CIAT DynaCIAT LG User manual

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–Modbus
Communication
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This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation without
its written consent, and that no right is granted to disclose or so use any information contained in said document.
Connect Touch Control for DynaCIAT LG/LGN
chillers
MODBUS COMMUNICATION
User’s guide

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–Modbus
Communication
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This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be disclosed, reproduced in whole or in part, or used for manufacture
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REVISIONS HISTORY
REV
DATE yyyy mm dd
DESCRIPTION
DONE BY
Original
2017-04-03
Original
JA

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Modbus
Communication
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without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
TABLE OF CONTENT
REVISIONS HISTORY ............................................................................................................... 2
TABLE OF CONTENT ............................................................................................................... 3
1INTRODUCTION ............................................................................................................... 4
1.1 Purpose .......................................................................................................................... 4
1.2 Definitions, Abbreviations and acronyms......................................................................... 4
2CONNECTION CHANNELS .................................................................................................... 5
2.1 RS485 socket details........................................................................................................ 5
2.2 RJ45 socket details.......................................................................................................... 6
3MODBUS FUNCTIONS ....................................................................................................... 7
4MAPPING INTERFACE ........................................................................................................ 8

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Modbus
Communication
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disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
1INTRODUCTION
1.1 Purpose
This guide is intended to be used by Building Management System (BMS) engineer inside or outside the CIAT
Corporation.
It describes in details the Modbus communication with DynaCIAT LG/LGN units.
All information already provided in the product IOM are not available in this document.
1.2 Definitions, Abbreviations and acronyms
Acronym
/Abbreviation
Definition
DI
Discrete Input
EXV
Expansion Valve
FC
Free Cooling
HR
Holding Register
IEEE
Institute of Electrical and Electronics Engineers
IP
Internet Protocol
IR
Input Register
Net
Network
OAT
Outside Air Temperature
RTU
Remote Terminal United Technologies Corporation
SCT
Saturated Condensing Temperature
SST
Saturated Suction Temperature
TCP
Transmission Control Protocol
xxLS
..Low Speed
xxHS
..High Speed

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Modbus
Communication
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without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
2CONNECTION CHANNELS
Here below sockets available for communication purposes with external devices.
sockets identification available for communication
NB: PORT 0 should be used only if it is not already used to connect a gateway integrated in the unit.
2.1 RS485 socket details
Bus “port0” is intended to Modbus serial line with RS485 (i.e. no control flow)
Transmission mode:
Used for Local area network communication type by external devices.
With twisted shielded pair
distance up to 1000m without amplifier
Normally configurable at 9600, 19200 or 38400 baud in half duplex.
Parity bit may be active or deactivated. If parity is disabled, additional stop bits are automatically
set for frame timing considerations. Otherwise, parity may be odd or even according to the
settings chosen.
Exclusively RTU mode operates with configurable combination (No ASCII mode permission)
1 start, 8 data, even parity, 1 stop bit
1 start, 8 data, odd parity, 1 stop bit
1 start, 8 data, even parity forced, 1 stop bit
1 start, 8 data, odd parity forced, 1 stop bit
1 start, 8 data, 2 stop bit
1 start, 8 data, no parity , 1 stop bit (EXCLUDED)
RTU protocol is compatible with both Little/ Big Endian for data field (i.e. either most significant
byte is sent first or Least significant byte is sent first)
Unit identifier must be declared from 1 to 247 as slave product number setup (i.e. station
number)
Cyclic Redundancy Check is made by the RTU protocol layer as defined in Appendix A of “Modbus
over serial line” specification available at modbus.org

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Modbus
Communication
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This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Due to floating no native floating point representation for the Modbus communication protocol,
IEEE754 representation has been integrated. As the opposite, float handled as integer is also
available (i.e. float X 10) depending on setup.
Bus “port1” is proprietary and therefore reserved for internal purpose.
2.2 RJ45 socket details
Modbus Ethernet is intended to Modbus IP.
Used for wide area network communication type by external devices (building management system tool or
maintenance tool and so on…)
Cross pair wired cable shall be used for nominal configuration.
distance up to 100m without amplifier
Speed communication at 10 Mega baud not configurable
IPv4 address configurable for class address with DHCP NOT active for
Class A (0.xxx.xxx.xxx to 127.xxx.xxx.xxx)
Class B (128.0.xxx.xxx to 191. 255.xxx.xxx)
Class C (192.0.0.xxx to 223.255.255.xxx)
(IP address declared on the control unit needed to set up connection with external device)
All requests are sent via Transfer Control Protocol on registered port 502 by default but other port
number may be set as calibrate value.
TCP/IP Modbus protocol is compatible with both Little/ Big Endian for data field (i.e. either most
significant byte is sent first or Least significant byte is sent first)
Unit identifier must be declared from 1 to 247 as slave product number setup (i.e. station
number)

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Modbus
Communication
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without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
3MODBUS FUNCTIONS
The following standard functions are supported:
Code
Modbus function
Address register range
Application
01 with quantity 1
READ COIL STATUS
0 to 9999 (decimal)
None
01 with quantity N
READ MULTIPLE COIL STATUS
(from 1 to 2000max.
contiguous)
None
15 with quantity 1
WRITE COIL
None
15 with quantity N
WRITE MULTIPLE COILS (from 1
to 2000max. contiguous)
None
02 with quantity 1
READ DISCRETE INPUT
0 to 9999 (decimal)
Alarms
02 with quantity N
READ MULTIPLE DISCRETE
INPUTS (from 1 to 2000max.
contiguous)
04 with quantity 2
READ INPUT REGISTER
0 to 9999 (decimal)
Useful user parameters
04 with quantity NX2
READ MULTIPLE INPUT
REGISTERS (from 1 to 123 max.
contiguous)
Useful user parameters
03 with quantity 2
READ HOLDING REGISTER
0 to 9999 (decimal)
Configuration or service dataset
03 with quantity NX2
READ MULTIPLE HOLDING
REGISTERS (from 1 to 123 max.
