Burster RESISTOMAT 2329 User manual

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Manufacturer:
burster präzisionsmeßtechnik gmbh & co kg
Talstraße 1 - 5 Postfach 1432
76593 Gernsbach 76587 Gernsbach
© 2001 burster
präzisionsmeßtechnik gmbh & co kg
All rights reserved
Version: 06.03.2001
Software-Version: V 1999/01
Note:
The information contained in the following is subject to change without prior notice. No part of this document
must be reproduced or processed using electronic systems without prior, written approval.
burster does not provide any type of warranty for this device, including any implicit warranty concerning its
general quality or suitability for a particular purpose.
burster assumes no liability whatsoever for errors, incidental damage or consequential damage arising during
the operation of this device.
Milli-Ohmmeter
RESISTOMAT
®
Type 2329

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Table of Contents
1. General Information
2. Preparation for Operation
3. Control Elements and Connections
4. Manual Operation of the Device
5. Remote Control of the Device
6. Maintenance and Customer Service
7. Technical Data
8. Appendix - Control Example

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Page
1. General Information
1.1 Applications ....................................................................................................................... 1-1
1.2 Description ......................................................................................................................... 1-1
2. Preparation for Operation
2.1 Unpacking the device ........................................................................................................ 2-1
2.2 Commissioning the device ............................................................................................... 2-1
2.3 Supply voltage ................................................................................................................... 2-1
2.4 Mains fuse .......................................................................................................................... 2-1
2.5 Power supply ..................................................................................................................... 2-2
2.6 Operational test ................................................................................................................. 2-3
2.7 Calibration .......................................................................................................................... 2-3
2.8 Storage.. ............................................................................................................................. 2-3
3. Control Elements and Connections
3.1 Front panel ......................................................................................................................... 3-1
3.1.1 Description of the individual keys ......................................................................... 3-2
3.1.2 Description of the terminals .................................................................................. 3-3
4. Manual Operation of the Device
4.1 General instructions .......................................................................................................... 4-1
4.1.1 Meaning of the individual display segments ......................................................... 4-1
4.1.2 Overview of controls ............................................................................................. 4-2
4.1.3 Measurement errors ............................................................................................. 4-3
4.1.4 Measurement rate ................................................................................................ 4-4
4.2 Identification menu ............................................................................................................ 4-7
4.2.1 Setting the language............................................................................................. 4-8
4.2.2 Setting the date and time...................................................................................... 4-8
4.3 Main menu .......................................................................................................................... 4-9
4.3.1 Measurement stopped .......................................................................................... 4-9
4.3.2 Measurement started.......................................................................................... 4-10
4.3.3 Code input menu ................................................................................................ 4-11
4.3.3.1 Access menu ...................................................................................................... 4-11
4.3.3.2 Testing PLC inputs and outputs ......................................................................... 4-14

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Page
4.4. Function keys while a measurement is stopped .......................................................... 4-15
4.4.1 Datalogger evaluation menu............................................................................... 4-15
4.4.1.1 Display of the individual measurement values .................................... 4-15
4.4.1.2 Stochastic datalogger evaluation menu .............................................. 4-16
4.4.2 Comparator evaluation menu ............................................................................. 4-17
4.4.3 Max./min evaluation menu.................................................................................. 4-18
4.4.4 Parameter selection menu.................................................................................. 4-19
4.4.4.1 Measurement parameter menu ........................................................... 4-20
4.4.4.2 Datalogger setting menu ..................................................................... 4-27
4.4.4.3 Comparator setting menu.................................................................... 4-30
4.4.4.4 Temperature compensation menu ...................................................... 4-33
4.4.4.5 Display menu ...................................................................................... 4-35
4.4.4.6 Interface menu .................................................................................... 4-36
4.4.4.7 Device setting menu ............................................................................ 4-39
4.4.4.8 Printer menu ........................................................................................ 4-41
4.4.4.9 Status selection menu ......................................................................... 4-43
4.4.4.10 Additional PLC input/output bits .......................................................... 4-45
4.4.4.11 Scaling menu ...................................................................................... 4-46
4.4.4.12 Setting the contrast ............................................................................. 4-49
4.4.4.13 Calibration menu ................................................................................. 4-50
5. Remote Control of the Device
5.1 General information .............................................................................................................. 5-1
5.1.1 Terminal assignment of the RS232 interface .......................................................... 5-1
5.1.2 Control via the RS232 interface............................................................................... 5-1
5.1.3 Terminal assignment of the optional IEEE488 interface.......................................... 5-3
5.1.4 Control via the optional IEC bus interface ............................................................... 5-3
5.1.5 Terminal assignment of the PLC interface .............................................................. 5-5
5.1.6 Control via the PLC interface................................................................................... 5-6
5.2 The RESISTOMAT command language ............................................................................ 5-11
5.2.1 Introduction ............................................................................................................ 5-11
5.2.2 Command header .................................................................................................. 5-11
5.2.3 Command tree ....................................................................................................... 5-12
5.2.4 Query form............................................................................................................. 5-12
5.2.5 Navigating the command tree................................................................................ 5-12
5.2.6 Parameters ............................................................................................................ 5-13
5.2.7 End-of-command character ................................................................................... 5-13
5.2.8 Special features of the RESISTOMAT®................................................................. 5-13
5.2.9 Effects of the FETCH command during continuous measurement ....................... 5-13
5.2.10 Status messages ................................................................................................... 5-14
5.2.11 Operation Status Register ..................................................................................... 5-15

