L1
Voltage measurement connection variants
Voltage measurement connection variants
7
7
L2
Establish the connection to the PC
11
Establish the connection to the PC
11
3p 4w
3p 4w
L3
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
(Addr. 509 = 0, standard setting)
(Addr. 509 = 0, standard setting)
Communication connections:
L2
Communication connections:
L2
L2
L2
L2
L2
L2
L2
L2
L2
N
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L3
L3
L3
L3
L3
L3
L3
L3
L3
L3
L2
L2
L2
L2
L2
L2
L2
L2
L2
L2
N
N
N
N
N
N
N
N
N
N
1.
L3
L3
1.
L3
L3
L3
L3
L3
L3
L3
L3
RS232
RS232
Level
Level
PC
(GridVis)
PC
N
N
N
(GridVis)
N
N
N
N
N
N
N
converter
converter
Device connection with a PC via a level
Device connection with a PC via a level
converter (RS232).
converter (RS232).
V1
3
V
V2
V1
V3
V2
V
V3
V
V1
V2
V1
V3
V2
V
V3
V1
V
V2
V1
V3
N
V1
N
V2
V1
V3
N
V2
V
N
V1
V3
V2
V
N
V1
V3
V2
N
V
N
V3
N
V
N
V
V2
V1
V3
V2
V
V3
V
V1
V2
V1
V3
V2
V
V3
V1
V2
V
V1
V3
N
V1
N
V2
V1
N
V3
V2
V
V1
V3
V2
V
V1
V3
V2
N
V
V3
N
V
N
N
N
N
4w
Measurement with 3 phase
Measurement with 3 phase
conductors and neutral conductor.
conductors and neutral conductor.
2.
2.
Level
USB
USB
Level
PC
(GridVis)
PC
(GridVis)
d for
converter
converter
hich
1p 2w1
1p 2w1
Device connection with a PC via a level
Device connection with a PC via a level
(Addr. 509 = 4)
(Addr. 509 = 4)
converter (USB).
converter (USB).
phase
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L2
L2
L2
L2
L2
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L3
L3
ystem
L3
L3
L3
L2
L2
L2
L2
L2
N
N
N
N
N
N
N
N
N
N
More information on device configuration and
More information on device configuration and
L3
L3
L3
L3
L3
communication is provided as of step 12.
communication is provided as of step 12.
N
N
N
N
N
N
N
N
N
N
V1
3
V
V2
N
V1
V3
V2
V
V3
V
V1
V2
V1
V3
V2
V
N
V3
V1
V
V2
N
V1
V3
V1
N
V2
V1
V3
N
V2
V
N
V1
V3
V2
V
N
V1
V3
V2
V
N
V3
V
N
ws
Measured values derived from
Measured values derived from
System with equal loading of the
V
V2
V1
V3
V2
V
V3
V
V1
V2
V1
V3
V2
V
V1
V3
V
V2
V1
V3
N
V1
N
V2
V1
N
V3
V2
V
V1
N
V3
V2
V
V1
N
V3
V2
N
V
N
V3
N
V
N
voltage measurement inputs V2
voltage measurement inputs V2
phases. The measured values of
n
and V3 are taken to be 0 and are
and V3 are taken to be 0 and are
the voltage measurement input V2
not calculated.
not calculated.
14
Programming mode
14
Programming mode
With the primary or secondary device address, you
With the primary or secondary device address, you
obtain data regarding the M-Bus interface from the
obtain data regarding the M-Bus interface from the
• Press and hold buttons 1 and 2 simultaneously
• Press and hold buttons 1 and 2 simultaneously
parameter list and measured value list.
parameter list and measured value list.
for 1 second to switch between display mode
for 1 second to switch between display mode
and programming mode. The text PRG
and programming mode. The text PRG
C
C
appears in the display.
NOTE!
appears in the display.
NOTE!
• Configure the necessary settings for the
• Configure the necessary settings for the
For the parameter list with addresses and
For the parameter list with addresses and
operation of the device in programming mode.
setting ranges and a measured value list,
operation of the device in programming mode.
setting ranges and a measured value list,
• The programming mode can be protected with
• The programming mode can be protected with
see the device's user manual.
see the device's user manual.
a user password.
a user password.
