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You are here: Home » Products » Wi-Fi PLC » Wi-Fi&GSM PLC CPUs » EXM-12DC-DA-RT-4GWIFI
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  • Supply volt: DC12V-24V
  • Inputs: 4 DI/AI + 4 DI
  • Outputs: 2relay(10A)+2transistors(PNP)/0.3A
  • Expandable: Yes
Ideal solution for wireless Ethernet connectivity:

Ideal solution for those projects that require Ethernet connectivity, but require this to be wireless as well, then our range
of Wi-Fi programmable logic controllers may be just
the solution. For extra connectivity, some of these Wi-Fi PLC’s
also incorporate a GSM modem, which provides
GPRS/SMS connectivity to your micro PLC control system.Meanwhile,
our Android app (monitoring and control
software for smart phone) can be perfectly applied to our Wi-Fi PLC.
Hence, you can expect to use your Android smart phone to remotely control and monitor your CPU.

Configurable ANDROID APP for Ethernet & Wi-fi plc:

Timers  512
Counters  512
Function Blocks 512
Operation  temp. -20℃-55℃ 
Storage :-40℃-70℃
Protection : IP20(Non-waterproof) 
RTC accuracy : MAX ±2S/day
RTC Backup at 25 °C 20 days
Program and settings Backup :10 years
Data Power-off retentivity 10 years
Dimensions :  95*90*67 (Unit, mm)
Certificate : CE,C-UL,ROSH,RECH
Installation : 35mm-DIN rail or screw for installation
Modify parameters via keypad LCD:  yes
Password protection : Multiple password protection
Communication interface : 1 Program/RS232 port ( TTL interface
Communication protocol : Modbus RTU/ASCII, Modbus TCP(WIFI and GPRS)
It’s optional for xLogic to be either slave or master in Modbus network.

Technical Index

Power supply:
Nominal voltage DC 12-24V
Operating limits  DC 10.8-28.8V
Immunity from micro power cuts  Typ.5 ms 
Max. Startup current Max. 0.25A
Max. absorbed power 3.5 W (10.8V dc) ; 4 W (28.8V dc)
Protection against polarity inversions Yes
Input parameters:
Input No 8 ( I1-I8 )
Digital input  8 ( I1-I8 )
Analogue input  4 ( I1-I4)(0..10V DC) 
Digital inputs( I5-I8 ) 
Input voltage  DC0-28.8V
Input signal0  < 5V DC; <1mA
Input signal1  8 V DC;>1.7mA
Input current 2.3mA @ 10.8V dc
2.6mA @ 12.0 V dc
5.2 mA @ 24 V dc
6.3 mA @ 28.8 V dc
Response time  to 1 <1 ms to 0 <1 ms
Maximum counting frequency 60k Hz(I7--I8)
Sensor type Contact or 3-wire PNP
Input type Resistive
Isolation between power supply and inputs None
Isolation between inputs None
Inputs used as digital inputs( I1-I4 )
Input voltage  DC0-28.8V
Input signal0  < 5V DC;<0.1mA
Input signal1  8 V DC;>0.3mA
Input current  0.4mA @ 10.8V dc
0.5mA @ 12.0 V dc
1.2mA @ 24 V dc
1.5mA @ 28.8 V dc
Response time  to 1 Typ. 1.5 ms to 0 Typ. 1.5 ms
Maximum counting frequency Typ.4 HZ
Sensor type Contact or 3-wire PNP
Input type Resistive
Isolation between power supply and inputs None
Isolation between inputs None
Inputs used as analog inputs( I1-I4 )
Measurement range DC 0---10V
Input impedance Min, 24 ; Max. 72KΩ
Input voltage 28.8 V DC max
Resolution 10bit ,0.01V
Accuracy at 25 °C ± (Max.0.02)V
Accuracy at 55 °C ± (Max.0.04)V
Isolation between analog channel and power supply None
Cable length 10 m max.  shielded and twisted 
Output parameters:
Output No. 4 (Q1-Q4)
Output type  2Relay output +2 Transistor(PNP) output
Continuous current (Q1-Q2)Resistive load 10A/Inductive load 2A
(Q3-Q4) Max. 0.3 A per channel
Max. breaking voltage  (Q1-Q2) AC 250 V DC 30 V
(Q3-Q4) ≤ Supply voltage
Max. Allowable Power Force (Q1-Q2)1250VA 300W
(Q3-Q4) 9 W
Electrical durability Expectancy 10Operations at Rated Resistive Load
Mechanical life 107 Operations at No Load condition
Response time Operate Time : 15 mSec. Max.
Release Time : 10 mSec. Max.
Built-in protections Against overloads and short-circuits: No
Against overvoltages (*): No
Galvanic isolation None
PWM frequency(Q3-Q4) 1K HZ
PWM cyclic ratio(Q3-Q4)  to 100 %
PWM accuracy at 120Hz(Q3-Q4) < 0.5 % (20 % ➞ 80 %) load at 10 mA
Max. Breaking current PWM(Q3-Q4) 50 mA
Switch frequency:
Mechanism  10Hz
Resistor/light load  2Hz
Sensitive load  0.5Hz
Built-in wireless parameters:
Support 802.11b/g/n wireless standards
Support  TCP/IP/UDP network protocols
Support work as STA/AP mode
Support Router/Bridge mode networking
Support Transparent/Agreement Transmission Mode(Transparent used by EXM CPU)
Support Friendly Web Configuration Page or configuration by eSmsconfig
Outdoor 100m with 3dBi antenna and indoor 40m
FCC /CE Certificated
GSM parameter
Type of mobile wireless service SMS, GPRS
Operating frequency 850MHz,900MHz,1800MHz,1900MHz,
for GPRS transmission / with downlink /
for GPRS transmission / with uplink / maximum
80 kbit/s
40 kbit/s
Other parameters:
Ethernet port:  Built-In(10M/100M)
Xlogic<--->Xlogic(byWifit) 1 xlogic works as server can connect 32 client xlogics.
Xlogic<--->Etherne/Internet: xlogic works as TCP server or TCP client
Weight Approx.300g

Wi-Fi PLC Series CPU(4G version)
Model Supply 
Inputs Analog
 Input signal
Outputs SMS WIFI 
GPRS Ethernet G.W(g)
EXM-12DC-DA-RT-4GWIFI DC12~24V 4digital/analog
+ 4 digital
4 DC (0..10V) 2relay(10A)

EXM4G DIMENSION                                

Wiring Diagram


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Zip code :211100
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