ID-Innovations RFID ASCII Protocol

The protocol handles the reading of ID data from RFID modules of ID series by ID-Innovations.

Communication line category: Serial, SerialOverUDP Device Redundant.
The transmission parameters: usually 9600 Baud, 8 data bits, no parity, 1 stop bit.

Communication line - configuration dialog box - Protocol parameters tab.
They influence some optional protocol parameters. The following line protocol parameters may be set:

Table 1

Parameter

Meaning

Unit /Size

Default value

Moxa Redundancy Check Timeout

A switching period of Moxa redundant equipment in case of longer communication pause. It is relevant only on SerialOverUDP Device Redundant line.

sec

30 sec

Communication protocol "ID-Innovations RFID ASCII Protocol".
Any address parameters are not required. Only one ID-Innovations sensor may be connected to the line. Because of a random module sending only in the moment of card loading, some conflicts could occur on the transmission line.

Possible I/O tags: Ci, Co, TxtI.

These three I/O tags must be configured to work properly:

I/O tag	Address	Meaning

I/O tag	Address	Meaning
TxtI	1	This text input acquires the value of ID read from the RFID card. The ID of the card is a hexadecimal number.
Ci	1	A cardinal input value incremented with every new ID published in a text I/O tag.
Co	1	After the ID published in TxtI is processed, the same value, as is in Ci, must be written into this I/O tag. This handshaking ensures that no information about the received ID will be lost.

ID Innovations ID SERIES DATASHEET Classic RFID module products, ID2/12/20/2WR/12WR, Advanced Digital Reader Technology, Manual Rev 22 – 9th Oct 2007

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Related pages:

Communication protocols