• Button 2 switches between the programming
• Button 2 switches between the programming
Changes to the values of the device addresses are
Changes to the values of the device addresses are
menus:
menus:
not possible via the M-Bus.
not possible via the M-Bus.
1. Current transformer
1. Current transformer
2. Voltage transformer
2. Voltage transformer
The standard setting of the primary device address
The standard setting of the primary device address
3. Parameter list
3. Parameter list
is "1" (see step 17).
is "1" (see step 17).
The device switches from programming mode to
The device switches from programming mode to
M-Bus device features:
M-Bus device features:
display mode if
display mode if
• Addressing via primary and secondary device
• Addressing via primary and secondary device
• no buttons are pressed for 60 seconds.
• no buttons are pressed for 60 seconds.
address in the range from 0 - 250.
address in the range from 0 - 250.
• buttons 1 and 2 are pressed simultaneously for
• buttons 1 and 2 are pressed simultaneously for
• Selectable number of data points (0 - 27)
• Selectable number of data points (0 - 27)
1 second.
1 second.
• Supports protocol types:
• Supports protocol types:
- SND_NKE/$E5
- SND_NKE/$E5
- REQ_UD2/RSP_UD2
- REQ_UD2/RSP_UD2
• Slave search: Search on M-Bus
• Slave search: Search on M-Bus
C
C
NOTE!
NOTE!
Changes are only applied after exiting
Changes are only applied after exiting
programming mode.
programming mode.
3p 4wu
3p 4wu
3p 4u
3p 4u
L1
L1
L1
L1
L1
L1
L1
L1
L1
(Addr. 509 = 1)
(Addr. 509 = 1)
(Addr. 509 = 2)
(Addr. 509 = 2)
L2
L2
L2
L2
L2
L2
L2
L2
L2
L1
L1
L1
L1
L1
L1
L1
L1
L1
L3
L3
L3
L3
L3
L3
L3
L3
L3
L2
L2
L2
L2
L2
L2
L2
L2
L2
N
N
N
L3
L3
L3
L3
L3
L3
L3
L3
L3
M bus
UMG 96
M bus
UMG 96
N
N
N
RM-M
RM-M
UMG 96
UMG 96
M bus
M bus
V2
V
V3
RM-M
V
V1
V2
V1
V3
V2
V
V3
V1
V
V2
V1
V3
V2
V
V3
V1
N
V2
V1
V3
N
V2
V
N
RM-M
V1
V3
V2
V
N
V1
V3
V2
N
V
N
V3
N
V
N
V1
N
V2
V1
V2
V
V3
V
V1
V2
V1
V3
V2
V
V3
V1
V
V2
V1
V3
V2
V
V3
V
V1
N
V2
V1
N
V3
V2
V
V1
V3
V2
V
V1
V3
V2
N
V
V3
N
V
V1
N
V2
V1
N
N
N
N
Measurement via voltage
Measurement via voltage
Measurement with 3 phase
Measurement with 3 phase
transformer with 3 phase
transformer with 3 phase
conductors without neutral
conductors without neutral
conductors and a neutral
conductors and a neutral
conductor. Measured values which
conductor. Measured values which
M bus
UMG 96
conductor.
M bus
conductor.
UMG 96
require an N, use a calculated N.
require an N, use a calculated N.
conductor. Measured values which
RM-M
RM-M
2p 4w
2p 4w
1p 2w
1p 2w
(Addr. 509 = 3)
(Addr. 509 = 3)
(Addr. 509 = 6)
(Addr. 509 = 6)
UMG 96
UMG 96
M bus
M bus
L1
L1
L1
L1
L1
RM-M
L1
RM-M
L1
L1
L1
L2
L2
L2
L1
L1
L1
L1
L1
L1
L1
L1
L1
L2
L2
L3
L3
L3
L2
L2
L2
L2
L2
L2
L2
N
N
N
L2
L2
L2
L2
L3
L3
L3
L2
L2
N
N
N
V2
V
V3
V
V1
V2
V1
V3
V2
V
N
V3
V1
V
V2
N
V1
V3
V2
V
V3
V1
N
V2
V1
V3
N
V2
V
N
V1
V3
V2
V
N
V1
V3
V2
V
N
V3
V
N
V1
N
V2
V1
System with equal loading of the
TN-C system with 1-phase, three-
TN-C system with 1-phase, three-
V2
V
V3
V
V1
V2
V1
V3
V2
V
V3
V1
V
V2
V1
V3
V2
V
V3
V
V1
N
V2
V1
N
V3
V2
V
V1
N
V3
V2
V
V1
N
V3
V2
N
V
N
V3
N
V
N
V1
N
V2
V1
phases. The measured values of
conductor connection. Measured
conductor connection. Measured
the phases. The measured values
the voltage measurement input V2
values derived from voltage
values derived from voltage
for the phases that are not created
are calculated.
