Rittal CMC-TC Manuel utilisateur

CMC-TC GSM Unit

Important note:

For reasons of clarity, these user instructions contain only the most significant details and information

and similarly cannot address every conceivable case with regard to installation, operation and

maintenance. Subject to technical modifications without prior notice. In case of ambiguity, the wording

of the corresponding German text is to prevail.

Accessory: Processing Unit:

GSM Unit 7320.820 PU 7320.100 from software version 1.10

Description:

If an alarm situation arises, the CMC-TC GSM Unit (in conjunction with an inserted

SIM card) is able to provide for wireless notification by SMS. The receipt of a defined

SMS, furthermore, can be used to authorise access to the enclosure.

It is to be noted that the aerial of the GSM Unit must lie within the reception and

transmission range of the selected mobile communication network at all times and

must not be left shielded as a result of other installation measures, e.g. metallic

enclosure. In this case, the aerial cable of the GSM Unit must be extended to permit

the aerial to be installed outside the shielded space. A sufficient signal quality must

be available at all times to enable proper reception and transmission.

As no network provider is able to guarantee the 100% availability of the network in a

particular area, Rittal is similarly unable to guarantee 100% alarm notification by

SMS. The following cases are examples for situations in which the transmitted SMS

fails to reach the intended recipient:

1. The mobile phone is not logged into a network, has been switched off or has

switched itself off automatically because its battery is empty.

2. If a mobile phone is used with a prepaid card, it may happen that the number is

not obtainable because the credit on the card is exhausted or else the card has

expired after a contractually agreed period. In some cases the SIM card may then

be permanently disabled. To be able to exclude this possibility, the user of the

GSM Unit must ensure that a corresponding credit is maintained on the prepaid

card at all times. Rittal recommends users not to rely on prepaid cards and

instead to conclude a standard contract.

DK 7320.820

Document number A 30594 00 IT 74

Connecting cable RJ 12/ RJ 12,

enclosed

SIM card slot and aerial

connection

We must point out furthermore, that the GSM Unit will attempt to send the defined

SMS regardless of the signal quality of the mobile network connection. In the case of

a poor signal quality, it is thus possible that the sent SMS fails to reach its intended

recipient. The signal quality can be checked as a percentage value via a browser or

via Telnet. Please note that, for technical reasons, only one GSM Unit or one Display

Unit can be operated at a Processing Unit.

Moreover, access via Hyperterminal is only possible after the Display Unit or GSM

Unit has been deactivated, as all components communicate via the serial interface.

After accessing the PU via Hyperterminal, it is also imperative to log out properly –

simply closing the window is not sufficient, as the connection is not reset and the PU

continues to wait for further inputs via Hyperterminal at the front interface. During this

time, all communication with the GSM Unit is interrupted.

The GSM Unit is recognised and initialised automatically by the PU software from

version 1.10.

The CMC-TC GSM Unit is connected to the RS232 interface port on the rear of the

Processing Unit (PU) with the enclosed RJ 12 cable and also receives its +24 V DC

power supply via this cable. The enclosed aerial is connected to the aerial connection

of the GSM Unit. The aerial provides the connection to the mobile communication

network. The transmission frequencies 900 MHz and 1800 MHz are supported. The

local mobile network provider chosen must operate on the basis of one of these two

frequency standards. Depending on the provider chosen and the services offered, it

may be possible to have the SMS read by voice computer to a fixed-network

subscriber or else forwarded as an e-mail or fax message. Please consult your

individual provider for further details.

The CMC-TC GSM Unit can be fixed to any plane surface of an enclosure with the

enclosed, self-adhesive Velcro strips. Further available options are a 1 U mounting

unit DK 7320.440 for the 482.6 mm (19") level and an individual mounting unit DK

7320.450 for attaching to the system frame in the enclosure.

No further components are required to operate the CMC-TC GSM Unit with the

Processing Unit.

Conditions for use / safety notes:

- The CMC-TC GSM Unit is only to be used in connection with the Rittal CMC-TC

system.

- Observe the contents of the user instructions / safety notes supplied with the

Processing Unit (7320.100) and these product-specific instructions. Particular

attention is drawn to the conditions for use, safety information and warranty notes

contained therein.

- Cables must always be routed separately from lines carrying mains voltage.

- The CMC-TC GSM Unit must only be used under ambient conditions within the

specified permissible range.

- The CMC-TC GSM Unit must not be opened. It does not contain any parts which

require servicing.

