Datasheet

I em4 I 02 I www.em4-remote-plc.com
Maximum utilization altitude Operation: 2000 m
Transport: 3000 m
Mechanical resistance Immunity to vibrations IEC/EN 60068-2-6, Fc test
Immunity to shock IEC/EN 60068-2-27, Ea test
Resistance to electrostatic discharge Immunity to ESD IEC/EN 61000-4-2, level 3
Resistance to HF interference
(Immunity)
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
Conducted and radiated emissions
(in accordance with EN 55022/11 group 1)
Class B
Operation temperature
-20°C (-4°F)  +60°C (140°F) (+40°C (104°F) in a non-ventilated enclosure)
Storage temperature
-40°C (-40°F)  +80°C (176°F)
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)
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
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
Macro blocks: 64 max. (256 blocks per macro)
Program memory Flash
Removable memory N.A
Data memory 2 k octets
Backup time
(in the event of power failure)
Program and settings in the controller: 10 years
Data memory: 10 years
Data backup Data backup in the ash memory is guaranteed if the product is powered on more
than 10 seconds
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))
6 s / month (at 25°C (77°F) with user-denable correction of drift).
Synchronizable by network
Timer block accuracy 0.5 % +/- 2 cycle time
Start up time on power up < 3 s base alone, < 1.5 s base + 2 expansions + accessory interface
(USB or Modbus RS485)
Self test Test rmware integrity (checksum memory)
Stability of the internal power supply
Check the conformity of the em4 device conguration with the conguration in the
application program.
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 4W @ 24 VDC, 5.3 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
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