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Page
5.2.12 Questionable Status Register ................................................................................ 5-15
5.2.13 Standard Event Register ....................................................................................... 5-15
5.2.14 Status Byte ............................................................................................................ 5-16
5.3 SCPI commands.................................................................................................................. 5-17
5.3.1 Status Subsystem.................................................................................................. 5-17
5.3.2 System Subsystem ................................................................................................ 5-20
5.3.3 Display Subsystem ................................................................................................ 5-22
5.3.4 Source Subsystem ................................................................................................ 5-25
5.3.5 Trigger Subsystem ................................................................................................ 5-25
5.3.6 Measurement Instructions ..................................................................................... 5-26
5.3.7 Memory Subsystem ............................................................................................... 5-26
5.3.8 Register Subsystem .............................................................................................. 5-27
5.3.9 Hard Copy Subsystem........................................................................................... 5-28
5.3.10 Calculate Subsystem ............................................................................................. 5-32
5.3.11 Sense Subsystem.................................................................................................. 5-38
5.3.12 Scale Subsystem ................................................................................................... 5-45
5.3.13 Access Subsystem ................................................................................................ 5-47
5.3.14 Datalogger Subsystem .......................................................................................... 5-53
5.3.15 IEEE488.2 Commands .......................................................................................... 5-61
5.4 Status Register.................................................................................................................... 5-65
5.4.1 Standard Event Status Register ............................................................................ 5-65
5.4.2 Questionable Status Register ................................................................................ 5-65
5.4.3 Operation Status Register ..................................................................................... 5-65
5.5 Sample programs................................................................................................................ 5-66
5.5.1 Sample program for the RS232 interface .............................................................. 5-66
5.5.2 Sample program for the IEEE488 interface ........................................................... 5-69
5.6 Error status display ............................................................................................................ 5-75
5.6.1 Error status display in the error status field ........................................................... 5-75
5.6.2 Error status display in the temperature display field .............................................. 5-76
5.6.3 Calibration Error .................................................................................................... 5-76
6. Maintenance and Customer Service
6.1 Maintenance .......................................................................................................................... 6-1
6.2 Customer service .................................................................................................................. 6-1
6.3 Manufacturer's guarantee .................................................................................................... 6-1
6.4 Cleaning the device .............................................................................................................. 6-1
7. Technical Data.............................................................................................. 7-1
8. Appendix - Control Example ....................................................................... 8-1

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
WARNING
Special caution is required in the case of inductive test devices!
If - the plugs are pulled out of their sockets,
- the measurement current is switched over,
- the cables tear,
- the terminals on the test device are loose,
- the unit is switched off during measurement,
- the power is interrupted during measurement,
- the measurement current changes for any other reason:
then extremely dangerous inductive voltages can be generated
under these physical conditions!
A danger arises when ever the current flow through the test object is interrupted. In this case,
an extremely hazardous voltage is induced in the test object. Therefore, particular caution is
required when the test object is being disconnected from the RESISTOMAT or if the contacts
slip off or drop while energy is still stored in the test object. As the RESISTOMAT does not
indicate the level of this energy, the test object must be short-circuited prior to disconnection
in order for it to discharge fully.
For safety reasons, inductive test objects must not be unplugged from the device.
If a partially or fully grounded inductive test unit is unplugged from the device, a voltage
flashover might occur in the plug, thus exposing the operator to the flow of current in the
electrical circuit of the test object. This is extremely hazardous !!!!
Great care must be exercised if the device exhibits abnormal behaviour.
For example: No response to actuation of controls;
No supply of measurement results;
Unusual displays.
In such cases, always short-circuit the inductive test object and then disconnect it.

