M2M FAQs
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    I-8212W
    I-8212W-3GWA / I-8213W-3GWA
    I-8213W-4G Series
    G-4500
    G-4513-3GWA

    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?

    GTM-201
    GTM-201-3GWA

    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?

    GTM-204M-Series

    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?

    GT-530

    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?

    GT-531

    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?

    SMS-530
    SMS-531
    SMS-DBS
    GT-534

    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?

    GT-540 / GT-540P

    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?

    GT-541
    back
    GRP-520
    back
    GRP-530M/GRP-540M
    back
    GTP-500M

    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?

    back
    GTP-541M

    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

    M-4132

    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?

    M2M-720-A

    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?

    G-4514-4G Series

    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.

    M2M RTU

    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)?

    WF-2571

    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?

    WF-2572

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

    RMV-531
    VxServer
    M2M-710D
    M2M-711D

    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?

    ZigBee Series
    RFU-400 Series

    Q01 : How to increase communication distance of RFU-400?
    Q02 : Why some time RFU-400 would receive the data of others channel?

    IR-210 / IR-712A / IR-712-MTCP

    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?

    WF-2000 I/O series

    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?

    RMV-760D-MTCP

    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?

    IOP760AM

    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?

    APW77BAM

    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?

    tBLE-720/BLE-USB

    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)?

    GAM-100

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