Q01：I use GSM.lib to make a program, and it run normally on G-4500-2G. Does it can directly move to G-4513-3GWA?
Q02：I have a program that is compiled with LCD library, and it run normally on G-4500D-2G. Does it can directly move to G-4511D-2G or G-4513D-3GWA?
Q03：Why read the AI value will be abnormal?
Q04：Using the G-4513 found a month later, the program would have sent a text message every 30 seconds into every 5 seconds, the module to reopen in order to be normal. How to solve?

Q01：I want to use the module to receive the specified message after the DO output, and confirm by DI, if the DI has a short circuit, it will return a successful SMS, and otherwise it will return the failed SMS. In addition, the phone number transmitted must be approved by me.
Q02：I already have an executable running on the G-4513. Now I want to use the G-4514. Can this executable be transferred directly to the G-4514 use?
Q03：I connected the power supply to the G-4514. Why does the G-4514 shut down immediately after it starts, the power light goes out

Q01：What is the PIN code?
Q02：What are the GTM-201-RS232 and GTM-201-USB default baud rate?
Q03：What kind of information do you prepare before you use GPRS connection?
Q04：How to set the GTM-201-RS232 when I want to use GPRS on the Operating System of Windows XP?
Q05：How to set the GTM-201-USB when I want to use GPRS on the Operating System of Windows XP?
Q06：How to use the AT command to check signal quality?
Q07：How to use the AT command to send a SMS (Short message service)?
Q08：When I found the power indicator of GTM-201 is ligth up but the GSM indicator of GTM-201 is off. How do I to do?
Q09: How to test SMS function of GTM-201 on XPac-8000?
Q10: How to tefaq/GTM-201_FAQ_2013.pdfst SMS function of GTM-201 on WinCE?
Q11: How to use CSD mode to transmit data?
Q12: Why can’t GTM-201 register to the network when the SIM card, the antenna and signal are all ready?
Q13: Does GTM-201 have a built-in WDT?
Q14：I use smstools to send SMS by GTM-201-RS232 on Linux environment, but it shows "Modem is not clear to send" message. How can I fix this problem?
Q15：I can't find Linux driver on the website and CD. How to communicate with GTM-201-RS232?

Q01: How to test SMS function of GTM-201 in windows and XP8000?
Q02: How to test SMS function of GTM-201-3GWA on ViewPac or WinPac (WinCE)?
Q03: Where to download GTM-201-3GWA driver for windows 7?
Q04: Why the SMS that I received from GTM-201-3GWA is scrambled?
Q05: Why GTM-201-3GWA doesn’t work well while using demo code?
Q06: Why 3-wire RS232 can’t connect to the internet by using dial-up internet access?

Q01：How to use AT Command to send SMS in Text mode?
Q02：In PDU mode, how to use AT Command to send Chinese SMS?
Q03：SMS seems to be unable to store, how to set?
Q04：Demo Code can not receive text messages, how to solve?
Q05：How to read the SIM card message?
Q06：How do I get the SMS center number?
Q07：Is there a way to send SMS on Linux?
Q08：Is there any software that sends SMS on Windows?
Q09：What Baud rate communication is used by the module? Can I use non-default Baud rate?
Q10：How to limit only 2G or 3G or 4G? This setting can be permanent and effective?
Q11：How to check the current SIM card registration status?
Q12：Will I ring the ring when I receive an incoming call? If not, how do I know if I'm calling?
Q13：Can I send my voice file? If not, how can I place my voice?
Q14：What are the frequency bands currently supported by the 4G module? Which countries can use it?
Q15：If the scene will have USB interference problems, there are ways to avoid or prevent interference?
Q16：Use Access Port under AT Command will only get the same command response, can not send instructions, how to solve it?
Q17：Demo code can not be normal debugging, what may be the problem?
Q18：This may be a Driver conflict on Windows 10, please try to reinstall the USB Driver and completely remove all Drivers, then re-install the USB Driver for the following path?
Q19：How to send and receive long content SMS (content is greater than one sms)? Support Chinese?
Q20：The module has been at stat=2, Not registered, and can be registered with another SIM card. What should I do?

Q01: EXT LED is off without Li-battery
Q02: STA is always on
Q03: GT-530 Utility can not connect to GT-530
Q04: After event triggering, users can not receive SMS
Q05: Counter value is abnormal
Q06: The content of received SMS is abnormal
Q07: The time of receiving SMS is abnormal
Q08: STA led is blanking per 50 ms
Q09: Forget Password
Q10: If the GT-530 can not send a SMS, how does user do?
Q11: SMS DBS could not received the SMS from GT-530.
Q12: How many maximum value of counter does the GT-530 support?
Q13:How long does Li-Battery supply power to GT-530?
Q14: What is the GT-530 default login password?
Q15: What is the input impedance of the DI channels?
Q16: Is it possible to send SMS using the RS-232 interface?
Q17: How to send SMS by COM3?