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
General
Information
1-1
1. General Information
1.1 Applications
The RESISTOMAT®type 2329 is particularly suitable for measurements of low impedances in
automation technology, and is capable of performing up to 50 measurements per second without any
problem.
This device complies with the latest CE guidelines and is designed for use in the laboratory as well as
heavy-duty industrial applications.
Classification and selection can be performed using a 2-fold and 4-fold comparator with switching
outputs; this feature is particularly useful for conducting serial tests.
The measurement of contact resistances (dry-circuit measurement) constitutes a special application,
as the load voltage in this case is limited to 20 mV (DIN 41640, Part 4 and IEC 132-1) to prevent 'wetting'.
The RS232 (standard) and IEEE488 (optional) computer interfaces allow fully automatic testing stations
to be set up. The PLC interface of the device allows it to be easily integrated into production control
systems.
Typical applications include measurements of the resistance and conductivity of:
●Melting fuses
●Airbag triggers
●Magnetic coils for automobiles and electrical fittings
●Plug-contacts and switches
●Commutator welded-joints
●Meter samples in cable manufacture
●Conducting tracks
etc.
1.2 Description
This device operates on the basis of proven 4-wire technology, whereby line and contact resistances
are eliminated. The measurement lines are monitored with an integrated cable-breakage sensor.
Needless to say, temperature compensation has been included for different test materials, such as
copper, brass, tungsten etc. Temperatures are measured using a Pt100 sensor, infrared sensor
(pyrometer) or any temperature transmitter equipped with an analog output.
For the measurement of low inductances, the measurement inputs are equipped with a special
protective mechanism which prevents voltage peaks from damaging the device when it is disconnected
from the test object.
If test measurements involving several different parameters need to be performed in an automatic
measuring system, up to 32 device settings such as the measurement range, limiting values,
temperature coefficient etc. can be stored for this purpose. These settings are called up by means of
a 5-bit pattern. Naturally, all device settings can also be performed via the RS232 or optional IEEE488
interface.
For serial measurements and production monitoring, the integrated datalogger can be used to store up
to 20,000 measured values, which can be divided into 32 individual blocks. A digital filter is used to
preselect the measured values to be stored. The stochastic datalogger evaluation menu displays the
maximum, minium and average values, as well as the standard deviation.

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329
General
Information
1-2
Controlling
Current
source
Protective
circuit
Rx A
D
Analog output
0 ... 10 V
µP
D
A
Temperature
compensation
Pt 100
0 ... 20 mA
4 ... 20 mA
0 ... 10 V
Clock
Datalogger
Keyboard
Display
I/0 Interface
Relays
RS232
(IEEE488)
Memory
Protective
circuit
Block Diagram

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Preparation for
Operation
220-240V
110-120V
I
0
2-1
2. Preparation for Operation
Mains voltage
selector switch
with fuse catch
2.4 Mains fuse
The mains fuse is located below the mains connection socket on the rear panel of the device.
Before replacing the fuse, ensure that the device has been properly disconnected from the
mains (remove the connection cable from grounded socket).
Only use original 5 x 20 mm, 0.125 AT fuses for 230 V~ and 0.2 AT fuses for 115 V~.
2.1 Unpacking the device
The device weighs 5.2 kg and is enclosed in a suitable, shockproof packaging.
Unpack the device carefully and ensure that the scope of delivery is complete.
Standard scope of delivery includes: 1 RESISTOMAT®micro-ohmmeter type 2329
1 Connecting cable
1 Copy of this manual
1 Demo disk.
Check the device thoroughly for any signs of damage.
If any damage seems to have occurred during transport, please notify the supplier within 72 hours.
The packaging should be retained so that it can be examined by the manufacturer and/or supplier.
The RESISTOMAT®type 2329 must only be transported in its original or an equivalent packaging.
2.2 Commissioning the device
Ensure that the mains voltage selector is set to the correct supply voltage. Using the accompanying
cable, connect the device to a standard, grounded socket.
Important: On no account should the device be switched on if it seems to have been damaged
during transport.
Dispersion from the mains network can give rise to hazardous voltages on the
housing and at the measurement input.
2.3 Supply voltage
The supply voltage has been set to
230 V~ at the factory; it can be changed
using the rotary selector switch.
Supply voltage: 230 V~ ±10 %
Frequency range: 45 Hz ... 65 Hz
Power consumption: 25 VA
Fuse rating: 0.125 AT
The device is preset
to a supply voltage
of 230 V. By
removing the fuse
catch and turning the
selector switch
180°, the device can
be set to a supply
voltage of 115 V.
Observe the fuse
rating!

