Bộ lập trình điều khiển ISaGRAF 1 DI + 1DO truyền thông Ethernet ICP DAS I-7188XGD

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μPAC-7186EG CR ISaGRAF based μPAC with 10/100M Ethernet (RoHS)

μPAC-7186EGD CR μPAC-7186EG with display (RoHS)

I-7188XG CR ISaGRAF based μPAC with 1 DI, 1 DO (RoHS)

I-7188XGD CR I-7188XG with display (RoHS)

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Bộ lập trình điều khiển ISaGRAF 1 DI + 1DO truyền thông Ethernet ICP DAS I-7188XGD

Highlight Information

80186, 80 MHz CPU or 80188, 40 MHz CPU

MiniOS7 Inside

Development Software: ISaGRAF Ver.3



10/100 Base-TX (for μPAC-7186EG)

Support Modbus Master


RTU, ASCII, RS-232/485/422

Support Modbus RTU/TCP Slave


Modbus RTU (RS-232/485/422) Slave


Modbus TCP Slave (not for I-7188XG)

Operating Temperature: -25 ~ +75 °C


The μPAC-7186EG Series (μPAC-7186EG, μPAC-7186EGD) is a palm-size PAC and includes ISaGRAF SoftLogic. It has one 10/100 Base-TX Ethernet port, one RS-232 port and one RS-485 port. The user can choose an I/O expansion board, X-Board, to expand the I/Os or memories of μPAC. μPAC-7186EG support Modbus Serial protocol, Modbus TCP/IP protocol, Modbus Master protocol, Remote I/O, Fbus, Ebus, SMS: Short Message Service, modem link, MMICON/LCD, ZigBee wireless communication, GPS application, FRnet, CAN remote I/O connection and user defined protocol.

The I-7188XG series (I-7188XG, I-7188XGD) is a palm-size PAC with ISaGRAF SoftLogic. It has 2 Serial ports (COM1:RS-232/RS-485 & COM2:RS-485). The user can choose an I/O expansion board, X-Board, to expand COM Ports, I/Os or memories of I-7188XG and μPAC-7186EG Series.


MiniOS7 Embedded Operating System (DOS-like)

Embedded ISaGRAF Ver.3 SoftLogic

Support IEC 61131-3 Standard

Accepts max. 64 KB ISaGRAF code size



Built-in watchdog timer (WDT) to improve the system stability

     80188, 40 MHz (for I-7188XG)

Flash: 512 KB

     80186, 80 MHz (for μPAC-7186EG)

2 Serial Ports (RS-232/485)


10/100M Ethernet Ports (not for I-7188XG)

     512 KB (for I-7188XG)

I/O Expansion Bus Interface (support one X-board I/O expansion board)

     640 KB (for μPAC-7186EG)





System Software


MiniOS7 (DOS-like embedded operating system)

Development Software


ISaGRAF Ver. 3

IEC 61131-3 standard



Max. Code Size

64 KB

Scan Time

5 ~ 100 ms for normal program

2 ~ 5 ms for normal program

25 ~ 500 ms (or more) for complex or large program

10 ~ 125 ms (or more) for complex or large program

CPU Module


80188, 40 MHz

80186, 80 MHz


512 KB

640 KB


512 KB


2 KB

16 KB


31 Bytes (battery backup, data valid up to 10 years)

RTC (Real Time Clock)

Provide second, minute, hour, date, day of week, month, year

64-bit Hardware Serial Number

Yes, for Software Copy Protection

Watchdog Timers

Yes (0.8 second)

Communication Ports



RJ-45 x 1, 10/100 Base-TX


RS-232 or RS-485 with internal self-tuner ASIC; non-isolated

RS-232 (TxD, RxD, RTS, CTS, GND), non-isolated


RS-485 with internal self-tuner ASIC; non-isolated

LED Indicator

System LED


LED Display

5-digit 7-segment LED display for (D) version

Digital Input







On Voltage Level

Connect to GND


Off Voltage Level



Digital Output




Output Type

Open Collector


Load Current

100 mA


Load Voltage

Max. 30 VDC


Hardware Expansion

I/O Expansion Bus

Yes, 1 (14 Pins)


Dimensions (W x L x H)

72 mm x 123 mm x 33 mm

72 mm x 123 mm x 35 mm


DIN-Rail or Wall Mounting


Operating Temperature

-25 ~ +75 °C

Storage Temperature

-30 ~ +80 °C

Ambient Relative Humidity

10 ~ 90 % RH (non-condensing)


Input Range

+10 ~ +30 VDC


Power reverse polarity protection

Power Consumption

2 W; 3 W for (D) version

1.5 W; 2.5 W for (D) version

Protocols (Note that certain protocols require optional devices)


1 ~ 255, User-assigned by software

Modbus RTU/ASCII Master

A max. of 2 ports: I-7188XG COM 2 ~ 3, μPAC-7186EG COM 1~ 3 (*). 
(To connect to other Modbus Slave I/O devices)
A max. of Mbus_xxx Function Block amount for 2 ports: μPAC-7186EG: 128; I-7188XG: 64.