are calculated.
measurement input V3 are taken to
measurement input V3 are taken to
be 0 and are not calculated.
be 0 and are not calculated.
Number of data points (addr. 080)
Number of data points (addr. 080)
Each data point is assigned to a certain measured
Each data point is assigned to a certain measured
C
C
NOTE!
NOTE!
value (see "List of the data points"). In order
value (see "List of the data points"). In order
The following section contains an
The following section contains an
to determine the number of data points for the
to determine the number of data points for the
explanation of the programming menus
explanation of the programming menus
telegram RSP_UD2, configure address 080:
telegram RSP_UD2, configure address 080:
current transformer, voltage transformer
current transformer, voltage transformer
and parameters.
and parameters.
Address:
Address:
080
For further information on the
For further information on the
Meaning:
Meaning:
Number of data points
programming menus and interfaces, see
programming menus and interfaces, see
Setting range:
Setting range:
0 to 27
the device's user manual.
the device's user manual.
Default setting:
Default setting:
0 (= all data points)
Example: Read out data points 1 to 6
Example: Read out data points 1 to 6
• Choose setting 6 for the address 080.
• Choose setting 6 for the address 080.
• With each request the device transmits all data
• With each request the device transmits all data
points up to and including data point 6.
points up to and including data point 6.
Example: Read data point 10
Example: Read data point 10
• Choose setting 10 for the address 080.
• Choose setting 10 for the address 080.
• With each request the device transmits all data
• With each request the device transmits all data
points up to and including data point 10.
points up to and including data point 10.
• Do not neglect the required data points.
• Do not neglect the required data points.
Current measurement I1, I2, I3
8
8
M-Bus interface
12
12
The UMG 96 RM-M
3p 2u
3p 2u
L1
L1
L1
L1
L1
L1
L1
L1
L1
• enables current measurements via current
(Addr. 509 = 5)
(Addr. 509 = 5)
The M-Bus interface of the device facilitates
L2
L2
L2
L2
L2
L2
L2
L2
L2
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L3
L3
communication (meter data transfer) via the
L3
L3
L3
L3
L3
L3
L3
L2
L2
L2
L2
L2
L2
L2
L2
L2
• enables the connection of current transformers
L2
M-Bus protocol with a Master device.
L3
L3
L3
L3
L3
L3
L3
L3
L3
L3
• has the current transformer ratio 5/5 A set as
• measures AC currents, does not measure DC
M-Bus interface,
M-Bus interface,
V
V1
V2
V1
V3
V2
V
V3
V1
V
V2
V1
V3
V2
V
V3
V
V3
N
V2
V
N
V3
V1
V2
V
N
V1
V3
V2
N
V
N
V3
N
V
N
V1
N
V2
V1
2-pole plug contact
V3
N
V2
V
2-pole plug contact
N
V1
V3
V1
V2
V1
V3
V2
V
V1
V3
V2
V
V1
V3
V2
V
V3
V
N
V3
V2
V
V1
V3
V2
V
V1
V3
V2
N
V
V3
N
V
V1
N
V2
V1
N
V3
V2
V
V1
V3
N
N
N
N
N
Measurement via voltage
Measurement via voltage
transformer with 3 phase
transformer with 3 phase
conductors without neutral
conductors without neutral
conductor. Measured values which
require an N, use a calculated N.
require an N, use a calculated N.
WARNING!
3p 1w
3p 1w
Serious bodily injury or death can result from:
(Addr. 509 = 7)
(Addr. 509 = 7)
• Contact with bare or stripped live wires.
