Number Of Ring - Mitsubishi a2 Series Programming Manual

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2 Simple Application Controllers
The phone number detection is inactive for 15 seconds after the last RING. A new incoming
call within this guard time has no effect.
4 ) Sample VLS Program: Open roller shutter by phone call

6.32.1 Number of RING

The number of RING before detection can be setup in FB parameter. It is common for all CD
FB. The number of RING is the number of RING notifications, the modem sends to
number of RING a person hears at the telephone's earphone.
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2 doesn't answer the incoming call by Call Detection, so no connection is established.
For remote maintenance the connected modem has to be configured for automatic call answer
by AT command ATS0 like in older versions (V1.00 or 2.14). In case the setup number of RING
before automatically call answer is set to a lower number than the number of RING before call
detection, the Call Detect FB detects the phone number after the number of RING before
automatically call answer.
ACK messages can be realized by using SMS FB together with CD FB.
Table 6.50: Action when the modem is called
Setup
X = Y
X < Y
X > Y
X: Number of RING before Call Detect
Y: Number of RING before the modem automatically answers an incoming call
The Call Detect FB operates only by an simple handing failure.
So, install some safety device according to system.
Action when the modem is called
When number of RING reached X, the CD FB detects the phone
number and the modem answers the call.
When number of RING reached X, the CD FB detects the phone
number. Unless the number of RING doesn't exceed Y, the modem
doesn't answers the call.
When number of RING reached Y, the modem answers the call. Even if
X is bigger than Y, the CD FB detects the phone number.
Function Blocks 6
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2, not the
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