contiguous)
Configuration or service dataset
16 with quantity 2
WRITE HOLDING REGISTER
Configuration or service dataset
16 with quantity NX2
WRITE MULTIPLE HOLDING
REGISTERS (from 1 to 123 max.
contiguous)
Configuration or service dataset

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Modbus
Communication
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without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
4MAPPING INTERFACE
Table
Item
Description
Media
Type
Address
(hex)
Format
ALM
COOLER_FREEZE_F
Cooler Water Exchanger Freeze
Protection
DI
1 (0001)h
Byte (8-bit)
ALM
LOW_SUCTION_A_F
Circuit A Low Saturated Suction
Temperature
DI
5 (0005)h
Byte (8-bit)
ALM
LOW_SUCTION_B_F
Circuit B Low Saturated Suction
Temperature
DI
6 (0006)h
Byte (8-bit)
ALM
HIGH_SH_A_F
Circuit A High Suction Superheat
DI
8 (0008)h
Byte (8-bit)
ALM
HIGH_SH_B_F
Circuit B High Suction Superheat
DI
9 (0009)h
Byte (8-bit)
ALM
LOW_SH_A_F
Circuit A Low Suction Superheat
DI
11 (000B)h
Byte (8-bit)
ALM
LOW_SH_B_F
Circuit B Low Suction Superheat
DI
12 (000C)h
Byte (8-bit)
ALM
LOCK_SW_F
Customer Interlock Failure
DI
14 (000E)h
Byte (8-bit)
ALM
CONDENSER_LOCK_F
Condenser Flow Switch Failure
DI
15 (000F)h
Byte (8-bit)
ALM
CPA1_REVERSE_ROT_F
Compressor A1 Not Started Or
Pressure Increase not Established
DI
16 (0010)h
Byte (8-bit)
ALM
CPA2_REVERSE_ROT_F
Compressor A2 Not Started Or
Pressure Increase not Established
DI
17 (0011)h
Byte (8-bit)
ALM
CPA3_REVERSE_ROT_F
Compressor A3 Not Started Or
Pressure Increase not Established
DI
18 (0012)h
Byte (8-bit)
ALM
CPB1_REVERSE_ROT_F
Compressor B1 Not Started Or
Pressure Increase not Established
DI
20 (0014)h
Byte (8-bit)
ALM
CPB2_REVERSE_ROT_F
Compressor B2 Not Started Or
Pressure Increase not Established
DI
21 (0015)h
Byte (8-bit)
ALM
LOSS_COM_MS_F
Master/Slave communication Failure
DI
30 (001E)h
Byte (8-bit)
ALM
NETWORK_EMSTOP_F
Unit is in Network emergency stop
DI
31 (001F)h
Byte (8-bit)
ALM
COOL_PUMP1_F
Cooler pump 1 default
DI
32 (0020)h
Byte (8-bit)
ALM
COOL_PUMP2_F
Cooler pump 2 default
DI
33 (0021)h
Byte (8-bit)
ALM
COND_PUMP1_F
Condenser pump 1 default
DI
73 (0049)h
Byte (8-bit)
ALM
COND_PUMP2_F
Condenser pump 2 default
DI
74 (004A)h
Byte (8-bit)
ALM
REPEAT_HIGH_DGT_A_F
Circuit A Repeated High Discharge Gas
Overrides
DI
37 (0025)h
Byte (8-bit)
ALM
REPEAT_HIGH_DGT_B_F
Circuit B Repeated High Discharge Gas
Overrides
DI
38 (0026)h
Byte (8-bit)
ALM
REPEAT_LOW_SST_A_F
Circuit A Repeated low suction
temperature overrides
DI
40 (0028)h
Byte (8-bit)
ALM
REPEAT_LOW_SST_B_F
Circuit B Repeated low suction
temperature overrides
DI
41 (0029)h
Byte (8-bit)
ALM
HEAT_LOW_EWT_F
Low entering water temperature in
heating
DI
43 (002B)h
Byte (8-bit)
ALM
COOLER_FLOW_F
Cooler flow switch failure
DI
51 (0033)h
Byte (8-bit)
ALM
HP_A_F
Circuit A High pressure switch Failure
DI
63 (003F)h
Byte (8-bit)
ALM
HP_B_F
Circuit B High pressure switch Failure
DI
64 (0040)h
Byte (8-bit)
ALM
SENSORS_SWAP_F
Cooler Water Exchanger Temperature
Sensors Swapped
DI
97 (0061)h
Byte (8-bit)

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Modbus
Communication
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This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
ALM
COND_SENSORS_SWAP_F
Condenser Water Exchanger
Temperature Sensors Swapped
DI
98 (0062)h
Byte (8-bit)
ALM
LOSS_COM_SM_F
Loss of communication with System
Manager
DI
29 (001D)h
Byte (8-bit)
ALM
FLUIDE_FAIL
Possible Refrigerant Leakage Failure
DI
99 (0063)h
Byte (8-bit)
ALM
FC_PROCESS_F
Free Cooling Process Failure
DI
101 (0065)h
Byte (8-bit)
ALM
CL_WL_PRES_ZERO_ERR
Cooler water loop process failure -
zero error
DI
1202 (04B2)h
Byte (8-bit)
ALM
CL_WL_PRES_TOO_LOW
Cooler water loop failure - water
press too low
DI
1203 (04B3)h
Byte (8-bit)
ALM
CL_WL_PUMP_NO_START
Cooler water loop failure - pump not
started
DI
1204 (04B4)h
Byte (8-bit)
ALM
CL_WL_SPECI_PUMP_RT
Cooler Water Loop : RT specific
DI
1205 (04B5)h
Byte (8-bit)
ALM
CL_WL_PUMP_OVERLOAD
Cooler water loop failure - pump
overload
DI
1206 (04B6)h
Byte (8-bit)
ALM
CL_WL_FLOW_SWITCH_F
Cooler water loop failure - switch fail
DI
1207 (04B7)h
Byte (8-bit)
ALM
CL_WL_PRES_CROSS
Cooler water loop failure - press cross
DI