L1
L1
L1
L1
L1
L1
L1
L1
L1
L2
L2
L2
L2
L2
L2
L2
• Current measurement inputs that are
The UMG 96 RM-M loads the M-Bus with
L3
L3
L3
L3
L3
L3
L3
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L2
L2
L1
L1
an M-Bus device load of 1.5 mA.
L2
L2
L2
L1
L2
L1
L1
L1
L1
L2
L2
L2
L2
L2
L2
L2
L2
L2
L2
L2
L3
L3
L3
L3
L3
L3
L3
L3
L3
L3
L2
L2
L3
L3
L3
L3
L3
L1
L1
L1
L1
L1
L1
L1
L1
De-energise your device before starting
L1
L1
L2
L2
L2
L1
L2
L1
L1
L1
L1
L2
L2
L2
L2
work! Check that it is de-energised.
L2
L2
L2
L2
L3
L3
L3
L3
L2
L2
L2
L3
L3
L3
L3
L3
L3
L3
L3
L3
L3
L3
Earth your system! Use the earth connection
L1
L1
L1
L1
L1
L1
L1
L1
N
N
N
N
N
N
N
L2
L2
L2
L2
L2
L2
L2
L2
points with earthing symbols for this!
L3
L3
L3
L3
L3
L3
L3
L3
V
V1
V2
V1
V3
V2
V
V3
V
V3
N
V2
V
N
V1
V3
V2
V
N
V1
V3
V2
N
V
V1
N
V3
V2
N
V
V1
N
V3
V2
V1
V
V3
V2
V1
V
V3
V2
V
V1
V3
N
N
N
Earth the secondary windings of current
N
N
N
N
N
N
N
N
3 systems with equal loading of
3 systems with equal loading of
transformers and all of the metal parts of the
N
V3
V2
V1
V
V1
N
V3
V2
V1
V2
V
V3
V1
N
V2
V3
V
V2
N
V3
V1
V
N
V3
V
V2
N
V1
V
N
V3
V2
V
N
V3
V
N
the phases. The measured values
V1
V2
V1
V3
V2
V
V1
N
V3
transformer that could be touched!
for the phases that are not created
(L2/L3, L1/L3, L1/L2) for the
(L2/L3, L1/L3, L1/L2) for the
relevant systems are calculated.
relevant systems are calculated.
List of the data points
Programming the current transformer
15
15
1. Switch to programming mode.
2. The symbols for programming mode PRG
3. Press button 1 - the first digit of the input
080
4. Use button 2 to select the value for the
Number of data points
0 to 27
5. Use button 1 to move to the 2nd. digit.
0 (= all data points)
6. Use button 2 to select the value of the
7. Use button 1 to move to the 3rd digit.
8. Use button 2 to select the value of the
9. Confirm with button 1.
10. The complete number flashes.
11. Use button 2 to select the decimal place and
12. Confirm with button 1.
13. The input range of the secondary current
14. Use button 2 to set the secondary current
15. Confirm with button 1.
16. Pressing buttons 1 and 2 simultaneously
12 / 16
12 / 16
Current measurement I1, I2, I3
M-Bus interface
The UMG 96 RM-M
L1
• enables current measurements via current
The M-Bus interface of the device facilitates
L2
transformer only.
transformer only.
L3
communication (meter data transfer) via the
• enables the connection of current transformers
M-Bus protocol with a Master device.
with secondary currents of ../1 A and ../5 A.
with secondary currents of ../1 A and ../5 A.
• has the current transformer ratio 5/5 A set as
standard.
standard.
• measures AC currents, does not measure DC
currents!
currents!
V2
V
N
V1
V3
V2
V
N
V3
V
N
V2
V
V1
V3
V2
V
V3
V
N
N
N
c
c
Risk of injury due
Risk of injury due
to electric voltage!
to electric voltage!
WARNING!
M+
M+
Serious bodily injury or death can result from:
M-
M-
• Contact with bare or stripped live wires.
L1
L2
• Current measurement inputs that are
The UMG 96 RM-M loads the M-Bus with
L3
dangerous to touch on the device and on the
dangerous to touch on the device and on the
L1
an M-Bus device load of 1.5 mA.
L2
current transformers.
current transformers.
L3
De-energise your device before starting
L1
work! Check that it is de-energised.
