AT Command Set

4.19 AT+CIND Indicator control

MC35 offers two ways of displaying status and event reporting messages by indicators. With AT+CIND? you can directly query the current status of each indicator. With AT+CMER you can en- able or disable the presentation of these indicators in the form of the Unsolicited Result Code +CIEV. See Chapter 4.25 for instructions.

MC35 supports indicator event reporting for the following items: battery capacity, signal quality, service availability, generation of sound in the ME, indication of unread SMS, full SMS storage, call in progress and roaming activities. Whenever a status change or event occurs, MC35 sends the as- sociated URC to the application (if enabled with AT+CMER).

Please note that the AT+CMER command enables the presentation of +CIEV URCs only if the indi- cators are registered with the AT+CIND write command. By default, all of them are registered. Any URCs you do not need can easily be excluded if deregistered with <stat>=0.

 

Test command

Response

 

 

 

 

AT+CIND=?

+CIND: (<descr>,(list of

supported <ind>s)) [,(<descr>,(list of supported

 

 

 

<ind>s))[,...]]

 

 

 

 

Parameters

 

 

 

 

 

See read command

 

 

 

 

 

 

 

 

 

Read command

Response

 

 

 

 

AT+CIND?

TA returns the status of the ME indicators.

 

 

 

+CIND: <ind>[,<ind>[,...]]

 

 

 

 

OK

 

 

 

 

 

If error is related to ME functionality

 

 

 

+CME ERROR: <err>

 

 

 

 

Parameter

 

 

 

 

 

<ind>

integer type value, which shall be in range of corresponding <descr>

 

 

 

<descr> values reserved by this ETS and their <ind> ranges:

 

 

 

 

"battchg"

battery charge level (0-5),

 

 

 

 

 

where (0-5) means 0, 20, 40, 60 or 100 per cent

 

 

 

 

 

of the the remaining battery capacity. If no battery

 

 

 

 

 

is connected to the ME, then the value will be al-

 

 

 

 

 

ways equal to 5. See also Chapter 8.5.

 

 

 

 

"signal"

signal quality (0-7 or 99 if not measurable). The

 

 

 

 

 

indicated value is the bit error rate of the signal

 

 

 

 

 

quality. See also Chapter 4.46.

 

 

 

 

"service"

service availability (0-1)

 

 

 

 

"sounder"

sounder activity (0-1)

 

 

 

 

"message"

unread message (0-1)

 

 

 

 

"call"

call in progress (0-1). Voice und data calls only.

 

 

 

 

"roam"

roaming indicator (0-1)

 

 

 

 

"smsfull"

a short message memory storage in the MT has

 

 

 

 

 

become full (1) or memory locations are available

 

 

 

 

 

(0); i.e. the range is (0-1)

 

 

 

 

 

 

 

 

 

 

 

 

 

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02.04.2002

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Siemens MC35 manual 19 AT+CIND Indicator control, +CIND descr,list, +CIND ind,ind
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MC35 specifications

The Siemens MC35 is a compact and versatile modem designed primarily for mobile communication, data transmission, and machine-to-machine (M2M) applications. Launched in the early 2000s, it quickly became popular due to its blend of performance, reliability, and ease of integration, making it a solid choice for developers and businesses.

One of the key features of the MC35 is its support for GSM and GPRS technologies. This allows it to connect seamlessly to various networks, enabling users to transmit data at speeds that were impressive for its time. The GPRS capability can offer data rates of up to 171.2 kbps, allowing for efficient data transfer even in areas with limited connectivity.

The MC35 is designed to support both SMS and voice functionalities, making it adaptable for a range of applications. This includes remote monitoring, telemetry, and alarm signaling. The ability to send and receive SMS messages is a significant advantage for applications that require immediate alerts and notifications, enhancing its utility in security systems and industrial automation.

Furthermore, the modem is equipped with a range of interfaces, including serial communication (RS232), which makes it compatible with various hardware devices. This facilitates easy integration into existing systems, whether for industrial machinery or consumer electronics. Additionally, it features a robust software development kit (SDK), which enables developers to create custom applications tailored to their specific requirements.

Power consumption is another notable characteristic of the Siemens MC35. It is engineered to be energy-efficient, which is especially important for battery-operated devices or systems that require a prolonged operation without frequent recharging or maintenance.

In terms of physical characteristics, the MC35 is compact and lightweight, allowing it to fit into various enclosure designs without occupying much space. Its durability ensures it can perform reliably in different environments, making it suitable for outdoor and industrial applications.

To summarize, the Siemens MC35 stands out as a reliable modem with a rich feature set that includes GSM and GPRS support, SMS and voice capabilities, easy integration through various interface options, and energy-efficient operation. Its adaptability makes it a valuable tool for a wide array of communication and data transmission tasks, solidifying its place in the evolution of mobile communications technology.
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