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em4
em4 Ethernet
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Program or debug your em4 Ethernet from
anywhere on the Ethernet local network
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Cooperate with up to 16 em4 Ethernet or other
equipment with the Ethernet Modbus TCP/IP
standard protocol Client and Server
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By the Receive periodically datalogs by email or
FTP in .CSV (Excel) le
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Get an alert by email fully controlled by the
application program
Specic characteristics
Part number 88 981 133
Type B26-ET
Inputs 16 digital inputs (including 4 High Speed, 8 analog 0-10 V / potentiometers
Outputs 10 digital outputs (including 2 solid states 0.5 A PWM, 2 relays 6 A and 6 relays 8 A)
Supply 24 VDC
Finish Glossy black
On front panel color Black RAL 9011
On terminal block color Blue RAL 5017
Protection rating
(in accordance with IEC/EN 60529)
Weight Without packing: 345 g
Dimensions Without packing: 124.6 x 90 x 60.6 mm / 4.91 x 3.54 x 2.38 inch
Programming / exploitation USB & Ethernet port / Ethernet port
Ethernet connection Type RJ45, 10/100 Mbit/s, MDI/MDIX
Adressage Static or dynamic (DHCP server / Auto IP)
Protocoles
Cable length Maximun length between 2 devices: 100 m / 3937 inch
Ethernet earthing Yes, refer to the quick reference guide supplied with the product
Modbus TCP (client / server), Discovery, UDP, TCP, SMTP, SSL (workshop communication)
With packing: 148 x 103 x 65 mm / 5.83 x 4.06 x 2.56 inch
em4 Ethernet - Glossy black
and 4 analog 0-10 V / 4-20 mA)
IP 40 on front panel
IP 20 on terminal block
With packing: 395 g
General characteristics
Products certication CE, cULus Listed
Conformity with the low voltage directive
(in accordance with BT 2006/95/EC)
Conformity with the EMC directive
(in accordance with 2004/108/EC)
Power supply earthing None
Overvoltage category 3 in accordance with IEC/EN 60664-1
IEC/EN 61131-2 (Open equipment)
IEC/EN 61000-6-1 (Residential, commercial and light-industrial environments)
IEC/EN 61000-6-2 (Industrial)
IEC/EN 61000-6-3 (Residential, commercial and light-industrial environments)
IEC/EN 61000-6-4 (Industrial)
I
WWW.CROUZET-AUTOMATION.COM I 02 I em4 I WWW.CROUZET-AUTOMATION.COM I 03 I em4
Pollution Degree: 2 in accordance with IEC/EN 61131-2
Maximum utilization altitude Operation: 2000 m
Mechanical resistance Immunity to vibrations IEC/EN 60068-2-6, Fc test
Resistance to electrostatic discharge Immunity to ESD IEC/EN 61000-4-2, level 3
Resistance to HF interference
(Immunity)
Conducted and radiated emissions
(in accordance with EN 55022/11 group 1)
Operation temperature
Storage temperature
Relative humidity 95% max. (no condensation or dripping water)
Screw terminals connection capacity Flexible wire with ferrule: 1 conductor: 0.2 to 2.5 mm² (AWG 24-14)
Processing characteristics
LCD display Display with 4 lines of 18 characters
Programming method FBD (Function Block Diagram), including SFC (Sequential Function Chart, Grafcet)
Program size Function blocks: typically 1000 blocks
Program memory Flash
Removable memory N.A
Data memory 2 k octets
Backup time
(in the event of power failure)
Data backup Data backup in the ash memory is guaranteed if the product is powered on more
Cycle time From 2 ms to 90 ms, default value: 10 ms
Clock data retention 10 years (lithium battery) at 25°C (77°F)
Clock drift Drift < 12 min/year (at 25°C (77°F))
Timer block accuracy 0.5 % +/- 2 cycle time
Start up time on power up < 7 s base alone, < 5 s base + 2 expansions + 1 accessory (RS485)
Self test Test rmware integrity (checksum memory)
Supply
Nominal voltage 24 VDC (-15% / +20%)
Operating limits 20.4 - 28.8 VDC
Immunity from micro power cuts y 1 ms (repetition 20 times)
Max. absorbed power 5 W @ 24 VDC, 6.5 W @ 28.8 V, - 0.3 W backlight OFF
Protection against polarity inversions Yes
Inputs
Digital and high speed digital inputs 24 VDC - 4 inputs from I1 to I4
Input used as digital input
Input voltage 24 VDC (-15% / +20%)
Input current 1.8 mA @ 20.4 V
Transport: 3000 m
Immunity to shock IEC/EN 60068-2-27, Ea test
Immunity to radiated electrostatic elds IEC/EN 61000-4-3, level 3
Immunity to fast transients (burst immunity) IEC/EN 61000-4-4, level 3
Immunity to shock waves IEC/EN 61000-4-5
Radio frequency in common mode IEC/EN 61000-4-6, level 3
Class B
-20°C (-4°F) +60°C (140°F) (+40°C (104°F) in a non-ventilated enclosure)
-40°C (-40°F) +80°C (176°F)
Flexible wire with ferrule: 2 conductors: 0.2 to 0.75 mm² (AWG 24-18)
Rigid wire: 1 conductor: 0.2 to 2.5 mm² (AWG 24-14)
Rigid wire: 2 conductors: 0.2 to 0.75 mm² (AWG 24-18)
Tightening torque: 0.5 N.m (4.5 lb-in) (tighten using screwdriver diam. 3.5 mm)
Stripping length: 6 mm
Macro blocks: 64 max. (256 blocks per macro)
Program and settings in the controller: 10 years
Data memory: 10 years
than 10 seconds
6 s / month (at 25°C (77°F) with user-denable correction of drift).