L2
L3
Earth your system! Use the earth connection
N
points with earthing symbols for this!
V2
V
V1
V3
V2
V
V3
V
N
Earth the secondary windings of current
N
N
transformers and all of the metal parts of the
V2
V
V1
N
V3
V2
V
N
V3
V
N
transformer that could be touched!
List of the data points
Programming the current transformer
Data points
Data points
Description
Description
1. Switch to programming mode.
1
1
Active energy, without backstop
Active energy, without backstop
2. The symbols for programming mode PRG
2
2
Active energy, applied
Active energy, applied
and for the current transformer CT appear.
and for the current transformer CT appear.
3
3
Active energy, supplied
Active energy, supplied
3. Press button 1 - the first digit of the input
4
4
Reactive energy, inductive
Reactive energy, inductive
field for the primary current flashes.
field for the primary current flashes.
5
5
Reactive energy, capacitive
Reactive energy, capacitive
6
4. Use button 2 to select the value for the
6
Reactive energy, without backstop
Reactive energy, without backstop
1st digit.
7
1st digit.
7
Apparent energy
Apparent energy
8
8
Running time, comparator 1a
Running time, comparator 1a
5. Use button 1 to move to the 2nd. digit.
9
9
Running time, comparator 1b
Running time, comparator 1b
6. Use button 2 to select the value of the
2nd digit.
10
2nd digit.
10
Running time, comparator 1c
Running time, comparator 1c
11
11
Running time, comparator 2a
Running time, comparator 2a
7. Use button 1 to move to the 3rd digit.
12
12
Running time, comparator 2b
Running time, comparator 2b
8. Use button 2 to select the value of the
13
13
Running time, comparator 2c
Running time, comparator 2c
3rd digit.
3rd digit.
14
14
Operating hours counter
Operating hours counter
9. Confirm with button 1.
15
15
I_total
I_total
10. The complete number flashes.
16
16
P_total
P_total
11. Use button 2 to select the decimal place and
17
17
Q_total, fundamental oscillation
Q_total, fundamental oscillation
thus the unit of the primary current.
thus the unit of the primary current.
18
18
S_total
S_total
12. Confirm with button 1.
19
19
Uln - Phase L1
Uln - Phase L1
13. The input range of the secondary current
20
20
Uln - Phase L2
Uln - Phase L2
flashes.
flashes.
21
21
Uln - Phase L3
Uln - Phase L3
14. Use button 2 to set the secondary current
22
22
I - Phase L1
I - Phase L1
(value 1 A or 5 A).
(value 1 A or 5 A).
23
23
I - Phase L2
I - Phase L2
15. Confirm with button 1.
24
24
I - Phase L3
I - Phase L3
16. Pressing buttons 1 and 2 simultaneously
25
25
P - Phase L1
P - Phase L1
(1. sec.) exits the programming mode.
(1. sec.) exits the programming mode.
26
26
P - Phase L2
P - Phase L2
Use button 2 to change to the input field for
Use button 2 to change to the input field for
27
27
P - Phase L3
P - Phase L3
the voltage transformer.
the voltage transformer.
Connection variant 3p 4w current measurement
Connection variant 3p 4w current measurement
(I1, I2, I3) via current transformer (Addr. 510 = 0,
(I1, I2, I3) via current transformer (Addr. 510 = 0,
Baud rate (addr. 001, see step 17)
Baud rate (addr. 001, see step 17)
L1
L1
L1
L1
L1
L1
L1
standard setting).
standard setting).
L1
L1
L1
L1
L1
Select a common Baud rate for the M-Bus
L2
L2
L2
L2
L2
L2
L2
Select a common Baud rate for the M-Bus
L2
L2
L2
L2
L2
L3
L3
L3
L3
L3
L3
L3
interfaces in one Bus structure (see step 10)!
interfaces in one Bus structure (see step 10)!
L3
L3
L3
L3
L3
N
N
N
N
N
N
N
N
N
N
N
N
Setting
Baud rate
Setting
Baud rate
(Addr. 001)
(in Baud)
(Addr. 001)
(in Baud)
0
0
300
300
I1
I1
I2
I2
I1
I1
I1
I3
I3
I2
I2
I2
I1
I3
I1
Load
Load
I1
I2
I1
I1
I3
L1
I2
I2
I1
I1
I3
1
600
L2
1
600
L3
2
1200
2
1200
N
3
2400
3
2400
c
c
Risk of injury due to
Risk of injury due to
large currents and high
large currents and high
4
4800
4
4800
L1
L1
L1
L1
L1
L1
L1
electric voltages!
electric voltages!
