Product signal types

YTCC comes with 25 ready signal types in the Product library. Each type defines the signals of one piece of equipment (its elements), their data types, units, alarms and archives, and address templates for the protocols listed. Parameters such as the base register or the first information object address are entered when you create an instance; see Signal types and instances and Use the type library.

In the tables, Alarm shows the priority of a state alarm or the levels of a limit alarm; (off) means the alarm is defined but switched off in the type. The library texts are in English.

Process

Air compressor

Running, loaded, fault and auto status, start / stop commands with feedback, discharge pressure and temperature, running and loaded hours.

Name: Compressor · 10 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
running	Bool	read	—	—	Running
loaded	Bool	read	—	—	Loaded
fault	Bool	read	—	High	Compressor fault
auto	Bool (AutoManual)	read	—	—	Auto mode
start_cmd	Bool	write	—	—	Start command
stop_cmd	Bool	write	—	—	Stop command
discharge_pressure	Float32	read	bar	H (off)	Discharge pressure
discharge_temp	Float32	read	°C	H/HH	Discharge temperature
run_hours	Float32	read	h	—	Running hours
load_hours	Float32	read	h	—	Loaded hours

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Flow meter

Flow rate with prepared (inactive) limits and totalised volume.

Name: FlowMeter · 2 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA, DNP3

Element	Data type	Access	Unit	Alarm	Description
flow	Float32	read	m³/h	LL/L/H/HH (off)	Flow
total	Float64	read	m³	—	Totalised volume

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2
ai	DNP3 index of the first analog input	0
cnt	DNP3 counter index of the first counter	0

Pressure transmitter

Single pressure measurement with prepared (inactive) limits.

Name: PressureTransmitter · 1 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA, DNP3

Element	Data type	Access	Unit	Alarm	Description
``	Float32	read	bar	LL/L/H/HH (off)	Pressure

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2
ai	DNP3 index of the first analog input	0

Pump (direct on line)

Running, fault, auto and dry-running status, start / stop commands with feedback, discharge pressure, running hours and start counter.

Name: Pump · 9 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
running	Bool	read	—	—	Running
fault	Bool	read	—	High	Pump fault
auto	Bool (AutoManual)	read	—	—	Auto mode
dry_run	Bool	read	—	High	Dry running
start_cmd	Bool	write	—	—	Start command
stop_cmd	Bool	write	—	—	Stop command
discharge_pressure	Float32	read	bar	L/H (off)	Discharge pressure
run_hours	Float32	read	h	—	Running hours
starts	UInt32	read	—	—	Number of starts

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Tank / reservoir level

Level, level in percent, volume and level switches. Level alarms are prepared but inactive; set them for the tank geometry.

Name: TankLevel · 5 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
level	Float32	read	m	LL/L/H/HH (off)	Level
level_pct	Float32	read	%	—	Level in percent
volume	Float32	read	m³	—	Volume
high_switch	Bool	read	—	High	High level switch
low_switch	Bool	read	—	High	Low level switch

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Temperature transmitter

Single temperature measurement with prepared (inactive) limits.

Name: TemperatureTransmitter · 1 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA, DNP3

Element	Data type	Access	Unit	Alarm	Description
``	Float32	read	°C	LL/L/H/HH (off)	Temperature

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2
ai	DNP3 index of the first analog input	0

Motors

Motor (direct on line)

Running, fault, overload and auto status, start / stop commands with feedback, current, running hours and start counter.

Name: MotorDOL · 9 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
running	Bool	read	—	—	Running
fault	Bool	read	—	High	Motor fault
overload_trip	Bool	read	—	High	Overload trip
auto	Bool (AutoManual)	read	—	—	Auto mode
start_cmd	Bool	write	—	—	Start command
stop_cmd	Bool	write	—	—	Stop command
current	Float32	read	A	—	Motor current
run_hours	Float32	read	h	—	Running hours
starts	UInt32	read	—	—	Number of starts

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Motor with frequency converter

Running, fault and auto status, start / stop / reset commands, speed setpoint and actual speed, output frequency, current, power, DC bus voltage, fault code and running hours.

