Campbell CS-GSM/GPRS Bedienungsanleitung PDF herunterladen (Seite 51)

Appendix A. Using the COM110A with the PIN Security Feature Enabled

A-5

2: 30 Then Do

12: If Flag/Port (P91)

1: 12 Do if Flag 2 is High

2: 30 Then Do

;Turn off the COM110A

13: Do (P86)

1: 51 Set Port 1 Low

;Set flag 2 low

14: Do (P86)

1: 22 Set Flag 2 Low

;and disable the PIN code transmission via P97, just in case it is still trying

15: Do (P86)

1: 11 Set Flag 1 High

16: End (P95)

17: End (P95)

*Table 2 Program

02: 0 Execution Interval (seconds)

End Program

Other applications may require the PIN code to be sent prior to a callback call or

prior to sending an SMS message (see Technical Note 33 ‘Sending SMS Messages

using GSM modems’). For those applications which also use Instruction 97, the

AT+CPIN can either be sent first (as above) followed by a second call of P97 to

force the callback (once the first call is successful) or the AT+CPIN command can

be incorporated in the normal dial string. Please contact Campbell Scientific if

further advice on these techniques is needed.

If a COM110A with the PIN feature enabled is to be used with a PC as the base

station, the CPIN=nnnnnn command can be included at the end of the Modem

Initialisation string.

The COM110A will respond with a code indicating an error condition if

the PIN is sent more than once after it has been powered up. This will not

prevent the system dialling correctly.

NOTE

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