1208 (04B8)h
Byte (8-bit)
ALM
CD_WL_PRES_ZERO_ERR
Condenser water loop failure - zero
error
DI
1102 (044E)h
Byte (8-bit)
ALM
CD_WL_PRES_TOO_LOW
Condenser water loop failure - water
press too low
DI
1103 (044F)h
Byte (8-bit)
ALM
CD_WL_PUMP_NO_START
Condenser water loop failure - pump
not started
DI
1104 (0450)h
Byte (8-bit)
ALM
CD_WL_SPECI_PUMP_RT
Condenserer Water Loop : RT specific
DI
1105 (0451)h
Byte (8-bit)
ALM
CD_WL_PUMP_OVERLOAD
Condenser water loop failure - pump
overload
DI
1106 (0452)h
Byte (8-bit)
ALM
CD_WL_FLOW_SWITCH_F
Condenser water loop failure - switch
fail
DI
1107 (0453)h
Byte (8-bit)
ALM
CD_WL_PRES_CROSS
Condenser water loop failure - press
cross
DI
1108 (0454)h
Byte (8-bit)
ALM
CL_WL_PROCESS_F
Cooler Water loop process Failure
DI
1100 (044C)h
Byte (8-bit)
ALM
CD_WL_PROCESS_F
Condenser Water loop Failure
DI
1200 (04B0)h
Byte (8-bit)
ALM
DP_A_F
Circuit A Discharge Pressure
Transducer Failure
DI
2001 (07D1)h
Byte (8-bit)
ALM
DP_B_F
Circuit B Discharge Pressure
Transducer Failure
DI
2002 (07D2)h
Byte (8-bit)
ALM
SP_A_F
Circuit A Suction Pressure Transducer
Failure
DI
2004 (07D4)h
Byte (8-bit)
ALM
SP_B_F
Circuit B Suction Pressure Transducer
Failure
DI
2005 (07D5)h
Byte (8-bit)
ALM
CL_WP_IN_F
Water Exchanger Entering Fluid
Transducer Failure
DI
2024 (07E8)h
Byte (8-bit)
ALM
CL_WP_OUT_F
Water Exchanger Leaving Fluid
Transducer Failure
DI
2025 (07E9)h
Byte (8-bit)
ALM
CD_WP_IN_F
Water Condenser Entering Fluid
Transducer Failure
DI
2026 (07EA)h
Byte (8-bit)
ALM
CD_WP_OUT_F
Water Condenser Leaving Fluid
DI
2027 (07EB)h
Byte (8-bit)

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Modbus
Communication
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without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
Transducer Failure
ALM
SERVICE_MAINTNANCE
Service maintenance alert
DI
3000 (0BB8)h
Byte (8-bit)
ALM
FGAS_NEEDED
Fgas check needed, call your
maintenance company
DI
3005 (0BBD)h
Byte (8-bit)
ALM
SIOB_A_LOW_VOLT_F
SIOB 1 Low Voltage Failure
DI
4001 (0FA1)h
Byte (8-bit)
ALM
SIOB_B_LOW_VOLT_F
SIOB 2 Low Voltage Failure
DI
4002 (0FA2)h
Byte (8-bit)
ALM
EXV_A_F
Main EXV stepper motor failure - cir A
DI
4005 (0FA5)h
Byte (8-bit)
ALM
EXV_B_F
Main EXV stepper motor failure - cir B
DI
4020 (0FB4)h
Byte (8-bit)
ALM
SIOB_A_COM_F
Loss of communication with SIOB
Board Number 1
DI
4901 (1325)h
Byte (8-bit)
ALM
SIOB_B_COM_F
Loss of communication with SIOB
Board Number 2
DI
4902 (1326)h
Byte (8-bit)
ALM
AUX1_HEATER_COM_F
Loss of communication with AUX1
Heating Device Control board
DI
4601 (11F9)h
Byte (8-bit)
ALM
AUX1_DRYC_COM_F
Loss of communication with AUX1
Condenser board
DI
4602 (11FA)h
Byte (8-bit)
ALM
AUX1_FREECOOL_COM_F
Loss of communication with AUX1
FreeCooling board
DI
4603 (11FB)h
Byte (8-bit)
ALM
AUX1_OPTION_COM_F
Loss of communication with AUX1
Options board
DI
4604 (11FC)h
Byte (8-bit)
ALM
FC_AUX1_COM_F
Loss of communication with Free
Cooling Board 1
DI
4602 (11FA)h
Byte (8-bit)
ALM
COOL_EWT_F
Water Exchanger Entering Fluid
Thermistor Failure
DI
5001 (1389)h
Byte (8-bit)
ALM
COOL_LWT_F
Water Exchanger Leaving Fluid
Thermistor Failure
DI
5002 (138A)h
Byte (8-bit)
ALM
COND_EWT_F
Condenser Entering Fluid Thermistor
Failure
DI
5006 (138E)h
Byte (8-bit)
ALM
COND_LWT_F
Condenser Leaving Fluid Thermistor
Failure
DI
5007 (138F)h
Byte (8-bit)
ALM
OAT_F
OAT Thermistor Failure
DI
5010 (1392)h
Byte (8-bit)
ALM
CHWSTEMP_F
Master/Slave Common Fluid
Thermistor Failure
DI
5011 (1393)h
Byte (8-bit)
ALM
HTWSTEMP_F
Master/Slave Common Heating Fluid
Thermistor Failure
DI
5032 (13A8)h
Byte (8-bit)
ALM
DRY_LWT_F
Dry Cooler LWT Thermistor Failure
DI
5036 (13AC)h
Byte (8-bit)
ALM
DGT_A_F
Circuit A Discharge Gas Thermistor
Failure
DI
5044 (13B4)h
Byte (8-bit)
ALM
DGT_B_F
Circuit B Discharge Gas Thermistor
Failure
DI
5045 (13B5)h
Byte (8-bit)
ALM
SUCTION_T_A_F
Circuit A Suction Gas Thermistor
Failure
DI
5012 (1394)h
Byte (8-bit)
ALM
SUCTION_T_B_F
Circuit B Suction Gas Thermistor
Failure
DI
5013 (1395)h
Byte (8-bit)
ALM
FC_WLOOP_F
Free Cooling Water Loop Thermistor
Failure
DI
5046 (13B6)h
Byte (8-bit)
ALM
FC_LWT_F
Free Cooling Leaving Water
DI
5047 (13B7)h
Byte (8-bit)

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Modbus