Name: MotorVFD · 14 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
running	Bool	read	—	—	Running
fault	Bool	read	—	High	Drive fault
auto	Bool (AutoManual)	read	—	—	Auto mode
start_cmd	Bool	write	—	—	Start command
stop_cmd	Bool	write	—	—	Stop command
reset_cmd	Bool	write	—	—	Fault reset command
speed_setpoint	Float32	read/write	%	—	Speed setpoint
speed_actual	Float32	read	%	—	Actual speed
output_frequency	Float32	read	Hz	—	Output frequency
motor_current	Float32	read	A	—	Motor current
motor_power	Float32	read	kW	—	Motor power
dc_bus_voltage	Float32	read	V	—	DC bus voltage
fault_code	UInt16	read	—	—	Fault code
run_hours	Float32	read	h	—	Running hours

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Valves

Modulating valve

Position feedback and setpoint, valve fault and auto mode.

Name: ValveModulating · 4 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
position	Float32	read	%	—	Valve position
position_setpoint	Float32	read/write	%	—	Valve position setpoint
fault	Bool	read	—	Medium	Valve fault
auto	Bool (AutoManual)	read	—	—	Auto mode

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

On/off valve

Opened / closed limit switches, open / close commands with feedback, travel fault and auto mode.

Name: ValveOnOff · 6 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
opened	Bool	read	—	—	Opened
closed	Bool	read	—	—	Closed
open_cmd	Bool	write	—	—	Open command
close_cmd	Bool	write	—	—	Close command
fault	Bool	read	—	Medium	Valve travel fault
auto	Bool (AutoManual)	read	—	—	Auto mode

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

HVAC

Air handling unit

Enable command, running and fan status, fan / filter / frost alarms, supply and return air temperature, supply setpoint, heating and cooling valves and damper position.

Name: AHU · 14 elements · Protocols: Modbus, OPC UA, BACnet

Element	Data type	Access	Unit	Alarm	Description
enable_cmd	Bool	read/write	—	—	Enable command
running	Bool	read	—	—	Running
auto	Bool (AutoManual)	read	—	—	Auto mode
supply_fan_running	Bool	read	—	—	Supply fan running
exhaust_fan_running	Bool	read	—	—	Exhaust fan running
fan_fault	Bool	read	—	High	Fan fault
filter_dirty	Bool	read	—	Low	Filter dirty
frost_alarm	Bool	read	—	High	Frost protection
supply_temp	Float32	read	°C	—	Supply air temperature
return_temp	Float32	read	°C	—	Return air temperature
supply_temp_setpoint	Float32	read/write	°C	—	Supply air temperature setpoint
heating_valve	Float32	read	%	—	Heating valve position
cooling_valve	Float32	read	%	—	Cooling valve position
damper_pos	Float32	read	%	—	Damper position

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
ns	OPC UA namespace index	2
bi	BACnet instance of the first binary input	0
ai	BACnet instance of the first analog input	0
ao	BACnet analog output instance of the first output	0
av	BACnet analog value instance of the first value	0
bv	BACnet binary value instance of the first value	0

Fan (direct on line)

Running, fault and auto status, start / stop commands with feedback and running hours.

Name: Fan · 6 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
running	Bool	read	—	—	Running
fault	Bool	read	—	High	Fan fault
auto	Bool (AutoManual)	read	—	—	Auto mode
start_cmd	Bool	write	—	—	Start command
stop_cmd	Bool	write	—	—	Stop command
run_hours	Float32	read	h	—	Running hours

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Safety

Door contact

Single door contact with a door open alarm.

Name: DoorAlarm · 1 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
``	Bool (DoorState)	read	—	Low	Door contact

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Fire alarm zone

Fire, zone fault and zone disabled status.

Name: FireAlarmZone · 3 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
fire	Bool	read	—	Critical	Fire
fault	Bool	read	—	Medium	Fire zone fault
disabled	Bool	read	—	—	Zone disabled

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Switchgear

Circuit breaker (IEC double point)

Double-point position with separate intermediate and faulty bits, open / close commands with select-before-operate and position feedback, protection and supply alarms, operation counter.