Synchronizable by network
Stability of the internal power supply
Check the conformity of the em4 device conguration with the conguration in the
application program
2.1 mA @ 24 V
2.5 mA @ 28.8 V
Input impedance 11.6 kΩ
Logic 1 voltage threshold u 15 VDC
Making current at logic state 1 u 1.3 mA
Logic 0 voltage threshold y 10 VDC
Release current at logic state 1 y 0.8 mA
Response time 1 to 2 cycle times
Sensor type Contact or 3-wire PNP
Conforming to IEC/EN 61131-2 Type 1
Input type Resistive
Isolation between power supply and inputs None
Isolation between inputs None
Protection against polarity inversions Yes
Status indicator On LCD screen
Cable length y 100 m
Input used as high speed digital input
Maximum counting frequency 3 channels encoder (I1, I2, I3): 20 kHz*
Other functions 4 chronometers (I1, I2, I3, I4 )
Cable length y 3 m with shielded twisted cable
Digital 24 VDC and analog inputs 12 bits / 28.8 V - potentiometer - 8 inputs from I5 to IC
Input used as digital input
Input voltage 24 VDC (-15% / +20%)
Input current 1.8 mA @ 20.4 V
Input impedance 11.6 kΩ
Logic 1 voltage threshold u 11 VDC
Making current at logic state 1 u 1 mA
Logic 0 voltage threshold y 9 VDC
Release current at logic state 1 y 0.7 mA
Response time 1 to 2 cycle times
Sensor type Contact or 3-wire PNP
Conforming to IEC/EN 61131-2 Type 1
Input type Resistive
Isolation between power supply and inputs None
Isolation between inputs None
Protection against polarity inversions Yes
Status indicator On LCD screen
Cable length y 100 m
Input used as analog input
Measuring range
Input impedance 11.6 kΩ
Maximum value without destruction 28.8 VDC max
Input type Common mode
Resolution 12 bit at maximum input voltage (10 bit at 10V)
Value of LSB 7.03 mV
Conversion time Controller cycle time
Maximum error in 0-10V mode +/- 1.1 % of full scale at 25°C (77°F)
Maximum error in 0-V power supply mode +/- 2 % of full scale at 25°C (77°F)
Repeat accuracy at 55°C (131°F) +/- 0.5 %
2 independent counters (I1, I2) (I3, I4) (Cumul, IND, DIR): 2 channels: 40 kHz*,
4 channels: 20 kHz*,
2 independent counters (I1, I2) (I3, I4) (PH, PH2): 2/4 channels: 20 kHz*
4 independent counters (I1, I2, I3, I4) (Up/Down): 1 channel: 60 kHz*, 2 channels:
40 kHz*, > 2 channels: 20 kHz*
* with a time cycle <= 10 ms and a ton / toff = 50% +/- 5%, level 0 < 2V and level 1 >
20,4V
4 tachometers (I1, I2, I3, I4 )
2.1 mA @ 24 V
2.5 mA @ 28.8 V
0 10 V or 0 V power supply
+/- 1.6 % of full scale at 55°C (131°F)
+/- 3 % of full scale at 55°C (131°F)