Q01： How to send general alarm SMS?
Q02： How to send variable alarm SMS?
Q03： How to send the alarm SMS dynamically?
Q04： How to send the alarm voice?
Q05： How to Receiving the SMS?
Q06：If the System led (STA) is always on, how dose user do?
Q07：What to do if SMS DBS could not received the SMS from GT-531?
Q08：What to do if user can not hear the voice alarm form GT-531?
Q09：What type of voice file does GT-531 support?
Q10：If GT-531 is not replied by modbus command, how does user do?
Q11：What is the different between Level Trigger and Edge Trigger modes?
Q12：Can I use Trigger Time on Level Trigger mode?
Q13：How to send the general alarm SMS on Edge Trigger mode?
Q14：Why can't I read signal strength from GT-531 utility?
Q15：Can I use text editor to edit .prj file that is saved from GT-531 utility?
Q16：Why the voice alarm has serious noise?
Q17：What to do if I use SMS-DBS to receive SMS from GT-531?
Q18：When I use edge trigger mode and trigger GT-531 to send SMS by Modbus command, I got the error response “0x01 0x85 0x13 0x03 0x5D”
Q19：Why GT-531 has received SMS but I can’t read it by Modbus command?

Q01：I wrote in the hyperterminal +++hello and pressed enter 50 times, but my cellphone only receive 3 SMS. why it doesn't work and why sometimes it does work?
Q02：I cannot send out the message when we insert the phone number with “+“ in front of the phone number.
Q03：How to use SMS-530 to trigger SMS with ON and OFF at a same channel?

Q01： How to get the status of transmitting SMS?
Q02： I can’t make a good wav file. What kind of program do you offer for it?
Q03： When I send Modbus RTU command to change the contents of dynamic SMS
and dynamic phone number, SMS-531 reply exception 2. How to solve this problem?

Q01：If the SMS DBS do not work after I press the start button in SMS DBS, and the error message is “Open COMx Failed, Error code = 65533” as below, how can I solve it?
Q02：If the SMS DBS do not work after I press the start button in SMS DBS, and the error message is “GTM-201 Initilization Failed with COMx, Error code = -3” as below, how can I solve it?
Q03：If the SMS DBS do not work after I press the start button in SMS DBS, and the error message is “GTM-201 Modem Initilization Failed with COMx, Error code = -1” as below, how can I solve it?
Q04：When GTM-204M is used on SMS-DBS, USB can receive SMS normally. Why UART can not receive SMS?

Q01：What to do if I received a bad response from DI while using SMS command “@DIV"to check DI status?
Q02：What to do if AI reset time of Utility can’t write in flash of GT-534?
Q03：How to set parameters if I want to connect to Utility?
Q04：Why is GT-534 with VIBO system unable to register internet?
Q05：How to update Firmware?

Q01：If user's SIM Card is needed PIN Code or PUK Code, how does the user do?
Q02：How many modes does GT-540/GT-540P have?
Q03：What is the difference between the GT-540 and GT-540P?
Q04：What kind of information does user prepare about GPRS connection?
Q05：How many maximum capacity of micro SD does the GT-540/GT-540P support?
Q06：In RTU mode, the GT-540/GT-540P can not connect to remote server. How does user do?
Q07：If the STA of GT-540/GT-540P is always on, how does user do?
Q08：If the counter function of GT-540/GT-540P is always error. How does user do?
Q09：Why dose the GT-540/GT-540P read Modbus device that always failed?
Q10：In RTU mode, the remote server is a domain name, not the IP address. How does user do?
Q11：In E-mail mode, the GT-540/GT-540P can not send e-mail. How does user do?
Q12：Why the Email function is not working with Google or Yahoo account?
Q13：How to convert 2 bytes Hex value into a decimal reading for either a more meaningful 4-20mA?

Q01: How to confirm my SIM card can support GTP-500M?
Q02: Why GTP-500M can not register?
Q03: Do I need to buy an I/O expansion board?
Q04: Do I need to buy a battery box?
Q05: How to switch between different functions (ex. RTU -> RMV)?
Q06: Precautions of RTU function.
Q07: How many maximum capacity of micro SD does the GTP-500M support?
Q08: If the counter function of GTP-500M is always error. How does user do?
Q09: How to convert 2 bytes Hex value into a decimal reading for either a more meaningful 4 ~ 20mA?
Q10: SMS Function - What is DTMF?
Q11: SMS Function - Abnormal condition of SMS/Time content.
Q12: SMS Function - Forgot password.
Q13: SMS Function - I wrote in the Hyperterminal +++hello and pressed enter many times, but the phone could not receive the same number of SMS. why it doesn't work and why sometimes it does work?
Q14: RTU Function - The Peripheral Device Status Error Code.
Q15: RTU Function - How do I change the Timeout parameter of Modbus Devices?