- Before making connections, ensure that the CMC-TC GSM Unit is suitable for use

with the available Processing Unit.

- Safety devices and provisions must never be rendered ineffective.

- Avoid any direct contact of the CMC-TC GSM Unit with water (e.g. condensation),

oily contamination or aggressive substances.

- The CMC-TC GSM Unit must not be used in environments subject to inflammable

gases or vapours. Protection against water, spraying, etc. is to be ensured through

installation in an enclosure or rack.

- The CMC-TC system must be disconnected from the power supply when the

connection is made between the CMC-TC GSM Unit and the PU.

- The CMC-TC GSM Unit must be installed properly in accordance with the

separate mounting instructions.

- The conditions for use / safety notes listed in the instructions must be observed

under all circumstances.

- In case of damage attributable to non-observance of these instructions / conditions

for use or of the instructions pertaining to the Processing Unit 7320.100, all

warranty claims will become null and void. Rittal accepts no liability whatsoever for

consequential damage!

-Rittal accepts no liability whatsoever for property damage or personal injury

attributable to improper handling or non-observance of the safety notes. In such

cases, all warranty claims will become null and void!

Description of the CMC-TC GSM Unit 7320.820

Front side:

1Duo-LED red / green: This LED is controlled via AT commands through the PU software and is

used to signal the current status of the GSM Unit:

red: The LED lights red during initialisation of the GSM Unit and

later also in case of inferior signal quality.

orange: The LED switches to orange during the sending of an SMS.

green: The LED switches to green following successful initialisation

of the GSM Unit and indicates that it is ready for operation.

2Green LED with

aerial symbol:

This LED is controlled directly by the GSM module and signals the status

of the GSM module:

off: The GSM module is switched off or else not logged

into a network

slow flashing: The module is logged into a network

rapid flashing: Data transmission in progress

1 2

Description of the CMC-TC GSM Unit 7320.820

Rear side:

1The CMC-TC GSM unit is connected to the Processing Unit via the RS232 interface port using the enclosed

RJ 12/RJ 12 connecting cable. The connecting cable provides the +24 V DC power supply and carries the data

exchange with the Processing Unit.

2The separate 24 V DC power supply connection is reserved for future further developments of the CMC-TC system.

3Symbol for the GSM aerial connection

4SIM card slot with aerial connection

Technical data:

GSM/GPRS 900/1800 class 2

Maximum power consumption: 150 mA

Max. length of connecting cable: 2 m

Rated voltage 24 V DC with supply from the Processing Unit

Shock 1g

Operating temperature range: +5°C to +45°C

Protection category: IP 40

4 3 2 1

Initial start-up

Important note: The following description applies for software version V1.10 for the

Processing Unit DK 7320.100, which is the version required to operate the GSM Unit.

§Initial start-up

The following measures are to be taken before the GSM Unit is connected to the

Processing Unit:

a) Insert a SIM card into the SIM card slot of the GSM module. You must possess

the following information pertaining to the SIM card used:

- PIN code: The PIN code serves to enable the SIM card and to authorise it

to log into a GSM network. If you should wish to change the current PIN

code, this can be done by inserting the SIM card into a mobile phone and

then using the functions provided by the phone for this purpose.

- PUK code (recommended), to be able to unlock the SIM card again in case

of problems.

- Subscriber number: The subscriber number of the card must be known in

order to be able to send an SMS to the GSM module.

- Call number of the SMS service centre of your chosen network provider, in

order to be able to send SMS messages.

b) Enter the following data into the Processing Unit via the Hyperterminal or Telnet

menu ´General configuration > SMS configuration´:

- PIN code (4-digit decimal number) of the SIM card

- Call number of the SMS service centre

- Up to 4 phone numbers to which an SMS is to be sent

- In addition, this menu option can be used to specify whether or not an SMS

is to be sent in the case of so-called unit messages (e.g. ´Unit detected´,

´Configuration change´, etc.).

c) For each sensor or output, you can specify the phone number(s) to which an

SMS is to be sent (each status change causes an SMS to be sent). This is done

via the menu option ´Sensor Units > Unit xyz > Sensor abc > Send SMS´. The

actual assignment is performed by entering a string in the form ´1&4´, for

example. In this particular case, a status change for the sensor concerned

would send an SMS to the phone numbers 1 and 4.

You may note, however, that it is also possible to edit and adapt these

specifications at any time later.