Communication
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This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
Thermistor Failure
ALM
FC_OAT_F
Free Cooling OAT Sensor Failure
DI
5048 (13B8)h
Byte (8-bit)
ALM
CL_PUMP_DRIVE_F
Cooler Water pump Variable Speed
Failure
DI
7003 (1B5B)h
Byte (8-bit)
ALM
CD_PUMP_DRIVE_F
Condenser Water pump Variable
Speed Failure
DI
7004 (1B5C)h
Byte (8-bit)
ALM
ILL_FACT_CONF_F
Illegal configuration
DI
8001 (1F41)h
Byte (8-bit)
ALM
INI_FACT_CONF_F
Initial factory configuration required
DI
8000 (1F40)h
Byte (8-bit)
ALM
M_S_CONFIG_F
Master/Slave configuration error
DI
8101 (1FA5)h
Byte (8-bit)
PROTOCOL
SP_OCC
Occupied Setpoint
HR
0 (0000)h
Signed Integer
(32-bit)
PROTOCOL
CHIL_S_S
Chiller Start/Stop order
HR
2 (0002)h
Signed Integer
(32-bit)
PROTOCOL
CHIL_OCC
Chiller occupancy order
HR
4 (0004)h
Signed Integer
(32-bit)
PROTOCOL
EMSTOP
Emergency Stop
HR
6 (0006)h
Signed Integer
(32-bit)
PROTOCOL
HC_SEL
HeatCool Select
HR
8 (0008)h
Signed Integer
(32-bit)
PROTOCOL
SP_SEL
Setpoint selection
HR
10 (000A)h
Signed Integer
(32-bit)
PROTOCOL
DEM_LIM
Demand Limit
HR
12 (000C)h
Signed Integer
(32-bit)
PROTOCOL
CTRL_PNT
Control Point
HR
14 (000E)h
IEEE Float
(32-bit)
PROTOCOL
LAG_LIM
Slave demand Limit
HR
16 (0010)h
Signed Integer
(32-bit)
HCCONFIG
cr_sel
Cooling Reset Select
HR
18 (0012)h
Signed Integer
(32-bit)
HCCONFIG
hr_sel
Heating Reset Select
HR
20 (0014)h
Signed Integer
(32-bit)
RESETCFG
oatcr_no
OAT No Reset Value
HR
22 (0016)h
IEEE Float
(32-bit)
RESETCFG
oatcr_fu
OAT Full Reset Value
HR
24 (0018)h
IEEE Float
(32-bit)
RESETCFG
dt_cr_no
Delta T No Reset Value
HR
26 (001A)h
IEEE Float
(32-bit)
RESETCFG
dt_cr_fu
Delta T Full Reset Value
HR
28 (001C)h
IEEE Float
(32-bit)
RESETCFG
cr_deg
Cooling Reset Deg. Value
HR
30 (001E)h
IEEE Float
(32-bit)
RESETCFG
oathr_no
OAT No Reset Value
HR
32 (0020)h
IEEE Float
(32-bit)
RESETCFG
oathr_fu
OAT Full Reset Value
HR
34 (0022)h
IEEE Float
(32-bit)
RESETCFG
dt_hr_no
Delta T No Reset Value
HR
36 (0024)h
IEEE Float
(32-bit)

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Modbus
Communication
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12 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
RESETCFG
dt_hr_fu
Delta T Full Reset Value
HR
38 (0026)h
IEEE Float
(32-bit)
RESETCFG
hr_deg
Heating Reset Deg. Value
HR
40 (0028)h
IEEE Float
(32-bit)
RESETCFG
I_cr_no
Current No Reset Value
HR
42 (002A)h
IEEE Float
(32-bit)
RESETCFG
I_cr_fu
Current Full Reset Value
HR
44 (002C)h
IEEE Float
(32-bit)
RESETCFG
I_hr_no
Current No Reset Value
HR
50 (0032)h
IEEE Float
(32-bit)
RESETCFG
I_hr_fu
Current Full Reset Value
HR
52 (0034)h
IEEE Float
(32-bit)
CP_UNABL
un_cp_a1
Compressor A1 Disable
HR
60 (003C)h
Signed Integer
(32-bit)
CP_UNABL
un_cp_a2
Compressor A2 Disable
HR
62 (003E)h
Signed Integer
(32-bit)
CP_UNABL
un_cp_a3
Compressor A3 Disable
HR
64 (0040)h
Signed Integer
(32-bit)
CP_UNABL
un_cp_b1
Compressor B1 Disable
HR
68 (0044)h
Signed Integer
(32-bit)
CP_UNABL
un_cp_b2
Compressor B2 Disable
HR
70 (0046)h
Signed Integer
(32-bit)
SETPOINT
csp1
Cooling Setpoint 1
HR
76 (004C)h
IEEE Float
(32-bit)
SETPOINT
csp2
Cooling Setpoint 2
HR
78 (004E)h
IEEE Float
(32-bit)
SETPOINT
hsp1
Heating Setpoint 1
HR
80 (0050)h
IEEE Float
(32-bit)
SETPOINT
hsp2
Heating Setpoint 2
HR
82 (0052)h
IEEE Float
(32-bit)
SETPOINT
ramp_sp
Ramp Loading Setpoint
HR
84 (0054)h
IEEE Float
(32-bit)
SETPOINT
lim_sp1
Switch Limit Setpoint 1
HR
90 (005A)h
Signed Integer
(32-bit)
SETPOINT
lim_sp2
Switch Limit Setpoint 2
HR
92 (005C)h
Signed Integer
(32-bit)
SETPOINT
lim_sp3
Switch Limit Setpoint 3
HR
94 (005E)h
Signed Integer
(32-bit)
MODBUSRS
metric
Metric Unit
HR
106 (006A)h
Signed Integer
(32-bit)
MODBUSRS
swap_b
Swap Bytes
HR
108 (006C)h
Signed Integer
(32-bit)
MODBUSRS
real_typ
Real type management
HR
110 (006E)h
Signed Integer
(32-bit)
MODBUSIP
metric
Metric Unit
HR
112 (0070)h
Signed Integer
(32-bit)
MODBUSIP
swap_b
Swap Bytes
HR
114 (0072)h
Signed Integer
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
13 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
MODBUSIP
real_typ
Real type management
HR
116 (0074)h
Signed Integer
(32-bit)
GENUNIT
SP_OCC
Setpoint Occupied?