Q01:How can I confirm that my SIM card can support GTP-541M?
Q02:Unable to register troubleshooting (4G light is abnormal)
Q03:How to switch between different functions?
Q04:DI function is abnormal, how to solve it
Q05:No action when using the Uart software to the ModBus command under the GTP-541M
Q06:Why can't I log in to the Utility software?
Q07:What is the difference between Level Trigger and Edge Trigger mode?
Q08:Can foreign numbers be used?
Q09:After triggering the alert message, the phone received multiple message
Q10:Can the GTP-541M use the NC/NO trigger SMS at the same DI?
Q11:I send a ModBus command to the GTP-541M via the PLC and receive a duplicate message

Q01: PWR LED indication of M-4132 is always turned off.
Q02: SA1 and SA2 of M-4132 is always turned on.
Q03: SA1 and SA2 LED of M-4132 flash slowly at the same time and keep the state long.
Q04: The audio quality of M-4132 is bad.
Q05: M-4132 can't send event report.
Q06: If I forgot the network settings, how can I do?
Q07: I can't open the webpage of the M-4132.
Q08. Client can't connect to Server.
Q09: Server and Client can't establish Com Port connection.
Q10: How to establish an ETM connection?

Q01: PWR LED indication of M2M-720-A is always turned off.
Q02: SA1 and SA2 of M2M-720-A is always turned on.
Q03: SA1 and SA2 LED of M2M-720-A flash slowly at the same time and keep the state long.
Q04: The audio quality of M2M-720-A is bad.
Q05: M2M-720-A can't send event report.
Q06: If I forgot the network settings, how can I do?
Q07: I can't open the webpage of the M2M-720-A.
Q08: Client can't connect to Server.
Q09: Server and Client can't establish Com Port connection.
Q10: How to establish an ETM connection?

Q01：I want to use the module to receive the specified message after the DO output, and confirm by DI, if the DI has a short circuit, it will return a successful SMS, and otherwise it will return the failed SMS. In addition, the phone number transmitted must be approved by me.

Q01：How does user check whether the device has connected to RTU Center or not?
Q02：Why does the RTU Center show the "Remote Station ID try to establish the connection, but can't fine the match Module!!" information?
Q03：How does user do when user executes the RTU Center that automatically loads device information every time?
Q04：When user executed the RTU Center, but happened error "Server close". How dose the user do?
Q05：If user finds the time/date of remote device that is wrong. How dose user do?
Q06：If user wants to upload the SD file of GT-540, GT-540P or G-4500 RTU. How dose user do?Q04：When user executed the RTU Center, but happened error "Server close". How dose the user do?
Q07: Can I program to read the RTU information myself? What should I do?
Q08: Can I store the real-time data on the RTU in the database?
Q09: Why can't I connect to MS SQL (SQL Server)?
Q10: Can I control the IO of my device through the RTU Center? What should I do?

Q01: WF-2571 doesn’t work at Ad-Hoc mode. What should I do?
Q02: WF-2571 doesn’t work at AP mode. What should I do?
Q03: How to get the MAC address of Ethernet device with “Get MAC Address” button?
Q04: When I boot WF-2571, the Link LED does not light on. Why?
Q05: What should I do to make the Wi-Fi signal strength better?

Q01: How can I get the MAC of device by the WF-2572 utility?

Q01: If I forget the M2M-710D's IP, how can I set and operate the M2M-710D by web browser?
Q02: Client cannot connect to Server.
Q03: Server and Client can't establish Com Port connection
Q04: Why can not the PC of user connect to M2M-710D in VxComm mode?
Q05: What kind of version does the VxComm driver support M2M-710D on user's PC?
Q06: Why can't M2M-710D connect to VxServer after making sure that the setting of server IP and port are correct and that the server executes VxServer?

Q01: If I forget the M2M-711D's Ethernet IP, how can I set and operate the M2M-711D by web browser?
Q02: Client cannot connect to Server.
Q03: Server and Client can't establish Com Port connection.
Q04: Can the M2M-711D operate in both Ad-Hoc and Infrastructure modes simultaneously?
Q05: What to do if M2M-711D does not work in AP mode?
Q06: How to configure M2M-711D in Ad-Hoc mode and connect it by a PC?