L1
L1
L1
L1
L1
WARNING!
WARNING!
L2
L2
L2
L2
L2
L2
L2
Device
Device
5
9600
L2
L2
5
9600
L2
L2
L2
standard setting
L3
L3
L3
Current transformers operating with an open
Current transformers operating with an open
L3
L3
L3
standard setting
L3
L3
L3
L3
L3
L3
N
N
N
N
N
N
N
secondary circuit (high voltage peaks) can result
secondary circuit (high voltage peaks) can result
6
19200
6
19200
N
N
N
N
N
in serious or even fatal injuries.
in serious or even fatal injuries.
Avoid open operation of the current transformers -
Avoid open operation of the current transformers -
7
38400
7
38400
short-circuit unloaded transformers!
short-circuit unloaded transformers!
C
C
I1
I1
I2
I2
I1
I1
I1
I3
I3
I2
I2
I2
I1
I3
NOTE!
C
C
NOTE!
NOTE!
NOTE!
I1
I2
I1
I3
I2
I1
I2
I1
Configure the Baud rate on the device
Configure the Baud rate on the device
Information on current data and current
Information on current data and current
(addr. 001). Configuration via M-Bus is
(addr. 001). Configuration via M-Bus is
transformer data can be found in the user
transformer data can be found in the user
excluded.
excluded.
manual.
manual.
Unit
Unit
Resolution
Resolution
Device
Device
Format Byte
Format Byte
Current transformer,
Wh
Wh
10
10
0
0
Current transformer,
6
6
primary
primary
Wh
Wh
10
10
0
0
6
6
Programming mode
Programming mode
Wh
Wh
10
10
0
0
6
6
varh
varh
10
10
1
Unit indicator
1
6
6
Unit indicator
varh
varh
10
10
1
1
6
6
Current transformer,
Current transformer,
varh
varh
10
10
1
1
6
6
secondary
secondary
VAh
VAh
10
10
2
2
6
6
Current transformer
Current transformer
sec
sec
1
1
1
symbol
1
4
4
symbol
sec
sec
1
1
2
2
4
4
sec
Fig. "Current transformer" input area
sec
1
1
3
3
4
4
Fig. "Current transformer" input area
sec
sec
1
1
4
4
4
4
C
C
NOTE!
NOTE!
sec
sec
1
1
5
5
4
4
• Changes are only applied after exiting
sec
sec
1
• Changes are only applied after exiting
1
6
6
4
4
programming mode.
sec
sec
1
programming mode.
1
0
0
4
4
mA
mA
• For further information on current
1
1
4
4
4
4
• For further information on current
W
W
transformers and current transformer
1
1
5
5
4
4
transformers and current transformer
var
var
ratios, see the user manual.
1
ratios, see the user manual.
1
6
6
4
4
VA
VA
1
1
7
7
4
4
mV
mV
100
100
1
1
4
4
mV
mV
100
100
2
2
4
4
mV
mV
100
100
3
3
4
4
mA
mA
1
1
1
1
4
4
mA
mA
1
1
2
2
4
4
mA
mA
1
1
3
3
4
4
W
W
1
1
1
1
4
4
W
W
1
1
2
2
4
4
W
W
1
1
3
3
4
4
9
L1
L1
L1
L
L1
L1
L2
L2
L2
L
L2
L2
L3
L3
L3
L
L3
L3
N
N
N
N
N
N
I3
I3
I2
I2
I1
I3
I3
I2
I3
I1
I1
I3
L1
I2
I2
I1
I3
I3
I2
I3
I1
L2
L3
N
L1
L1
L1
L
L1
L1
L2
L2
L2
L
L2
L2
L3
L3
L3
L
L3
L3
N
N
N
N
N
N
I1
I3
I3
I2
I2
I1
I3
I3
I2
I3
I1
I1
I3
I1
I1
I3
I2
I2
I1
I3
I3
I2
I3
16