IR
0 (0000)h
Signed Integer
(32-bit)
GENUNIT
CHIL_S_S
Net.: Cmd Start/Stop
IR
2 (0002)h
Signed Integer
(32-bit)
GENUNIT
CHIL_OCC
Net.: Cmd Occupied
IR
4 (0004)h
Signed Integer
(32-bit)
GENUNIT
EMSTOP
Emergency Stop
IR
6 (0006)h
Signed Integer
(32-bit)
GENUNIT
CTRL_TYP
Local=0 Net.=1 Remote=2
IR
8 (0008)h
Signed Integer
(32-bit)
UNIT
STATUS
Running Status
IR
10 (000A)h
Signed Integer
(32-bit)
GENUNIT
min_left
Minutes Left for Start
IR
12 (000C)h
IEEE Float
(32-bit)
GENUNIT
HEATCOOL
Heat/Cool Status
IR
14 (000E)h
Signed Integer
(32-bit)
GENUNIT
SP_SEL
Setpoint Select
IR
16 (0010)h
Signed Integer
(32-bit)
GENUNIT
CAP_T
Percent Total Capacity
IR
18 (0012)h
Signed Integer
(32-bit)
GENUNIT
CAPA_T
Circuit A Total Capacity
IR
20 (0014)h
Signed Integer
(32-bit)
GENUNIT
CAPB_T
Circuit B Total Capacity
IR
22 (0016)h
Signed Integer
(32-bit)
GENUNIT
DEM_LIM
Active Demand Limit Val
IR
24 (0018)h
Signed Integer
(32-bit)
GENUNIT
SP
Current Setpoint
IR
26 (001A)h
IEEE Float
(32-bit)
GENUNIT
CTRL_PNT
Control Point
IR
28 (001C)h
IEEE Float
(32-bit)
GENUNIT
ALM
Alarm State
IR
30 (001E)h
Signed Integer
(32-bit)
MODBUSRS
modrt_en
RTU Server Enable
IR
32 (0020)h
Signed Integer
(32-bit)
MODBUSRS
ser_UID
Server UID
IR
34 (0022)h
Signed Integer
(32-bit)
MODBUSRS
baudrate
Baudrate
IR
40 (0028)h
Signed Integer
(32-bit)
MODBUSRS
parity
Parity
IR
42 (002A)h
Signed Integer
(32-bit)
MODBUSRS
stop_bit
Stop bit
IR
44 (002C)h
Signed Integer
(32-bit)
PROTOCOL
CTRL_WT
Control Water
IR
46 (002E)h
IEEE Float
(32-bit)
TEMP
EWT
Entering Water Temp
IR
48 (0030)h
IEEE Float
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
14 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
TEMP
LWT
Leaving Water Temp
IR
50 (0032)h
IEEE Float
(32-bit)
TEMP
OAT
Outside Air Temperature
IR
52 (0034)h
IEEE Float
(32-bit)
TEMP
CHWSTEMP
Chilled Water Syst Temp
IR
54 (0036)h
IEEE Float
(32-bit)
TEMP
SCT_A
Saturated Condens Tp A
IR
56 (0038)h
IEEE Float
(32-bit)
TEMP
SST_A
Saturated Suction Tp A
IR
58 (003A)h
IEEE Float
(32-bit)
TEMP
SCT_B
Saturated Condens Tp B
IR
60 (003C)h
IEEE Float
(32-bit)
TEMP
SST_B
Saturated Suction Tp B
IR
62 (003E)h
IEEE Float
(32-bit)
TEMP
SUCT_A
Gas Suction Temp A
IR
68 (0044)h
IEEE Float
(32-bit)
TEMP
SUCT_B
Gas Suction Temp B
IR
70 (0046)h
IEEE Float
(32-bit)
LOADFACT
SH_A
Suction Superheat A
IR
72 (0048)h
IEEE Float
(32-bit)
LOADFACT
SH_B
Suction Superheat B
IR
74 (004A)h
IEEE Float
(32-bit)
TEMP
COND_EWT
Cond Entering Water Temp
IR
80 (0050)h
IEEE Float
(32-bit)
TEMP
COND_LWT
Cond Leaving Water Temp
IR
82 (0052)h
IEEE Float
(32-bit)
TEMP
DGT_A
Discharge Gas Temp cir A
IR
84 (0054)h
IEEE Float
(32-bit)
TEMP
DGT_B
Discharge Gas Temp cir B
IR
86 (0056)h
IEEE Float
(32-bit)
TEMP
SPACETMP
Optional Space Temp
IR
92 (005C)h
IEEE Float
(32-bit)
PRESSURE
DP_A
Discharge Pressure A
IR
94 (005E)h
IEEE Float
(32-bit)
PRESSURE
SP_A
Suction Pressure A
IR
96 (0060)h
IEEE Float
(32-bit)
PRESSURE
DP_B
Discharge Pressure B
IR
98 (0062)h
IEEE Float
(32-bit)
PRESSURE
SP_B
Suction Pressure B
IR
100 (0064)h
IEEE Float
(32-bit)
PUMPSTAT
CL_WPIN
Cool Inlet Water Press
IR
102 (0066)h
IEEE Float
(32-bit)
PUMPSTAT
CL_WPOUT
Cool Outlet Water Press
IR
104 (0068)h
IEEE Float
(32-bit)
INPUTS
ONOFF_SW
On/Off - Remote Switch
IR
106 (006A)h
Signed Integer
(32-bit)
INPUTS
HC_SW
Remote heat/Cool Switch
IR
108 (006C)h
Signed Integer
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
15 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
INPUTS
on_ctrl
Current Control
IR
110 (006E)h
Signed Integer
(32-bit)
INPUTS
SETP_SW1
Remote Setpoint Switch1
IR
112 (0070)h
Signed Integer
(32-bit)
INPUTS
LIM_SW1
Limit Switch 1 Status
IR
114 (0072)h
Signed Integer
(32-bit)
INPUTS
LIM_SW2
Limit Switch 2 Status
IR
116 (0074)h
Signed Integer
(32-bit)
INPUTS
FLOW_SW
Exchanger Flow Switch
IR
118 (0076)h
Signed Integer
(32-bit)
INPUTS
HP_SW_A