Name: CircuitBreaker · 15 elements · Protocols: IEC 104, IEC 101, OPC UA, DNP3

Element	Data type	Access	Unit	Alarm	Description
pos	Enum (DoublePoint)	read	—	—	Position
pos_intermediate	Bool	read	—	Medium	Intermediate position
pos_faulty	Bool	read	—	High	Faulty position
open_cmd	Bool	write	—	—	Open command
close_cmd	Bool	write	—	—	Close command
local	Bool (LocalRemote)	read	—	—	Local control
interlocked	Bool	read	—	—	Interlocked
close_blocked	Bool	read	—	—	Close blocked
protection_trip	Bool	read	—	High	Protection trip
relay_fault	Bool	read	—	High	Protection relay fault
dc_supply_fail	Bool	read	—	High	Control DC supply lost
mcb_tripped	Bool	read	—	Medium	MCB tripped
sf6_low	Bool	read	—	High	SF6 pressure low
operations	UInt32	read	—	—	Operation counter
current	Float32	read	A	—	Current

Parameters:

Parameter	Meaning	Default
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2
dbi	DNP3 double-bit input index of the first element	0
bi	DNP3 index of the first binary input	0
bo	DNP3 binary output index of the first command	0
ai	DNP3 index of the first analog input	0
cnt	DNP3 counter index of the first counter	0

Circuit breaker (PLC single bits)

Breaker and disconnector position bits, outputs, lock and open / close commands in an 8-byte PLC block.

Name: CircuitBreakerPlc · 12 elements · Protocols: Modbus, S7, OPC UA

Element	Data type	Access	Unit	Alarm	Description
opened	Bool	read	—	—	Opened
closed	Bool	read	—	—	Closed
open_output	Bool	read	—	—	Open output active
close_output	Bool	read	—	—	Close output active
disc_opened	Bool	read	—	—	Disconnector opened
disc_closed	Bool	read	—	—	Disconnector closed
locked	Bool	read	—	—	Locked
open_cmd	Bool	read/write	—	—	Open command
close_cmd	Bool	read/write	—	—	Close command
open_timer	UInt16	read	s	—	Open timer
close_timer	UInt16	read	s	—	Close timer
lock_word	UInt16	read	—	—	Lock word

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ns	OPC UA namespace index	2

Disconnector (IEC double point)

Double-point position with separate intermediate and faulty bits, open / close commands with select-before-operate and position feedback, operation counter.

Name: Disconnector · 9 elements · Protocols: IEC 104, IEC 101, OPC UA, DNP3

Element	Data type	Access	Unit	Alarm	Description
pos	Enum (DoublePoint)	read	—	—	Position
pos_intermediate	Bool	read	—	Medium	Intermediate position
pos_faulty	Bool	read	—	High	Faulty position
open_cmd	Bool	write	—	—	Open command
close_cmd	Bool	write	—	—	Close command
local	Bool (LocalRemote)	read	—	—	Local control
interlocked	Bool	read	—	—	Interlocked
mcb_tripped	Bool	read	—	Medium	Motor supply MCB tripped
operations	UInt32	read	—	—	Operation counter

Parameters:

Parameter	Meaning	Default
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2
dbi	DNP3 double-bit input index of the first element	0
bi	DNP3 index of the first binary input	0
bo	DNP3 binary output index of the first command	0
cnt	DNP3 counter index of the first counter	0

Protection

Feeder protection relay

Currents, voltages, power, power factor, frequency, fault distance, protection trips, relay healthy status and auto-reclose counter.