IMPORTANT: As with a mobile phone, the SIM card will be locked if an incorrect PIN code is

entered three times in succession. In this case, the card can only be unlocked by entering the

so-called PUK (Personal Unblocking Key). This can be achieved by inserting the SIM card into

a mobile phone and by entering the PUK and a new PIN code when requested to do so.

To avoid this situation, it is imperative to ensure that the correct PIN code is entered in the PU

before connecting the GSM Unit.

The actual procedure for entering the above settings is described below in the

section Settings.

The GSM Unit can only be connected after these settings have all been entered in

the PU. The software of the CMC-TC/PU polls this interface cyclically to detect

whether a device has been connected; it may therefore take up to a minute for the

GSM Unit to be found, if it is connected during operation. It is thus better to switch off

the PU, plug in the GSM Unit and then to restore the power supply; in this case, the

GSM Unit is recognised immediately.

The first process step is the initialisation of the module (red status LED lights); if the

GSM module has been able to log into a network, the green LED with the aerial

symbol starts to flash. At the end of the initialisation phase, the status LED also

switches to green.

Following successful initialisation, the unit checks continuously whether the status of

any of the sensors or outputs changes. If one or more phone numbers have been

defined for a particular sensor, an SMS will be sent to the corresponding recipient(s)

if a change is detected.

Furthermore, it checks whether any SMS has been received. If an incoming SMS is

detected, it will be evaluated and a corresponding action performed if the syntax is

found to be correct. For additional security, it checks at the same time whether the

phone number of the sender is to be found in its list of recipient phone numbers. An

action is only actually performed if this check is positive.

The reception signal quality, finally, is also monitored constantly. If the signal strength

is insufficient, the status LED is switched to red.

Settings

§Via Telnet

The menu ´General configuration / SMS configuration´ can be used to enter the

following values required to operate the GSM Unit:

- PIN Code: 4-digit PIN code to enable the SIM card.

- SMS Service Number: Telephone number of the SMS service centre of your

chosen network provider; this number is supplied with

the SIM card.

- Unit Messages: If this option is enabled, an SMS will also be sent in the

case of so-called ´Unit Messages´ (e.g. Timeout,

Configuration change, etc.). Such SMS messages are

sent to all recipient phone numbers.

- SMS Phone Numbers: Permits specification of up to 4 recipient phone numbers.

IMPORTANT: These numbers must be entered in their

international format (in the example here: +49 for

Germany, no leading zero in front of the dialling code).

Fig. 1 Setting the GSM parameters via Telnet

Fig. 2 GSM info display

The Telnet function ´Info Page´ can be used to display the status information for the

GSM Unit (Display: GSM Info). The following status returns are possible:

- No GSM unit found: No GMS Unit was found at the serial interface.

- GSM unit found: A GSM Unit has been found and initialisation is running.

- GSM unit o.k. [Signal 80%]: The GSM Unit has been initialised correctly and is functioning normally;

the signal strength is in this example 80%.

- Sending SMS: An SMS is being sent.

- Receiving SMS: An SMS is being received.

- GSM unit timeout: No response from the GSM Unit.

- PIN is missing: The initialisation detected that no PIN code has been entered.

- Service number missing: The initialisation detected that no service centre number has been

entered.

- Wrong PIN: The PIN code entered in the PU does not match the code on the SIM

card.

- PUK needed: An incorrect PIN code has been entered 3 times; the SIM card must be

unlocked with the corresponding PUK (Personal Unblocking Key).

- Not registered: The GSM Unit was unable to log into the network (e.g. because the SIM

card has expired or because no valid network was found).

Fig. 3 Setting the sensor parameters via Telnet

For each sensor or actuator it is possible to specify that one or more SMS messages

be sent in case of a status change.

This is done via the menu option ´Send SMS´. In the above example, it is specified

that an SMS be sent to the recipient phone numbers 1 and 3. If more than one phone

number is to be specified, the numbers must be separated with a ´&´ and the string

must not contain spaces. If SMS notification is to be ensured for all status changes,

the menu option ´Alarm Reset´ `manual` instead of `Auto` must be set to ´Auto´.

§Via a browser

Via the menu option ´GSM Unit´, it is also possible to use a Web browser to enter the

settings described in the section ´Via Telnet´; the line ´GSM Info´ displays the current

status of the GSM Unit (see section ´Via Telnet´).

Fig. 4 GSM Unit settings via a Web browser

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