANT_MMU_BIT  The system has at least 1 MMU more than the load requires 
AVR_ENABLE_BIT  Automatic Voltage Regulation is enabled 
NEUTRAL_CONNECTED_BIT  System has a neutral connection 
K4_CONTROL_BIT  Bypass static switch contactor close command 
START_SWEEP_ENABLE_BIT  Rotor spin-up sweep is enabled 
K3_CONTROL_BIT  Bypass contactor open request 
K2_CONTROL_BIT  Output contactor close request 
K1_CONTROL_BIT  Input contactor close request 
UNLOADING_ENABLE_BIT  Rotor unloading controller is enabled 
STATIC_SWITCH_ENABLE_BIT  MMU input static switch is enabled 

Table 13
Bit definitions for MMU Status Register E 
Bit  Definition  Description 
15  DISCHARGE_ENABLE_BIT  MMU discharge is enabled 
14  FLYWHL_INV_ENABLE_BIT  MMU flywheel inverter is enabled 
13  FIELD_ENABLE_BIT  MMU field coil controller is enabled 
12  UTIL_INV_ENABLE_BIT  MMU Output Utility Inverter is enabled 
11  SYSTEM_ENABLE_BIT  MMU master controller enable command 
10  ALARM_ACTIVE  MMU has an active alarm event 
NOTICE_ACTIVE  MMU has an active notice event 

Summary Group

The summary group contains some information about each UPS Series 300 unit that is connected via the CAN bus. Register values for MMUs that are not present on the CAN bus are returned as zeros. There are registers for four UPS Series 300 units connected to each other via the CAN bus. Reading registers from a unit that is not connected to the bus will return zeros.

