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8-channel PWM Output and 8-channel High Speed Counter Digital Input & Digital Output Frequency Module with DCON and communicates over Modbus RTU Protocol.


8-channel PWM Output and 8-channel High Speed Counter Digital Input & Digital Output Frequency Module with DCON and communicates over Modbus RTU Protocol.

  Price:  $459.00  

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M-7088-G/S has 8 PWM output channels and 8 counter inputs. It can be used to develop powerful and cost effective analog control system. PWM (Pulse width modulation) is a powerful technique for controlling analog circuits. It uses digital outputs to generate a waveform with variant duty cycle and frequency to control analog circuits. It can be used to controlling the position/speed of motors, dimming the brightness of lamps, the speed of fans, and many other devices.

The M-7088-G/S supports both the Modbus RTU and the DCON protocols, which can be configured via software. The M-7088 G/S allows the load voltage to be increased from +3.5 to +50 V for the 8-channels PWM (Pulse Width Modulation) output and the 8-channels high-speed counter.


  • Automatic generation of PWM outputs by hardware, without software intervention.
  • 10Hz ~ 500KHz PWM output frequency with 0.1%~99.9% duty cycle
  • Software and hardware trigger mode for PWM output
  • Individual and synchronous PWM output
    Using software trigger mode, you can set configuration for all PWM channels then trigger them one by one or all of them at the same time.
  • Burst mode PWM operation for standby
  • DI channel can be configured as simple digital input channel or hardware trigger source of the PWM output.


  • Controlling the position/speed of motors
  • Dimming the brightness of lamps
  • Controlling the speed of fans


Interface RS-485
Bias Resistor No (Usually supplied by the RS-485 Master. Alternatively, add a tM-SG4 or SG-785.)
Format (N, 8, 1) (N, 8, 2) (E, 8, 1) (O, 8, 1)
Baud Rate 1200 to 115200 bps
Protocol DCON
Modbus RTU, DCON
Dual Watchdog Yes, Module (1.6 Seconds), Communication (Programmable)
LED Indicator/Display
System LED Indicator Yes, 1 as Power/Communication Indicator
I/O LED Indicator 7-Segment
7-Segment LED Display Yes
Intra-module Isolation, Field-to-Logic 2500 VDC
EMS Protection
ESD (IEC 61000-4-2) ±4 kV Contact for each Terminal
ESD (IEC 61000-4-4) ±4 kV for Power Line
Surge (IEC 61000-4-5) -
Reverse Polarity Protection Yes
Voltage Range +10 ~ +30 VDC 
Power Consumption 3.4 W
Dimensions (L x W x H) 123 mm x 72 mm x 35 mm
Installation DIN-Rail or Wall Mounting
Operating Temperature -25°C ~ +75°C (-13°F ~ +167°F)
Storage Temperature -40°C ~ +85°C (-40°F ~ 185°F)
Humidity 10 to 95% RH, Non-condensing

I/O Specification

Counter Input
Channels 8
Contact Wet
Sink/Source (NPN/PNP) Sink
On Voltage Level +3.5 ~ +50 VDC
Off Voltage Level +1 VDC Max.
Programmable Filter -
Programmable Threshold Voltage -
Counter Bits 32-bit
Counter Mode Up
Encoder Mode -
Frequency Mode -
Virtual Battery Backup Yes
Frequency Accuracy -
Max. Speed 1 Mhz
PWM Output
Channels 8
Sink/Source (NPN/PNP) Sink
Load Voltage +5 ~ +50 VDC
Max. Load Current Sink +50 VDC @ 200 mA/Channel
Source -
PWM Frequency 1 Hz ~ 500 KHz
Duty 0.1 to 99.9%
Mode Burst, Continuous
Burst Count 1 to 65535
Trigger Start Hardware or Software
Power-on Value -
Safe Value -

References and Support

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