Q01 : How to increase communication distance of RFU-400?
Q02 : Why some time RFU-400 would receive the data of others channel?
Q03、Is there a repeater available for RFU-400 / RFU-433?
Q04、Is RFU-400 / RFU-433 possible to communicate with RS-485 device in repeater mode?
Q05、What is the difference between RFU-400 and RFU-433?

Q01 : How to solve the problem of text cut off in the utility?
Q02 : How to learn the Sharp-like IR commands of the devices successfully?
Q03 : Why can’t the utility connect to the IR learning remote module though the serial communication settings are correct?
Q04 : How do I reset the IR remote learning module to the default serial communication settings?
Q05 : What is the maximum length of the IR emitter cable for IR-210?
Q06 :How to build IR remote application with the ICP DAS’s ISaGRAF PAC？
Q07 :Why can’t WISE-5800 controller connect to IR-712A？
Q08 :How to configure the communication to the IR-210/IR-712A in the WISE-5800？
Q09 : How to integrate IR-712A with TouchPAD？
Q10 : What is the maximum remote control distance of the IR modules?
Q11 : How to avoid the IR emitter cables interference by the neighboring VGA cable?
Q12 : How to apply the IR learning commands to multiple IR learning modules ?
Q13 : How to copy IR commands from other IR learning data files ?
Q14 : Is there any IR API library?
Q15 : Is there any Modbus registers for IR learning and load/download IR data?
Q16 : What’s the difference between the IR cable CA-IR-SH2251 and CA-IR-SH2251-5?

Q01 : How to avoid the WF-2000 DO output memory effect is the connection between the modules is lost?
Q02 : Why WF-2000 Utility(v2.0 or later) can’t execute on Windows OS?
Q03 : How to increase the wireless connection distance?
Q04 : Why WF-2000 could not establish a connection with the wireless AP in an encrypted mode setting?
Q05 : How to establish a connection with the smart phone?
Q06 : How to establish a connection with the personal computer?
Q07 : How to configure the WF-2000 DI / DO series to Pair Connection mode?
Q08 : My system is Win7/Win8/Win10, and I cannot connect WF-2000 via Ad-Hoc network, what should I do?
Q09 : What is the difference between the Ver.B and the older version firmware?
Q10 : How can I make Wi-Fi connection range larger than 1km?
Q11 : The WF-2000 can't establlish the Wi-Fi connection after setting with Utility. How can I fix it?

Q01: How can I get the IP address when I forget the Module IP address?
Q02: The Wi-Fi connection is unstable, what should I do?
Q03: I cannot connect RMV-760D-MTCP via Ad-Hoc network, what should I do?
Q04: How do I test the RMV-760D-MTCP first mode on PC?
Q05: How do I make the multicast communication with the RMV-760D-MTCP?

Q01 : How do I connect IOP760AM without Wi-Fi router?
Q02: The roaming interval is not stable. How to make it better?
Q03: How do I check the Wi-Fi connection status?
Q04: How to set VAP function?
Q05: How to set the Virtual COM?
Q06: How to export or import the configuration files from IOP760AM?
Q07: How to restore IOP760AM into factory setting?
Q08: Can the IOP760AM work with 2.4 / 5 GHz at the same time?
Q09: The IOP760AM will disconnect with AP when the AP has change the Wi-Fi channel. How to avoid it?
Q10: How to enable Modbus gateway function in IOP760AM

Q01: How to export or import the configuration files from APW77BAM?
Q02: I forgot the APW77BAM’s IP. What should I do?
Q03: The Tx power of APW77BAM is too high. What should I do?

Q01：Does tBLE-720 and BLE-USB support Bluetooth classic device?
Q02：How can I check whether the tBLE-720 or BLE-USB is connected to other devices in the connection mode?
Q03：How does the tBLE-720 or BLE-USB connect to the specified module in the connection mode?
Q04： How do I confirm that the device is sending broadcast packets in the broadcast mode?
Q05： Can the tBLE-720/BLE-USB send the iBeacon packet in the broadcast mode?
Q06：Can tBLE-720/BLE-USB receive packets from other device (non tBLE-720/BLE-USB) in the
broadcast mode?
Q07：How do the tLBE-720/BLE-USB avoid connect to other device (non tBLE-720/BLE-USB)?
Q08：BLE payload architecture
Q09： How to test the tBLE-720/BLE-USB with Android phone?
Q10： How to disable the prompt message?

Q01：I can’t find the GAM-100 with the APP What should I do?
Q02：Do the GAM100 support other gauges?