Table 14
Summary Registers 
Register  Group  Description 
(375)  Summary  Detected number of MMUs 
(376)  Summary  Expected number of MMUs 
(380)  Summary  MMU Mode, Unit 1 
(381)  Summary  MMU State, Unit 1 
(382)(383)  Summary  Tachometer, Unit 1 
(384)(385)  Summary  Percent Usable Energy, Unit 1 
(386)(387)  Summary  Cabinet Temperature, Unit 1 
(388)(389)  Summary  Vacuum Gauge, Unit 1 
(390)(391)  Summary  MMU Output Power, Unit 1 
(392)(393)  Summary  MMU Output KVA, Unit 1 
(394)(395)  Summary  MMU Input Power, Unit 1 
(396)(397)  Summary  MMU Input KVA, Unit 1 
(398)(399)  Summary  MMU Spare telemetry channel, Unit 1 
(400)(401)  Summary  MMU Spare telemetry channel, Unit 1 
(402)(403)  Summary  MMU Input Current Phase A, Unit 1 
(404)(405)  Summary  MMU Input Current Phase B, Unit 1 
(406)(407)  Summary  MMU Input Current Phase C, Unit 1 
(408)(409)  Summary  MMU Output Current Phase A, Unit 1 
(410)(411)  Summary  MMU Output Current Phase B, Unit 1 
(412)(413)  Summary  MMU Output Current Phase C, Unit 1 
(424)  Summary  MMU Mode, Unit 2 
(425)  Summary  MMU State, Unit 2 
(426)(427)  Summary  Tachometer, Unit 2 
(428)(429)  Summary  Percent Usable Energy, Unit 2 
(430)(431)  Summary  Cabinet Temperature, Unit 2 
(432)(433)  Summary  Vacuum Gauge, Unit 2 
(434)(435)  Summary  MMU Output Power, Unit 2 
(436)(437)  Summary  MMU Output KVA, Unit 2 
(438)(439)  Summary  MMU Input Power, Unit 2 
(440)(441)  Summary  MMU Input KVA, Unit 2 
(442)(443)  Summary  MMU Spare telemetry channel, Unit 2 
(444)(445)  Summary  MMU Spare telemetry channel, Unit 2 
(446)(447)  Summary  MMU Input Current Phase A, Unit 2 
(448)(449)  Summary  MMU Input Current Phase B, Unit 2 
(450)(451)  Summary  MMU Input Current Phase C, Unit 2 
(452)(453)(  Summary  MMU Output Current Phase A, Unit 2 
(454)(455)  Summary  MMU Output Current Phase B, Unit 2 
(456)(457)  Summary  MMU Output Current Phase C, Unit 2 
(468)  Summary  MMU Mode, Unit 3 
(469)  Summary  MMU State, Unit 3 
(470)(471)  Summary  Tachometer, Unit 3 
(472)(473)  Summary  Percent Usable Energy, Unit 3 
(474)(475)  Summary  Cabinet Temperature, Unit 3 
(476)(477)  Summary  Vacuum Gauge, Unit 3 
(478)(479)  Summary  MMU Output Power, Unit 3 
(480)(481)  Summary  MMU Output KVA, Unit 3 
(482)(483)  Summary  MMU Input Power, Unit 3 
(484)(485)  Summary  MMU Input KVA, Unit 3 
(486)(487)  Summary  MMU Spare telemetry channel, Unit 3 
(488)(489)  Summary  MMU Spare telemetry channel, Unit 3 
(490)(491)  Summary  MMU Input Current Phase A, Unit 3 
(492)(493)  Summary  MMU Input Current Phase B, Unit 3 
(494)(495)  Summary  MMU Input Current Phase C, Unit 3 
(496)(497)  Summary  MMU Output Current Phase A, Unit 3 
(498)(499)  Summary  MMU Output Current Phase B, Unit 3 
(500)(501)  Summary  MMU Output Current Phase C, Unit 3 
(512)  Summary  MMU Mode, Unit 4 
(513)  Summary  MMU State, Unit 4 
(514)(515)  Summary  Tachometer, Unit 4 
(516)(517)  Summary  Percent Usable Energy, Unit 4 
(518)(519)  Summary  Cabinet Temperature, Unit 4 
(520)(521)  Summary  Vacuum Gauge, Unit 4 
(522)(523)  Summary  MMU Output Power, Unit 4 
(524)(525)  Summary  MMU Output KVA, Unit 4 
(526)(527)  Summary  MMU Input Power, Unit 4 
(528)(529)  Summary  MMU Input KVA, Unit 4 
(530)(531)  Summary  MMU Spare telemetry channel, Unit 4 
(532)(533)  Summary  MMU Spare telemetry channel, Unit 4 
(534)(535)  Summary  MMU Input Current Phase A, Unit 4 
(536)(537)  Summary  MMU Input Current Phase B, Unit 4 
(538)(539)  Summary  MMU Input Current Phase C, Unit 4 
(540)(541)  Summary  MMU Output Current Phase A, Unit 4 
(542)(543)  Summary  MMU Output Current Phase B, Unit 4 
(544)(545)  Summary  MMU Output Current Phase C, Unit 4 

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C3.4B Industrial Engine Selective Catalytic Reduction Warning System
Product Link<SUP>TM</SUP> PL421 Installation Quick Reference Guide{7606} Product Link<SUP>TM</SUP> PL421 Installation Quick Reference Guide{7606}
XQC1600 Power Module Sound Information
794 AC Off-Highway Truck Automatic Lubrication Reservoir - Fill
794 AC Off-Highway Truck Cab Air Filter - Clean/Replace
794 AC Off-Highway Truck Engine Air Precleaner - Clean
794 AC Off-Highway Truck Frame and Body - Inspect
794 AC Off-Highway Truck Frame and Body Support Pads - Clean/Inspect
C175-16 Locomotive Engine Exhaust Diffuser Adapter
C175-16 Locomotive Engine Flywheel
349F and 352F Excavator Machine System Wiring Harness (Open Circuit) - Test
349F and 352F Excavator Machine System Wiring Harness (Short Circuit) - Test
C15 and C18 Engines for China On-Highway Phase IV Event Codes
C4.4 Industrial Engine Diagnostic Flash Code Retrieval
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