High Pressure Switch A
IR
128 (0080)h
Signed Integer
(32-bit)
INPUTS
HP_SW_B
High Pressure Switch B
IR
130 (0082)h
Signed Integer
(32-bit)
INPUTS
LOCK_SW
Lock Input
IR
134 (0086)h
Signed Integer
(32-bit)
AIR_COND
FanSp_A
Variable Speed Fan A
IR
156 (009C)h
IEEE Float
(32-bit)
AIR_COND
FanSp_B
Variable Speed Fan B
IR
158 (009E)h
IEEE Float
(32-bit)
OUTPUTS
EXVPosA
EXV Position Circuit A
IR
160 (00A0)h
IEEE Float
(32-bit)
OUTPUTS
EXVPosB
EXV Position Circuit B
IR
162 (00A2)h
IEEE Float
(32-bit)
OUTPUTS
boiler
Boiler Output
IR
176 (00B0)h
Signed Integer
(32-bit)
OUTPUTS
EHS
Electrical Heat Stages
IR
178 (00B2)h
Signed Integer
(32-bit)
OUTPUTS
CP_A1
Compressor A1 Output
IR
182 (00B6)h
Signed Integer
(32-bit)
OUTPUTS
CP_A2
Compressor A2 Output
IR
184 (00B8)h
Signed Integer
(32-bit)
OUTPUTS
CP_A3
Compressor A3 Output
IR
186 (00BA)h
Signed Integer
(32-bit)
OUTPUTS
CP_B1
Compressor B1 Output
IR
190 (00BE)h
Signed Integer
(32-bit)
OUTPUTS
CP_B2
Compressor B2 Output
IR
192 (00C0)h
Signed Integer
(32-bit)
OUTPUTS
alarm
Alarm Relay Output
IR
222 (00DE)h
Signed Integer
(32-bit)
OUTPUTS
RUNNING
Running Status
IR
224 (00E0)h
Signed Integer
(32-bit)
OUTPUTS
alert
Alert status
IR
226 (00E2)h
Signed Integer
(32-bit)
OUTPUTS
shutdown
Shutdown signal
IR
228 (00E4)h
Signed Integer
(32-bit)
AIR_COND
FanSt_A
Circuit A Fan Stages
IR
232 (00E8)h
Signed Integer
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
16 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
AIR_COND
FanSt_B
Circuit B Fan Stages
IR
234 (00EA)h
Signed Integer
(32-bit)
PUMPSTAT
CL_PUMP1
Cooler Pump 1 Command
IR
240 (00F0)h
Signed Integer
(32-bit)
PUMPSTAT
CL_PUMP2
Cooler Pump 2 Command
IR
242 (00F2)h
Signed Integer
(32-bit)
PUMPSTAT
CD_PUMP1
Cond Pump 1 Command
IR
244 (00F4)h
Signed Integer
(32-bit)
PUMPSTAT
CD_PUMP2
Cond Pump 2 Command
IR
246 (00F6)h
Signed Integer
(32-bit)
PUMPSTAT
CL_WPIN
Cool Inlet Water Press
IR
250 (00FA)h
IEEE Float
(32-bit)
PUMPSTAT
CL_WPOUT
Cool Outlet Water Press
IR
252 (00FC)h
IEEE Float
(32-bit)
PUMPSTAT
CD_WPIN
Cond Inlet Water Press
IR
254 (00FE)h
IEEE Float
(32-bit)
PUMPSTAT
CD_WPOUT
Cond Outlet Water Press
IR
256 (0100)h
IEEE Float
(32-bit)
PUMPSTAT
CL_WFLOW
Cool Water flow
IR
268 (010C)h
IEEE Float
(32-bit)
PUMPSTAT
CD_WFLOW
Cond Water flow
IR
272 (0110)h
IEEE Float
(32-bit)
PUMPSTAT
CL_WdtSp
Cool Water DT Setpoint
IR
276 (0114)h
IEEE Float
(32-bit)
PUMPSTAT
CL_WdpSp
Cool Water DP Setpoint
IR
278 (0116)h
IEEE Float
(32-bit)
PUMPSTAT
CL_DvPos
Cool Pump drive position
IR
280 (0118)h
Signed Integer
(32-bit)
PUMPSTAT
CD_DvPos
Cond Pump drive position
IR
282 (011A)h
Signed Integer
(32-bit)
RUNTIME
hr_mach
Machine Operating Hours
IR
294 (0126)h
IEEE Float
(32-bit)
RUNTIME
st_mach
Machine Starts
IR
296 (0128)h
IEEE Float
(32-bit)
RUNTIME
hr_cp_a1
Compressor A1 Hours
IR
298 (012A)h
IEEE Float
(32-bit)
RUNTIME
hr_cp_a2
Compressor A2 Hours
IR
300 (012C)h
IEEE Float
(32-bit)
RUNTIME
hr_cp_a3
Compressor A3 Hours
IR
302 (012E)h
IEEE Float
(32-bit)
RUNTIME
hr_cp_b1
Compressor B1 Hours
IR
306 (0132)h
IEEE Float
(32-bit)
RUNTIME
hr_cp_b2
Compressor B2 Hours
IR
308 (0134)h
IEEE Float
(32-bit)
RUNTIME
st_cp_a1
Compressor A1 Starts
IR
314 (013A)h
IEEE Float
(32-bit)
RUNTIME
st_cp_a2
Compressor A2 Starts
IR
316 (013C)h
IEEE Float
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
17 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
RUNTIME
st_cp_a3
Compressor A3 Starts
IR
318 (013E)h
IEEE Float
(32-bit)
RUNTIME
st_cp_b1
Compressor B1 Starts
IR
322 (0142)h
IEEE Float
(32-bit)
RUNTIME
st_cp_b2
Compressor B2 Starts
IR
324 (0144)h
IEEE Float
(32-bit)
RUNTIME
hr_clpm1
Cooler Pump 1 Hours
IR
330 (014A)h
IEEE Float
(32-bit)
RUNTIME
hr_clpm2
Cooler Pump 2 Hours
IR
332 (014C)h
IEEE Float
(32-bit)
RUNTIME
chr_mach
Cooling Operating Hours
IR
360 (0168)h
IEEE Float
(32-bit)
RUNTIME
hhr_mach
Heating Operating Hours
IR