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329
220-240V
110-120V
I
0
16
34
25
207-253 V 0,125 A T
104-126 V 0,2 A T
47- 63 Hz 25 VA
Pt 100
2
1
3
6
2
1
4
5
Rx
45 Vmax.
2329.0009
Ix
0,63 A M
Analog - I/O RS232
ϑ
ACHTUNG!
VOR ÖFFNEN DES GERÄTES
NETZSTECKER ZIEHEN.
SERVICE NUR DURCH FACHLEUTE.
NUR ANGEGEBENE
SICHERUNGSWERTE VERWENDEN.
WARNING!
TO PREVENT ELECTRICAL SHOCK
DO NOT OPEN COVERS.
REFER TO QUALIFIED PERSONNEL
NO USER SERVICEABLE PARTS
INSIDE.
CAUTION!
TO PREVENT FIRE REPLACE ONLY
WITH SAME TYPE AND SHOWN
RATING OF FUSE.
1/5 - Analog - I/O
6 In 0-10 V= /100 kΩ
7 In 0-20 mA=/14 Ω
9 Out 0-10 V=/0,3 mA
2329.0008
D
I
G
I
T
A
L
I
/
O
P
O
R
T
I
E
E
E
4
8
8
30 Vmax.
Ext. 24 V=
Preparation for
Operation
2-2
2.5 Power supply and connection of signal lines
- For reasons of electromagnetic compatibility, the mains socket of the device must only
be connected to the 230 V~ (115 V~) mains network using the ferrite-coated, shielded
cable included in the scope of delivery.
- The optional IEEE488 bus-connection plug is standardized. To observe applicable
interference protection guidelines, only a shielded interface cable and shielded plugs
must be used.
- The standard RS232 interface must only be connected using a shielded, twisted cable and
shielded plugs.
(Optional)
IEEE488 interface;
pin assignment on
P. 3-9; description in
Chapter 5, from
P. 5-1
PE-FE
connection
(see P. 3-4)
Additional 5 x 20 mm
0.63 A M fine-wire fuse for
the measurement current
Mains selector
switch with fuse
catch
(see Page 2-1)
Mains switch
Mains socket
Measurement input
(pin assignment on
Page 3-3)
Input/output for analog
signals
(see P. 3-3)
Digital input/output for
PLC; pin assignment and
description in
Chapter 5.1.5, from P. 3-5
RS232 interface;
pin assignment on
P. 3-4; description in
Chapter 5, from
P. 5-1
Pt100 connection
(pin assignment on
Page 3-3)

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Preparation for
Operation
2-3
- The Pt100 terminal must only be connected to a Pt100 sensor by means of a shielded
cable.
The cable shield must not be located on the plug housing in the event of any uncertainty
concerning the sensor ground, as this might result in measurement errors caused by double-
ground compensation currents.
- The Rx measurement input must only be connected using a cable with individually
shielded wires. The maximum permissible capacitance here is 10 nF. The observation
of this limit is particularly important in the case of high-impedance test objects.
2.7 Calibration
The device is calibrated before delivery.
The measurement instruments used for this purpose comply with DIN ISO 9000ff standards.
The device should be re-calibrated once every year or so.
Re-calibration is performed via the RS232 interface; this task should only be carried out by the
manufacturer.
Basic balancing of the individual measurement ranges is described in Chapter 4.4.4.13 titled
"Balancing".
2.8 Storage
Permissible storage temperatures lie between 0°C and 60 °C .
If the device has been exposed to moisture during storage, ensure that it is completely dry on the
inside and outside before commissioning it.
No other measures are required for commissioning after storage.
2.6 Operational test
After the device is turned on, the following text is displayed for about 5 seconds:
Exception: This text does not appear if a quick start has been activated in access menu S5
(Chapter 4.3.3.1)
RESISTOMAT TYPE 2329
SN: 123456
VERSION: V0196
CAL: C0001
DATE: 11.01.96
TIME: 13:25:26
LANG TIME MAIN

