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GPRS,SMS,WiFi programmable logic controller for automation control EXM-12DC-DA-RT-WIFI-HMI

Incorporates a wide range of CPUs, expansions, various accessories and software, specially designed for GSM/GPRS wireless systems being used for remote measurements, data logging, control, diagnostics and object via short text messages (SMS) or CLIP calls. Configurable messages sending from device with static (text) or dynamic (text) and measured values content are a convenient way of passing important information to the monitoring center, or directly to the defined phone numbers. SMS messages sending or Call out can be triggered by change of binary input state, reaching alarm thresholds, marker state change, counters and clocks.

  • YUMO

  • China

  • DC12-24V

  • CE


GPRS,SMS,WiFi programmable logic controller for automation control EXM-12DC-DA-RT-WIFI-HMI

Timers : 512
Counters : 512

SMS Message input:32

SMS Message output:64

SMS Message input output:12

Function Blocks: 512
Operation temp.: -20℃-55℃

Storage temp:-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
Installation: 35mm-DIN rail or screw for installation

Expansion capacity: 8 modules(EXM-E-8)
Modify parameters via keypad LCD: yes
Password protection : 4-digit number password protection or disable program upload function
Communication interface : 1 RS232 port/TTL ,the extension port can be worked as RS485 port, if no IO extension used with CPU.
Communication protocol : Modbus RTU/ASCII


Technical Index


Power supply:
Nominal voltageDC 12-24V
Operating limitsDC 10.8-28.8V
Immunity from micro power cutsTyp.5 ms 
Max. Startup currentMax. 0.25A
Max. absorbed power3.5 W (10.8V dc) ; 4 W (28.8V dc)
Protection against polarity inversionsYes
Input parameters:
Input No8 ( I1-I8 )
Digital input6 ( I1-I2,I5-I8 )
Analogue input4( 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 current2.3mA @ 10.8V dc
2.6mA @ 12.0 V dc
5.2 mA @ 24 V dc
6.3 mA @ 28.8 V dc
Response time 0 to 1 :<1 ms ;1 to 0 :<1 ms
Maximum counting frequency60k Hz(I7--I8)
Sensor typeContact or 3-wire PNP
Input typeResistive
Isolation between power supply and inputsNone
Isolation between inputsNone
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 0 to 1 :Typ. 1.5 ms ;1 to 0 :Typ. 1.5 ms
Maximum counting frequencyTyp.:4 HZ
Sensor typeContact or 3-wire PNP
Input typeResistive
Isolation between power supply and inputsNone
Isolation between inputsNone
Inputs used as analog inputs( I1-I4 )
Measurement rangeDC 0---10V
Input impedanceMin, 24KΩ ; Max. 72KΩ
Input voltage28.8 V DC max
Resolution10bit ,0.01V
Accuracy at 25 °C± (Max.0.02)V
Accuracy at 55 °C± (Max.0.04)V
Isolation between analog channel and power supplyNone
Cable length10 m max.  shielded and twisted 
Output parameters:
Output No.4 (Q1-Q4)
Output type2Relay output+2Transistor(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


Electrical durability Expectancy105 Operations at Rated Resistive Load
Mechanical life107 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


PWM frequency(Q3-Q4)


PWM cyclic ratio(Q3-Q4)0  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:


Resistor/light load 2Hz
Sensitive load0.5Hz

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 serviceSMS, GPRS
Operating frequency


for GPRS transmission/with downlink/maximum          

for GPRS transmission / with uplink / maximum

80 kbit/s


40 kbit/s

Other parameters:
Ethernet port:



1 xlogic works as server can connect 32 client xlogics.


xlogic works as TCP server or TCP client

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