362 (016A)h
IEEE Float
(32-bit)
MODES
m_delay
Delay Active
IR
364 (016C)h
Signed Integer
(32-bit)
MODES
m_2ndspt
Second Setpoint Active
IR
366 (016E)h
Signed Integer
(32-bit)
MODES
m_limit
Demand Limit Active
IR
370 (0172)h
Signed Integer
(32-bit)
MODES
m_cooler
Cooler Heater Active
IR
374 (0176)h
Signed Integer
(32-bit)
MODES
m_night
Night Low Noise Active
IR
380 (017C)h
Signed Integer
(32-bit)
MODES
m_leadla
Master Slave Active
IR
384 (0180)h
Signed Integer
(32-bit)
MODES
m_heater
Electric Heat Active
IR
388 (0184)h
Signed Integer
(32-bit)
MODES
m_boiler
Boiler Active
IR
392 (0188)h
Signed Integer
(32-bit)
MODES
m_ice
Ice Mode Active
IR
394 (018A)h
Signed Integer
(32-bit)
GENCONF
lead_cir
Cir Priority Sequence
IR
428 (01AC)h
Signed Integer
(32-bit)
GENCONF
off_on_d
Unit Off to On Delay
IR
434 (01B2)h
Signed Integer
(32-bit)
GENCONF
nh_limit
Night Capacity Limit
IR
436 (01B4)h
Signed Integer
(32-bit)
GENCONF
nh_start
Night Mode Start Hour
IR
438 (01B6)h
Signed Integer
(32-bit)
GENCONF
nh_end
Night Mode End Hour
IR
440 (01B8)h
Signed Integer
(32-bit)
HCCONFIG
both_sel
HSM Both Command Select
IR
448 (01C0)h
Signed Integer
(32-bit)
HCCONFIG
boil_on
Boiler Manual Command
IR
454 (01C6)h
Signed Integer
(32-bit)
PUMPCONF
clpmpseq
Cooler Pumps Sequence
IR
456 (01C8)h
Signed Integer
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
18 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
PUMPCONF
cdpmpseq
Condenser Pumps Sequence
IR
458 (01CA)h
Signed Integer
(32-bit)
PUMPCONF
clpmpdel
Pump Auto Rotation Delay
IR
460 (01CC)h
Signed Integer
(32-bit)
HCCONFIG
boil_th
Boiler OAT Threshold
IR
472 (01D8)h
IEEE Float
(32-bit)
HCCONFIG
ehs_th
Elec Stage OAT Threshold
IR
474 (01DA)h
IEEE Float
(32-bit)
HCCONFIG
ehs_pull
Electrical pulldown time
IR
478 (01DE)h
Signed Integer
(32-bit)
FACTORY
unit_typ
Unit Type
IR
484 (01E4)h
Signed Integer
(32-bit)
FACTORY
unitsize
Unit Size
IR
486 (01E6)h
Signed Integer
(32-bit)
FACTORY
ehs_sel
Electrical Heater Select
IR
492 (01EC)h
Signed Integer
(32-bit)
FACTORY
boil_sel
Boiler Command Select
IR
494 (01EE)h
Signed Integer
(32-bit)
FACTORY
cool_pmp
Cool Water Pump Type
IR
506 (01FA)h
Signed Integer
(32-bit)
FACTORY
clp_dual
Dual Cool Water Pump
IR
508 (01FC)h
Signed Integer
(32-bit)
FACTORY
coolvpmp
Cool Water Pump Drive
IR
510 (01FE)h
Signed Integer
(32-bit)
FACTORY
condvpmp
Cond Water Pump Drive
IR
512 (0200)h
Signed Integer
(32-bit)
FACTORY
leak_chk
Leakage Charge Detection
IR
514 (0202)h
Signed Integer
(32-bit)
FACTORY2
ClExchTp
Exchanger Type
IR
534 (0216)h
Signed Integer
(32-bit)
MAINTCFG
s_alert
Servicing Alert
IR
540 (021C)h
Signed Integer
(32-bit)
MAINTCFG
charge_c
Refrigerant Charge Ctrl
IR
542 (021E)h
Signed Integer
(32-bit)
MAINTCFG
w_loop_c
Water Loop Ctrl
IR
544 (0220)h
Signed Integer
(32-bit)
MST_SLV
ms_sel
Master/Slave Select
IR
554 (022A)h
Signed Integer
(32-bit)
MST_SLV
ms_ctrl
Master Control Type
IR
556 (022C)h
Signed Integer
(32-bit)
MST_SLV
slv_addr
Slave Address
IR
558 (022E)h
Signed Integer
(32-bit)
MST_SLV
lag_mini
Lag Minimum Running Time
IR
562 (0232)h
Signed Integer
(32-bit)
MST_SLV
lstr_tim
Lead/Lag Start Timer
IR
564 (0234)h
Signed Integer
(32-bit)
MST_SLV
lag_pump
Lag Unit Pump Control
IR
570 (023A)h
Signed Integer
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
19 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
MST_SLV
ll_serie
Chiller In Series
IR
574 (023E)h
Signed Integer
(32-bit)
M_MSTSLV
ms_activ
Master/Slave Ctrl Active
IR
578 (0242)h
Signed Integer
(32-bit)
M_MSTSLV
lead_sel
Lead Unit is the:
IR
580 (0244)h
Signed Integer
(32-bit)
M_MSTSLV
slv_stat
Slave Chiller State
IR
582 (0246)h
Signed Integer
(32-bit)
M_MSTSLV
slv_capt
Slave Chiller Total Cap
IR
584 (0248)h
Signed Integer
(32-bit)
M_MSTSLV
ms_error
Master/Slave Error
IR
594 (0252)h
Signed Integer
(32-bit)
M_MSTSLV
cap_max
Max Available Capacity ?