Modbus RTU Slave 

A max. of 2 ports: COM1, one of COM2 or COM3 (*). 
(For connecting ISaGRAF, PC/HMI/OPC Server and HMI panels.)

Modbus TCP/IP Slave

Ethernet port supports Modbus TCP/IP Slave protocol for connecting ISaGRAF & PC/HMI.
μPAC-7186EG: up to 6 connections; I-7188XG: 0 connection.

User-defined Protocol

Custom protocols can be applied at μPAC-7186EG: COM1 ~ 8 or I-7188XG: COM2 ~ 8 using Serial communication function blocks. (*).

Remote I/O

One of COM2 or COM3:RS-485 (*) supports I-7000 I/O modules, I-87K base + I-87K Serial I/O boards, or RU-87Pn + I-87K High Profile I/O boards as remote I/O. A max. of 64 I-7000/87K remote I/O modules can connect to one PAC.


Built-in COM2 Port to exchange data between ICP DAS's ISaGRAF controllers.


(For μPAC-7186EG only)
Used to exchange data between ICP DAS ISaGRAF Ethernet PACs via the Ethernet port.

Send Email

(For μPAC-7186EG only) 
Provide functions to send email to a max. of 10 receivers with a single attached file via the Ethernet port through internet. If applying with an X607/608 X-Board, it could send Email with a single attached file and the maximum of file size is about X608:488 KB or X607:112 KB.

Short Message Service

One COM port (μPAC-7186EG: one of COM1 or COM3 or COM4; I-7188XG: one of COM3 or COM4) (*) can link to a GSM modem to support SMS. The user can request data/control the controller via a cellular phone. The controller can also send data and alarms to the user’s cellular phone. Optional GSM Modem: GTM-201-RS232 (850/900/1800/1900 GSM/GPRS External Modem)

Modem Link

Support PC remotely download & monitor the controller through COM4 of X504. (*)


COM3: RS-232 (*) supports the ICP DAS MMICON. The MMICON is featured with a 240 x 64 dot LCD and a 4 x 4 Keyboard. User can use it to display picture, string, integer, float, and input a character, string, integer and float.

Redundancy Solution

(For μPAC-7186EG only)
The slot0 of two PAC are plugged in one X107 and connect to I/O modules, one is Master, one is Slave. Master handles all inputs & outputs at run time. If Master is damaged (or Power off), Slave takes the control of Bus7000b. If Master is alive again, it takes the control of Bus7000b again. The change over time is about 5 seconds. Control data is exchanging via Ebus (if using a cross cable, there is no need of any Ethernet switch). All I/O should be RS-485 I/O except the status I/O in the slot 0: X107.


(For μPAC-7186EG only)
Use COM1 or COM3 ~ COM8 (*) to connect one I-7530: the RS-232 to CAN converter to support CAN/CANopen devices/sensors. One PAC supports Max. 3 RS-232 ports to connect Max. 3 I-7530 modules. (FAQ-086)

Optional I/O Functions  (Refer to the ISaGRAF PAC I/O Selection Guide for I/O Module list)

PWM Output

Pulse Width Modulation Output

All X-board series DO boards support PWM output. 8 channels Max. for one controller.
500 Hz max. for Off = 1 & On = 1 ms
Output square wave: Off: 1 ~ 32767 ms, On: 1 ~ 32767 ms


Parallel DI Counter

All X-board series DI boards support DI counter.
8 channels. Max. for one controller. Counter value: 32-bit, 500 Hz 
Max. Min. ON & OFF width must > 1 ms

Remote DI Counter

All remote I-7K/I-87K DI modules support counters. 100 Hz Max. value: 0 ~ 65535 (16-bit)

Remote High Speed Counter

I-87082: 100 kHz Max., 32-bit

SRAM Expansion

Battery Backup SRAM

With an X607/X608 plug in the only expansion I/O slot. Data can be stored in X607/X608, and then PC can load these data via COM1 or Ethernet. PC can also download pre-defined data to the X607/X608. (for retain variables)  Optional: X607: 128 KB, X608: 512 KB

* Note: The COM3 ~ COM8 are located in the optional X-board series if it is installed inside the μPAC-7186EG & I-7188XG.
* ISaGRAF FAQ: www.icpdas.com > Support > FAQ > ISaGRAF Soft-Logic PAC
ICP DAS recommends using NS-205/NS-208 or RS-405/408 (Ring Switch) Industrial Ethernet Switches.




Data sheet


Demo Files




Odering information

μPAC-7186EG CR

ISaGRAF based μPAC with 10/100M Ethernet (RoHS)


μPAC-7186EG with display (RoHS)

I-7188XG CR

ISaGRAF based μPAC with 1 DI, 1 DO (RoHS)

I-7188XGD CR

I-7188XG with display (RoHS)

Relate Products

ISaGRAF Development Software


ISaGRAF Workbench Software Ver.3 (256 I/O Tags) with one USB Dongle


ISaGRAF Workbench Software Ver.3 (32 I/O Tags)

Note: No upgrade service from ISaGRAF-32 to ISaGRAF-256 is available. 
(ISaGRAF-32 can be used to control more than 32 I/O tags. Please refer to Ch. 3.4 of the ISaGRAF User Manual.)

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