Leakwise ID-220 SERIES User Manual page 56

Notes:
•
The text of all messages is NOT case sensitive, i.e. "b" is the same as "B". The only
exception is Sensor Name, which must be in capital letters.
•
There are no space characters in all messages, only coma (,) separation is allowed. The
only exception is the text of Sensor Name which may include space character/s.
•
Message sender (the GSM modem of the SLC-220) is identified by the phone number of
the SIM card installed (user responsibility).
•
The messages don't include a date/time stamp. The user will have a date/time stamp when
the SMS message is received by the cell phone or receiving computer with GSM modem.
The serial number of the message helps to identify the order of the incoming messages to
the user.
•
When sending Configuration, Calibration or Inquiry text messages to SLC-220, the replies
from SLC-220 will be sent to the phone number which sent the initial message. Therefore,
the phone number of the sender must be recognizable and shouldn't be hidden.
•
Text messages sent to human user #1 are followed by a voice dial, which the user should
reject. This is to indicate that a message was sent, even if it wasn't received yet.
Notes for battery operated SLC-220 with GMS option:
The GSM modem will turn off after 10 minutes of inactivity of incoming / outgoing messages in
order to conserve battery power. After one hour, the modem will be turned on to check for
incoming messages.
The user can send text messages to the SLC-220 for quick response (subject to cellular network
load) in the following timing windows:
1. Within 10 minutes after system power-on - A session window of 10 minutes is initiated by
the first SMS sent to the SLC-220, and the SLC-220 will respond immediately.
2. Within 10 minutes after SLC-220 sends any text message – A session window of 10
minutes is initiated, and the user can communicate with the SLC-220 immediately.
Therefore the 10 minutes window will be extended as required, until the session is not
active for 10 minutes.
The user can send up to 20 messages to the SLC-220 at any time even when the GSM modem is
turned off. The SLC-220 will respond within one hour and initiate a session window of 10
minutes. It is the responsibility of the user to send correct messages and wait for confirmation
from the SLC-220 before continuing with additional settings which may create a conflict.
Note: The above is not implemented yet in firmware versions 4.1 and up.
Installing a SIM card in the GSM Modem:
The modem is attached to the instrument frame with a detachable two-part "Scotch" tape.
Locate the slot for inserting the SIM card (mini SIM size) and verify that the card is locked in place.
The SIM card should not be protected by a PIN code.
The GSM modem supports 2
SLC-220 User Guide Rev 2.0
nd rd
generation and 3 generation networks.
56
June 2018