IR
596 (0254)h
Signed Integer
(32-bit)
M_MSTSLV
slav_hr
Slave Operating Hours
IR
600 (0258)h
IEEE Float
(32-bit)
M_MSTSLV
slav_ewt
Slave Cooler Ent. Fluid
IR
602 (025A)h
IEEE Float
(32-bit)
M_MSTSLV
slav_lwt
Slave Cooler Leav. Fluid
IR
604 (025C)h
IEEE Float
(32-bit)
FACTORY
flui_typ
Fluid Type
IR
606 (025E)h
Signed Integer
(32-bit)
SERVICE1
ewt_opt
Entering Fluid Control
IR
608 (0260)h
Signed Integer
(32-bit)
SERVICE1
hd_pg
Prop PID Gain
IR
610 (0262)h
IEEE Float
(32-bit)
SERVICE1
hd_ig
Int PID Gain
IR
612 (0264)h
IEEE Float
(32-bit)
SERVICE1
hd_dg
Deri PID Gain
IR
614 (0266)h
IEEE Float
(32-bit)
SERVICE1
sh_sp_a
EXV A Superheat Setpoint
IR
616 (0268)h
IEEE Float
(32-bit)
SERVICE1
sh_sp_b
EXV B Superheat Setpoint
IR
618 (026A)h
IEEE Float
(32-bit)
SERVICE1
hp_th
High Pressure Threshold
IR
622 (026E)h
IEEE Float
(32-bit)
SERVICE1
heatersp
Cooler heater Delta Spt
IR
624 (0270)h
IEEE Float
(32-bit)
SERVICE1
pump_cyc
Pump Cycling Freeze Prot
IR
626 (0272)h
Signed Integer
(32-bit)
SERVICE1
freezesp
Brine Freeze Setpoint
IR
628 (0274)h
IEEE Float
(32-bit)
SERVICE1
min_lwt
Brine Minimum LWT
IR
630 (0276)h
IEEE Float
(32-bit)
SERVICE1
zm_spt
Auto Z Multiplier
IR
634 (027A)h
Signed Integer
(32-bit)
LOADFACT
ctrl_avg
Average Ctrl Water Temp
IR
720 (02D0)h
IEEE Float
(32-bit)

ECG–UG–16-014
REVISION
DATE
PAGE
DynaCIAT LG/LGN –
Modbus
Communication
Original
03/04/2017
20 OF 21
This document is the property of CIAT Corporation and is delivered on the express condition that it is not to be
disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT Corporation
without its written consent, and that no right is granted to disclose or so use any information contained in said
document.
Table
Item
Description
Media
Type
Address
(hex)
Format
LOADFACT
diff_wt
Differential Water Temp
IR
722 (02D2)h
IEEE Float
(32-bit)
LOADFACT
delta_t
Water Delta T
IR
724 (02D4)h
IEEE Float
(32-bit)
LAST_POR
date_on1
Power On 1: day-mon-year
IR
892 (037C)h
IEEE Float
(32-bit)
LAST_POR
time_on1
Power On 1: hour-minute
IR
894 (037E)h
IEEE Float
(32-bit)
LAST_POR
date_of1
PowerDown 1:day-mon-year
IR
896 (0380)h
IEEE Float
(32-bit)
LAST_POR
time_of1
PowerDown 1:hour-minute
IR
898 (0382)h
IEEE Float
(32-bit)
LAST_POR
date_on2
Power On 2: day-mon-year
IR
900 (0384)h
IEEE Float
(32-bit)
LAST_POR
time_on2
Power On 2: hour-minute
IR
902 (0386)h
IEEE Float
(32-bit)
LAST_POR
date_of2
PowerDown 2:day-mon-year
IR
904 (0388)h
IEEE Float
(32-bit)
LAST_POR
time_of2
PowerDown 2:hour-minute
IR
906 (038A)h
IEEE Float
(32-bit)
LAST_POR
date_on3
Power On 3: day-mon-year
IR
908 (038C)h
IEEE Float
(32-bit)
LAST_POR
time_on3
Power On 3: hour-minute
IR
910 (038E)h
IEEE Float
(32-bit)
LAST_POR
date_of3
PowerDown 3:day-mon-year
IR
912 (0390)h
IEEE Float
(32-bit)
LAST_POR
time_of3
PowerDown 3:hour-minute
IR
914 (0392)h
IEEE Float
(32-bit)
LAST_POR
date_on4
Power On 4: day-mon-year
IR
916 (0394)h
IEEE Float
(32-bit)
LAST_POR
time_on4
Power On 4: hour-minute
IR
918 (0396)h
IEEE Float
(32-bit)
LAST_POR
date_of4
PowerDown 4:day-mon-year
IR
920 (0398)h
IEEE Float
(32-bit)
LAST_POR
time_of4
PowerDown 4:hour-minute
IR
922 (039A)h
IEEE Float
(32-bit)
LAST_POR
date_on5
Power On 5: day-mon-year
IR
924 (039C)h
IEEE Float
(32-bit)
LAST_POR
time_on5
Power On 5: hour-minute
IR
926 (039E)h
IEEE Float
(32-bit)
LAST_POR
date_of5
PowerDown 5:day-mon-year
IR
928 (03A0)h
IEEE Float
(32-bit)
LAST_POR
time_of5
PowerDown 5:hour-minute
IR
930 (03A2)h
IEEE Float
(32-bit)
SERMAINT
S_RESET
Reset Maintenance Alert
IR
952 (03B8)h
Signed Integer
(32-bit)
SERMAINT
charge_m
2 - Refrigerant Charge
IR
954 (03BA)h
Signed Integer
(32-bit)