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329
Control Elements
and Connections
3-1
3.1 Front panel
3. Control elements and Connections
As shown in the illustration, some keys have a dual function.
A touch-sensitive membrane keyboard is used here.
ESC
200 OHM 1 mA 23.4C
05
SINGLE AUTO
R
DATA COMP ENVE PARA
112.45Ω
START
BSP
9
87
POS1
456
STOP
+/-
21
RGE ↓
A/M
0
RGE ↑
.
C
ENT
F1 F2 F3 F4
↑
↑
↑
↑
RESISTOMAT 2329
END
3

RESISTOMAT®
Technical Data General
Information
Preparation for
Operation
Control Elements
and Connections
Manual Operation
of the Device
Remote Control of
the Device
Maintenance &
Customer Service
Page
Type 2329
Control Elements
and Connections
3-2
3.1.1 Description of the individual keys
↑
[8] : Number 8:
[ ] : The cursor-up key is used to select a parameter
in a menu.
[5] : Number 5.
[2] : Number 2.
[ ] : The cursor-down key is used to select a
parameter in a menu.
[.] : Entry of a decimal point.
[RGE
↑
] : When manual range selection is active, this
key is used to select the next highermeasuring
range in the main menu.
[7] : Number 7.
[POS1] : This key effects a jump to the first parameter in
any menu window.
[4] : Number 4.
[ ] : The left cursor key is used to select paremeter
values.
[1] : Number 1.
[END] : This key effects a jump to the last parameter in
a menu window.
[0] : Number 0.
[A/M] : When a measurement is not in progress, this
key is used to changeover between automatic
and manual range selection in the main menu.
These programmable keys have different
functions depending on the menu in which they
are used. Their designations are displayed in
the bottom line of each menu.
↑
[BSP] : This key (Backspace) is used to delete the
character entered last.
[START] : This key commences a measurement.
[+/-] : This key is used to enter the sign of a numerical
value.
[STOP] : This key is used to stop a measurement.
[ESC] : This key is used to cancel a current entry, and
exit the input mode
[ENT] : This key is used to acknowledge an entry or a
selection.
[9] : Number 9.
[ ] :
The Page-Up key is used to select the previous page
of a multi-page menu.
[6] : Number 6.
[ ] : The right cursor key is used to select parameter
values.
[3] : Number 3.
[ ] : The Page-Down key is used to select the next page
in a multi-page menu.
[C] : This key is used to fully delete the current entry and
repeat the input procedure from the beginning,
without exiting the input mode.
[
RGE ↓
] : When manual range selection is active, this key is
used to select the next lower measuring range in
the main menu.
↑
↑
[F1], [F2],[F3], [F4] :

RESISTOMAT®
Page
Technical Data Maintenance &
Customer Service
Remote Control of
the Device Manual Operation
of the Device Control Elements
and Connections Preparation for
Operation General
Information
Type 2329
Control Elements
and Connections
3-3
1+U
2+ I
3 Analog GND
4- I
5-U
Plug housing : Potential PE
Counter-plug : burster type 9900-V172
Note: The current path is protected with a
5 x 20 [mm] 0.63 MT fuse (located on the
rear panel of the device)
Measurement input
3.1.2 Description of the terminals
View of the socket
1+U
2+I
3- I
4 Functional ground
5 Functional ground
6-U
Plug housing : Potential PE
Counter-plug : burster type 4291-0
Two-wire technique can be used if the corresponding
sensor terminals are bridged.
Note: NEVER apply the cable shield to the plug
housing if there is any uncertainty
concerning the sensor ground, as this
might result in inadvertent potential
binding on the temperature sensor and lead to
measurement errors caused by double-ground
compensation currents.
(The plug housing serves as protective ground)
Pt100 input
Analog I/O
9-pole Sub MinD
plug
View of the plug
5
1
9
6
1 Analog GND
2NC
3NC
4NC
5 Analog GND
6 0-10 V input for temperature measurement (RE>100 kΩ)
7 4/0-20 mA input for temperature measurement (RE< 20
Ω)
8NC
9 0-10 V analog output of the measurement signal
(Imax = 0.2 mA)
Plug housing : Potential PE
Counter-plug : Type 9900-V609
Note: The mA input (pin 7) is protected internally by a
5 x 20 [mm] 0.25 AT fuse.
>
16
34
25
4
2
5
1
3
View of the socket