Name: ProtectionRelay · 18 elements · Protocols: IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
i_l1	Float32	read	A	—	Current L1
i_l2	Float32	read	A	—	Current L2
i_l3	Float32	read	A	—	Current L3
i_n	Float32	read	A	—	Neutral current
u_l1_l2	Float32	read	kV	—	Voltage L1-L2
u_l2_l3	Float32	read	kV	—	Voltage L2-L3
u_l3_l1	Float32	read	kV	—	Voltage L3-L1
p	Float32	read	MW	—	Active power
q	Float32	read	Mvar	—	Reactive power
pf	Float32	read	—	—	Power factor
frequency	Float32	read	Hz	—	Frequency
fault_distance	Float32	read	km	—	Fault distance
trip	Bool	read	—	High	Protection trip
earth_fault_trip	Bool	read	—	High	Earth fault trip
overcurrent_trip	Bool	read	—	High	Overcurrent trip
distance_trip	Bool	read	—	High	Distance protection trip
healthy	Bool	read	—	—	Relay healthy
reclose_count	UInt32	read	—	—	Auto-reclose counter

Parameters:

Parameter	Meaning	Default
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Transformers

Power transformer

Oil and winding temperatures, tap position and raise / lower commands, Buchholz, temperature, oil level, pressure relief and protection trips.

Name: PowerTransformer · 17 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
oil_temp	Float32	read	°C	H/HH	Oil temperature
winding_temp	Float32	read	°C	H/HH	Winding temperature
tap_pos	Int16	read	—	—	Tap position
tap_raise_cmd	Bool	write	—	—	Tap raise command
tap_lower_cmd	Bool	write	—	—	Tap lower command
buchholz_alarm	Bool	read	—	High	Buchholz alarm
buchholz_trip	Bool	read	—	Critical	Buchholz trip
oil_temp_alarm	Bool	read	—	Medium	Oil temperature alarm
oil_temp_trip	Bool	read	—	High	Oil temperature trip
winding_temp_alarm	Bool	read	—	Medium	Winding temperature alarm
winding_temp_trip	Bool	read	—	High	Winding temperature trip
oil_level_low	Bool	read	—	Medium	Oil level low
oil_level_high	Bool	read	—	Low	Oil level high
pressure_relief_trip	Bool	read	—	Critical	Pressure relief trip
tap_changer_trip	Bool	read	—	High	Tap changer protection trip
differential_trip	Bool	read	—	Critical	Differential protection trip
overcurrent_trip	Bool	read	—	High	Overcurrent trip

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Generation

Synchronous generator

Power, voltage, current, speed, stator and bearing temperatures, excitation, state, trip, P / Q setpoints, start / stop commands and running hours. Ranges suit units up to 20 MVA; adjust on site.

Name: Generator · 26 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
p_active	Float32	read	kW	—	Active power
q_reactive	Float32	read	kvar	—	Reactive power
s_apparent	Float32	read	kVA	—	Apparent power
pf	Float32	read	—	—	Power factor
frequency	Float32	read	Hz	—	Frequency
u_ab	Float32	read	kV	—	Voltage A-B
u_bc	Float32	read	kV	—	Voltage B-C
u_ca	Float32	read	kV	—	Voltage C-A
i_a	Float32	read	A	—	Current A
i_b	Float32	read	A	—	Current B
i_c	Float32	read	A	—	Current C
speed	Float32	read	rpm	—	Speed
stator_temp_u	Float32	read	°C	H/HH	Stator temperature U
stator_temp_v	Float32	read	°C	H/HH	Stator temperature V
stator_temp_w	Float32	read	°C	H/HH	Stator temperature W
bearing_de_temp	Float32	read	°C	H/HH	Bearing temperature, drive end
bearing_nde_temp	Float32	read	°C	H/HH	Bearing temperature, non-drive end
excitation_current	Float32	read	A	—	Excitation current
excitation_voltage	Float32	read	V	—	Excitation voltage
state	Enum (RunState)	read	—	—	Operating state
trip	Bool	read	—	Critical	Generator trip
p_setpoint	Float32	read/write	kW	—	Active power setpoint
q_setpoint	Float32	read/write	kvar	—	Reactive power setpoint
start_cmd	Bool	write	—	—	Start command
stop_cmd	Bool	write	—	—	Stop command
running_hours	Float64	read	h	—	Running hours

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Hydro turbine (Pelton / Francis)

Speed, guide vane or nozzle opening and setpoint, inlet pressure, net head, HPU oil pressure, state and shutdown alarms. Add nozzle_<n>_pos elements per site.

