ICP DAS GTP-541M User Manual

GTP-541M FAQ Ver1.0

1

ICP DAS CO., LTD.

GTP-541M

FAQ

GTP-541M FAQ Ver1.0

2

ICP DAS CO., LTD.

Tables of Content

Q01: How can I confirm that my SIM card can support GTP-541M?................................3

Q02: Unable to register troubleshooting (4G light is abnormal) ...................................... 3

Q03: How to switch between different functions? ............................................................ 3

Q04: DI function is abnormal, how to solve it ................................................................... 5

Q05: No action when using the Uart software to the ModBus command under the…...6

Q06: Why can't I log in to the Utility software? ................................................................. 6

Q07: What is the difference between Level Trigger and Edge Trigger mode? .............................. 7

Q08: Can foreign numbers be used? ................................................................................. 7

Q09: After triggering the alert message, the phone received multiple message ........... 7

Q10: Can the GTP-541M use the NC/NO trigger SMS at the same DI? ............................ 7

Q11: I send a ModBus command to the GTP-541M via the PLC and receive a duplicate

message ............................................................................................................................... 8

Q12: The format of the voice file I used has been determined to be the same as that

in the manual. Why is there still no voice when receiving the voice alarm? ................. 8

Q13: GTP-541M has used the utility to set parameters and write them successfully,

but why can't the SMS alarm be triggered? ...................................................................... 8

Q14: Writing parameters using the utility fails. ……………………………………………..8

Q15: The alert message was not received. ...................................................................... 8

Q16: Can I change the typesetting of variable SMS content?.........................................8

Q17: After a period of time, the 4G light will be on without flashing. …………………..8

GTP-541M FAQ Ver1.0

3

ICP DAS CO., LTD.

Q01: How can I confirm that my SIM card can support GTP-541M?

A01:

The frequency bands supported by the GTP-541M are:
FDD LTE (Asia 4G system): B1/B3/B8
TDD LTE (China 4G system) : B38/B39/B40/B41
GSM/GPRS (2G system) 850/900/1800/1900 MHz
WCDMA (3G system) 850/900/1900/2100 MHz

Please ask the SIM card carrier you want to use:

1.

Is there any support for the above bands?

2.

Whether the area where the GTP-541M is placed can receive the signal of this
frequency band

Q02: Unable to register troubleshooting (4G light is abnormal)

A02:

➢ Confirm that the antenna and SIM card are properly installed.
➢ Use your mobile phone to confirm if the SIM card can be registered.
➢ Confirm the SIM card by referring to step Q01.
➢ Confirm that the PIN Code is set correctly, or use your mobile phone to cancel the

PIN Code.

Turn on Utility to confirm if the signal strength is too low (< 30%)
ModBusSMS function: Page.30 - Section 5.6
DIOSMS Features: Page.77 - Section 6.6
RMV function: Page.102 - Section 7.5

Q03: How to switch between different functions?

A03:

The GTP-541M needs to update the firmware to switch between different functions.
After updating the firmware, you must use the Utility setting to reply to the factory default.
Proceed as follows:

1.

Open the screw at the red frame and remove the SD card.