B&B Electronics DCDSS1 manual Data Delivery Methods, Error Conditions, Buffer-Based Trigger

Buffer-Based Trigger

The buffer-based trigger automatically dials the modem after the data buffer is a determined percentage full. The range is from 10% to 80% in 5% increments. Keeping the buffer trigger below 100% capacity allows for additional data to be stored while the connection is being made.

Digital Input Trigger

The digital input trigger dials the modem when an input signal is detected on the DCDSS1 digital input. It is a +5 volt signal, which can be set to active high or active low. The signal must stay active for at least 5 milliseconds to be detected.

Data Delivery Methods

Data and error logs can be emailed using a MIME attachment or sent using FTP. Additionally, notifications can be configured to allow email or pager notification that data has been delivered.

Error Conditions

The DCDSS1 has a 2.9 Kbyte error log buffer for storing error conditions. Each error condition is time stamped.

Error Condition Logged		Cause
	Data received from the local serial
BYTE(S) LOST	port during ISP communications or
	when in Bypass Mode is not stored
DATA OVERRUN	Onboard UART FIFO overflowed
DATA ERROR	Character received with parity,
	framing or break error
	An error occurred in the email
NOTIFICATION FAILED	notification process (mail server
	connection, command structure,
	etc.)
	An error occurred in the email data
DATA ATTACHMENT FAILED	process (mail server connection,
	command structure, etc.)
ERROR ATTACHMENT	An error occurred in the email error
	log process (mail server connection,
FAILED
	command structure, etc.)
FTP FAILED	An error occurred in the FTP
	process (FTP server connection,
Documentation Number DCDSS11702 Manual		Appendix A	3

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