Name: HydroTurbine · 9 elements · Protocols: IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
speed	Float32	read	%	—	Turbine speed
guide_pos	Float32	read	%	—	Guide vane / nozzle opening
guide_setpoint	Float32	read/write	%	—	Guide vane / nozzle opening setpoint
inlet_pressure	Float32	read	bar	LL/L/H/HH (off)	Inlet pressure
net_head	Float32	read	m	—	Net head
hpu_oil_pressure	Float32	read	bar	LL/L (off)	HPU oil pressure
state	Enum (RunState)	read	—	—	Operating state
emergency_shutdown	Bool	read	—	Critical	Emergency shutdown
hpu_fault	Bool	read	—	High	HPU fault

Parameters:

Parameter	Meaning	Default
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Energy

Generic energy analyser

Phase voltages and currents, total P, Q, S, power factor, frequency and energy totals. For medium voltage change the voltage unit to kV on the signal.

Name: EnergyAnalyser · 18 elements · Protocols: Modbus, S7, IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
u_l1_n	Float32	read	V	—	Voltage L1-N
u_l2_n	Float32	read	V	—	Voltage L2-N
u_l3_n	Float32	read	V	—	Voltage L3-N
u_l1_l2	Float32	read	V	—	Voltage L1-L2
u_l2_l3	Float32	read	V	—	Voltage L2-L3
u_l3_l1	Float32	read	V	—	Voltage L3-L1
i_l1	Float32	read	A	—	Current L1
i_l2	Float32	read	A	—	Current L2
i_l3	Float32	read	A	—	Current L3
p_total	Float32	read	kW	—	Total active power
q_total	Float32	read	kvar	—	Total reactive power
s_total	Float32	read	kVA	—	Total apparent power
pf_total	Float32	read	—	—	Total power factor
frequency	Float32	read	Hz	L/H	Frequency
energy_import_active	Float64	read	kWh	—	Active energy import
energy_export_active	Float64	read	kWh	—	Active energy export
energy_import_reactive	Float64	read	kvarh	—	Reactive energy import
energy_export_reactive	Float64	read	kvarh	—	Reactive energy export

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base register of the instance (1-based)	1
unit_id	Modbus unit id	1
db	S7 data block number	1
off	Byte offset of the instance in the data block	0
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

Energy analyser (Siemens SENTRON PAC3220)

U, I, P, Q, S, power factor, THD, frequency and energy counters over Modbus TCP (35 float32 + 10 float64).

Name: PAC3220 · 45 elements · Protocols: Modbus

Element	Data type	Access	Unit	Alarm	Description
voltage_L1_N	Float32	read	V	L/H	Voltage L1-N
voltage_L2_N	Float32	read	V	L/H	Voltage L2-N
voltage_L3_N	Float32	read	V	L/H	Voltage L3-N
voltage_L1_L2	Float32	read	V	L/H	Voltage L1-L2
voltage_L2_L3	Float32	read	V	L/H	Voltage L2-L3
voltage_L3_L1	Float32	read	V	L/H	Voltage L3-L1
current_L1	Float32	read	A	—	Current L1
current_L2	Float32	read	A	—	Current L2
current_L3	Float32	read	A	—	Current L3
apparent_power_L1	Float32	read	VA	—	Apparent power L1
apparent_power_L2	Float32	read	VA	—	Apparent power L2
apparent_power_L3	Float32	read	VA	—	Apparent power L3
active_power_L1	Float32	read	W	—	Active power L1
active_power_L2	Float32	read	W	—	Active power L2
active_power_L3	Float32	read	W	—	Active power L3
reactive_power_L1	Float32	read	var	—	Reactive power L1
reactive_power_L2	Float32	read	var	—	Reactive power L2
reactive_power_L3	Float32	read	var	—	Reactive power L3
power_factor_L1	Float32	read	—	—	Power factor L1
power_factor_L2	Float32	read	—	—	Power factor L2
power_factor_L3	Float32	read	—	—	Power factor L3
thd_voltage_L1	Float32	read	%	H	Voltage THD L1
thd_voltage_L2	Float32	read	%	H	Voltage THD L2
thd_voltage_L3	Float32	read	%	H	Voltage THD L3
thd_current_L1	Float32	read	%	—	Current THD L1
thd_current_L2	Float32	read	%	—	Current THD L2
thd_current_L3	Float32	read	%	—	Current THD L3
frequency	Float32	read	Hz	L/H	Frequency
voltage_avg_L_N	Float32	read	V	L/H	Average voltage L-N
voltage_avg_L_L	Float32	read	V	L/H	Average voltage L-L
current_avg	Float32	read	A	—	Average current
apparent_power_total	Float32	read	VA	—	Total apparent power
active_power_total	Float32	read	W	—	Total active power
reactive_power_total	Float32	read	var	—	Total reactive power
power_factor_total	Float32	read	—	—	Total power factor
active_energy_import_t1	Float64	read	Wh	—	Active energy import, tariff 1
active_energy_import_t2	Float64	read	Wh	—	Active energy import, tariff 2
active_energy_export_t1	Float64	read	Wh	—	Active energy export, tariff 1
active_energy_export_t2	Float64	read	Wh	—	Active energy export, tariff 2
reactive_energy_import_t1	Float64	read	varh	—	Reactive energy import, tariff 1
reactive_energy_import_t2	Float64	read	varh	—	Reactive energy import, tariff 2
reactive_energy_export_t1	Float64	read	varh	—	Reactive energy export, tariff 1
reactive_energy_export_t2	Float64	read	varh	—	Reactive energy export, tariff 2
apparent_energy_t1	Float64	read	VAh	—	Apparent energy, tariff 1
apparent_energy_t2	Float64	read	VAh	—	Apparent energy, tariff 2

Parameters:

Parameter	Meaning	Default
modbus_base	Modbus base address (device has no register 0)	2
unit_id	Modbus unit id	1

Auxiliary

Station DC supply (rectifier + battery)

DC voltage and DC system alarms. The low-voltage limit is set for a 110 V system; change it on 48 V systems.

Name: DcSystem · 6 elements · Protocols: IEC 104, IEC 101, OPC UA

Element	Data type	Access	Unit	Alarm	Description
dc_voltage	Float32	read	V	L	DC voltage
dc_low_voltage	Bool	read	—	High	DC voltage low
rectifier_fault	Bool	read	—	High	Rectifier fault
earth_fault	Bool	read	—	Medium	DC earth leakage
ac_supply_lost	Bool	read	—	High	AC supply lost
main_breaker_off	Bool	read	—	Medium	DC main breaker off

Parameters:

Parameter	Meaning	Default
ioa	Information object address of the first element (IEC 104 / IEC 101)	1
ns	OPC UA namespace index	2

UPS

Uninterruptible power supply (SNMP UPS-MIB)

Output source, battery status, charge, runtime and temperature, input / output voltage, input frequency, load and alarm count from the standard UPS-MIB (RFC 1628).

Name: UPS · 10 elements · Protocols: OPC UA, SNMP

Element	Data type	Access	Unit	Alarm	Description
output_source	Enum (UpsOutputSource)	read	—	—	Output source
battery_status	Enum (UpsBatteryStatus)	read	—	—	Battery status
battery_charge	Float32	read	%	L/LL	Battery charge remaining
battery_runtime	Float32	read	min	L	Estimated runtime on battery
battery_temp	Float32	read	°C	H	Battery temperature
input_voltage	Float32	read	V	—	Input voltage
input_frequency	Float32	read	Hz	—	Input frequency
output_voltage	Float32	read	V	—	Output voltage
output_load	Float32	read	%	H/HH	Output load
alarms_present	UInt32	read	—	H	Active UPS alarms

Parameters:

Parameter	Meaning	Default
ns	OPC UA namespace index	2